Cross-listings

hep-th/0703070 [abs, ps, pdf, other] :: Title: Reheating, Dark Matter and Baryon Asymmetry: a Triple Coincidence in Inflationary Models
Authors: Stephon Alexander, Peter Mészáros
Comments: 5 pages, 1 figure

A scenario in which primeval black holes (PBHs) form at the end of an extended inflationary period is capable of producing, via Hawking radiation, the observed entropy, as well as the observed dark matter density in the form of Planck mass relics. The observed net baryon asymmetry is produced by sphaleron processes in the domain wall surrounding the PBHs as they evaporate around the electroweak transition epoch. The conditions required to satisfy these three observables determines the PBH formation epoch, which can be associated with the end of inflation, at $t\sim 10^{-32}\s$.
physics/0703035 [abs, ps, pdf, other] :: Title: On accuracy assessment of celestial reference frame VLBI realizations
Authors: Zinovy Malkin
Comments: 7 pages, submitted to Journal of Geodesy
Subj-class: Geophysics; Data Analysis, Statistics and Probability

In this paper, we propose to use the scatter of celestial pole offset (CPO) series obtained from VLBI observations as a measure of the accuracy of the celestial reference frame (CRF) realizations. Several scatter indices (SIs) including those proposed for the first time are investigated. The first SI is based on analysis of residuals of CPO series w.r.t. Free Core Nutation (FCN) model. The second group of SIs includes Allan deviation and its extensions, which allow one to treat unequal and multidimensional observations. Application of these criteria to several radio source catalogues showed their ability to perform a preliminary assessment of the quality of radio source catalogues, and 2D Allan deviation estimate seems to be a most sensitive measure. However, in common case, the sensitivity of tested criteria is yet not sufficient to distinguish between radio source catalogues of the highest quality. Proposed extensions of Allan deviation, weighted and multidimensional, can be effectively used also for statistical analysis of astro-geodetic and other time series.

Replacements

astro-ph/0610419 [abs, ps, pdf, other] :: Title: Cosmic string loops in the expanding universe
Authors: Ken D. Olum, Vitaly Vanchurin
Comments: 9 pages, 5 figures, RevTeX
Note: replaced with revised version Fri, 9 Mar 2007 17:18:43 GMT (24kb)
astro-ph/0610731 [abs, ps, pdf, other] :: Title: Can Astrophysical Gamma Ray Sources Mimic Dark Matter Annihilation in Galactic Satellites?
Authors: Edward A. Baltz, James E. Taylor, Lawrence L. Wai
Comments: 4 pages, 5 figures, Accepted for publication in ApJ Letters
Note: replaced with revised version Thu, 8 Mar 2007 23:32:52 GMT (30kb)
astro-ph/0610864 [abs, ps, pdf, other] :: Title: A not so short note on the Klein-Gordon equation at second order
Authors: Karim A. Malik
Comments: 12 pages, revtex; V2: minor changes, typos and errors corrected (list of corrections added to appendix), conclusions unchanged; V3: minor changes, corresponds to published version
Journal-ref: JCAP03(2007)004
Note: replaced with revised version Fri, 9 Mar 2007 15:07:09 GMT (15kb)
astro-ph/0611678 [abs, pdf, other] :: Title: Observing CMB polarisation through ice
Authors: Luca Pietranera, Stefan Buhler, Paolo G. Calisse, Claudia Emde, Darren Hayton, Viju Oommen John, Bruno Maffei, Lucio Piccirillo, Giampaolo Pisano, Giorgio Savini, T. R. Sreerekha
Comments: 7 Pages, 4 figures
Journal-ref: subm. to MNRAS, 2006
Note: replaced with revised version Fri, 9 Mar 2007 11:26:52 GMT (189kb,D)
astro-ph/0611948 [abs, ps, pdf, other] :: Title: Neutralino Dark Matter and the Curvaton
Authors: Martin Lemoine, Jerome Martin (IAP)
Comments: 21 pages, 11 figures. Version to appear in PRD (minor changes)
Note: replaced with revised version Fri, 9 Mar 2007 14:16:11 GMT (113kb)
astro-ph/0612501 [abs, ps, pdf, other] :: Title: XMM-Newton discovery of 7 s pulsations in the isolated neutron star RX J1856.5-3754
Authors: Andrea Tiengo, Sandro Mereghetti
Comments: Revised version published on ApJ - More details on data analysis, added energy dependence of pulsed fraction, and other minor changes
Journal-ref: The Astrophysical Journal, vol. 657, part 2 (2007), pages L101-L104
Note: replaced with revised version Thu, 8 Mar 2007 21:57:32 GMT (111kb)
astro-ph/0701590 [abs, ps, pdf, other] :: Title: Intermediate-mass black holes in dwarf galaxies: the case of Holmberg II
Authors: M. Mapelli (University of Zürich)
Comments: 11 pages, 7 figures, MNRAS, in press; matches the published version
Note: replaced with revised version Fri, 9 Mar 2007 17:13:00 GMT (247kb)
astro-ph/0702742 [abs, ps, pdf, other] :: Title: Discovery of Probable Relativistic Fe Emission and Absorption in the Cloverleaf Quasar H 1413+117
Authors: G. Chartas, M. Eracleous, X. Dai, E. Agol, S. Gallagher
Comments: 28 pages, includes 12 figures, Accepted for publication in ApJ
Note: replaced with revised version Fri, 9 Mar 2007 00:15:22 GMT (858kb)
astro-ph/0703108 [abs, ps, pdf, other] :: Title: Mining the SDSS archive. I. Photometric redshifts in the nearby universe
Authors: D'Abrusco Raffaele, Staiano Antonino, Longo Giuseppe, Brescia Massimo, Paolillo Maurizio, De Filippis Elisabetta, Tagliaferri Roberto
Comments: 45 pages, 14 figures, accepted for publication is the Astrophysical Journal
Note: replaced with revised version Fri, 9 Mar 2007 13:58:25 GMT (731kb)
astro-ph/0703143 [abs, ps, pdf, other] :: Title: On the difference between Herbig Ae and Herbig Be stars
Authors: J.C. Mottram, J.S. Vink, R.D. Oudmaijer, M. Patel
Comments: 14 pages, 5 figures. Accepted to MNRAS
Note: replaced with revised version Fri, 9 Mar 2007 11:48:36 GMT (314kb)
astro-ph/0703180 [abs, ps, pdf, other] :: Title: Gravitational recoil: signatures on the massive black hole population
Authors: Marta Volonteri
Comments: Submitted to ApJL
Note: replaced with revised version Fri, 9 Mar 2007 14:17:47 GMT (74kb)
gr-qc/0612128 [abs, ps, pdf, other] :: Title: A Strong Constraint on Ever-Present Lambda
Authors: John D. Barrow
Comments: 5 pages, minor additions, published version
Journal-ref: Phys. Rev. D 75, 067301 (2007)
Note: replaced with revised version Fri, 9 Mar 2007 10:19:47 GMT (6kb)
gr-qc/0703042 [abs, ps, pdf, other] :: Title: Reply to "The meaning of systematic errors, a comment to "Reply to On the Systematic Errors in the Detection of the Lense-Thirring Effect with a Mars Orbiter", by Lorenzo Iorio'', by G. Felici
Authors: Lorenzo Iorio
Comments: LaTex, 2 pages, no figures, no tables, 6 references. It refers to gr-qc/0703020, by G. Felici. Clarifications about the orbit overlap differences added
Subj-class: General Relativity and Quantum Cosmology; Space Physics
Note: replaced with revised version Fri, 9 Mar 2007 00:35:24 GMT (3kb)
hep-ph/0702084 [abs, src] :: Title: Spectral index and its running with deviation from the "slow-roll"
Authors: Tomohiro Matsuda
Comments: This paper has been withdrawn
Note: replaced with revised version Fri, 9 Mar 2007 06:36:15 GMT (0kb,I)
cond-mat/0610045 [abs, ps, pdf, other] :: Title: Relative entropy, Haar measures and relativistic canonical velocity distributions
Authors: Jörn Dunkel, Peter Talkner, Peter Hänggi
Comments: 15 pages: extended version, references added
Subj-class: Statistical Mechanics; Mathematical Physics
Note: replaced with revised version Fri, 9 Mar 2007 13:57:08 GMT (58kb)

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Cross-listings

gr-qc/0703039 [abs, ps, pdf, other] :: Title: Torsional Oscillations of Slowly Rotating Relativistic Stars
Authors: M. Vavoulidis, A. Stavridis, K.D. Kokkotas, H. Beyer
Comments: 6 pages, 1 figure. Accepted for publication to MNRAS

We study the effects of rotation on the torsional modes of oscillating relativistic stars with a solid crust. Earlier works in Newtonian theory provided estimates of the rotational corrections for the torsional modes and suggested that they should become CFS unstable, even for quite low rotation rates. In this work, we study the effect of rotation in the context of general relativity using elasticity theory and in the slow-rotation approximation. We find that the Newtonian picture does not change considerably. The inclusion of relativistic effects leads only to quantitative corrections. The degeneracy of modes for different values of $m$ is removed, and modes with $\ell=m$ are shifted towards zero frequencies and become secularly unstable at stellar rotational frequencies $\sim$ 20-30 Hz.
gr-qc/0703050 [abs, ps, pdf, other] :: Title: Vacuum properties of nonsymmetric gravity in de Sitter space
Authors: Tomas Janssen, Tomislav Prokopec (ITP & Spinoza Institute, Utrecht University)
Comments: 32 pages, 2 eps figures

We consider quantum effects of a massive antisymmetric tensor field on the dynamics of de Sitter space-time. Our starting point is the most general, stable, linearized Lagrangian arising in nonsymmetric gravitational theories (NGTs), where part of the antisymmetric field mass is generated by the cosmological term. We construct a renormalization group (RG) improved effective action by integrating out one loop vacuum fluctuations of the antisymmetric tensor field and show that, in the limit when the RG scale goes to zero, the Hubble parameter -- and thus the effective cosmological constant -- relaxes rapidly to zero. We thus conclude that quantum loop effects in de Sitter space can dramatically change the infrared sector of the on-shell gravity, making the expansion rate insensitive to the original (bare) cosmological constant.
gr-qc/0703053 [abs, ps, pdf, other] :: Title: Inspiral, merger and ringdown of unequal mass black hole binaries: a multipolar analysis
Authors: Emanuele Berti, Vitor Cardoso, Jose A. Gonzalez, Ulrich Sperhake, Mark Hannam, Sascha Husa, Bernd Bruegmann
Comments: 48 pages, 26 figures, 16 tables

We study the inspiral, merger and ringdown of unequal mass black hole binaries by analyzing a catalogue of numerical simulations for seven different values of the mass ratio (from q=M2/M1=1 to q=4). We compare numerical and Post-Newtonian results by projecting the waveforms onto spin-weighted spherical harmonics, characterized by angular indices (l,m). We find that the Post-Newtonian equations predict remarkably well the relation between the wave amplitude and the orbital frequency for each (l,m), and that the convergence of the Post-Newtonian series to the numerical results is non-monotonic. To leading order the total energy emitted in the merger phase scales like eta^2 and the spin of the final black hole scales like eta, where eta=q/(1+q)^2 is the symmetric mass ratio. We study the multipolar distribution of the radiation, finding that odd-l multipoles are suppressed in the equal mass limit. Higher multipoles carry a larger fraction of the total energy as q increases. We introduce and compare three different definitions for the ringdown starting time. Applying linear estimation methods (the so-called Prony methods) to the ringdown phase, we find resolution-dependent time variations in the fitted parameters of the final black hole. By cross-correlating information from different multipoles we show that ringdown fits can be used to obtain precise estimates of the mass and spin of the final black hole, which are in remarkable agreement with energy and angular momentum balance calculations.
gr-qc/0703061 [abs, ps, pdf, other] :: Title: A practical formula for the radiated angular momentum
Authors: Carlos O. Lousto, Yosef Zlochower
Comments: 4 pages, revtex4

We present a simple formula for the radiated angular momentum based on a spin-weighted spherical harmonic decomposition of the Weyl scalar psi_4 representing outgoing radiation in the Kinnersley tetrad. We test our formula by measuring the radiated angular momentum from three simulations of non-spinning equal-mass black-hole binary with orbital angular momentum aligned along the x, y, and z axes respectively. We find that the radiated angular momentum agrees with the differences in the remnant horizon spins and the initial angular momentum for each system.
hep-ph/0703019 [abs, ps, pdf, other] :: Title: Effect of Relic Neutrino on Neutrino Pair Emission from Metastable Atoms
Authors: Toru Takahashi, M. Yoshimura
Comments: 12 pages and 6 figures
Subj-class: High Energy Physics - Phenomenology; Atomic Physics

A possiblity of measuring the cosmic neutrino temperature $\sim 1.9 K$ and other important quantities such as the chemical potential $\mu$ and the decoupling temperature $T_d$ is discussed, using the recently proposed process of photon irradiated neutrino pair emission from metastable atoms. The Pauli blocking effect of relic neutrinos reduces the rate by a large factor $\approx (1 + m_1/T_d)/4$ at the threshold of the lightest neutrino pair (of mass $2m_1$). Correction of linear order in $\mu$ near the mass thresholds can be used to improve the constraint on the lepton asymmetry.
hep-ph/0703034 [abs, ps, pdf, other] :: Title: Increasing Effective Number of Neutrinos by Decaying Particles
Authors: Kazuhide Ichikawa, Masahiro Kawasaki, Kazunori Nakayama, Masato Senami, Fuminobu Takahashi
Comments: 22 pages, 2 figures

We present models of decaying particles to increase the effective number of neutrinos N_nu after big bang nucleosynthesis but before the structure formation begins. We point out that our scenario not only solves the discrepancy between the constraints on N_nu from these two epochs, but also provides a possible answer to deeper inconsistency in the estimation of the matter power spectrum amplitude at small scales, represented by sigma_8, between the WMAP and some small scale matter power measurements such as the Lyman-alpha forest and weak lensing. We consider (a) saxion decay into two axions; (b) gravitino decay into axino and axion; (c) Dirac right-handed sneutrino decay into gravitino and right-handed neutrino.
hep-ph/0703075 [abs, ps, pdf, other] :: Title: Probing Low Energy Neutrino Backgrounds with Neutrino Capture on Beta Decaying Nuclei
Authors: Alfredo G. Cocco, Gianpiero Mangano, Marcello Messina

We study the interaction of low energy neutrinos on nuclei that spontaneously undergo beta decay showing that the product of the cross section times neutrino velocity takes values as high as 10^{-42} cm^2 c for some specific nuclei that decay via allowed transitions. The absence of energy threshold and the value of the cross section single out these processes as a promising though very demanding approach for future experiments aimed at a direct detection of low energy neutrino backgrounds such as the cosmological relic neutrinos.
hep-th/0703101 [abs, ps, pdf, other] :: Title: Scale-invariance in expanding and contracting universes from two-field models
Authors: Andrew J. Tolley, Daniel H. Wesley
Comments: 22 pages, typos corrected

We study cosmological perturbations produced by the most general two-derivative actions involving two scalar fields, coupled to Einstein gravity, with an arbitrary field space metric, that admit scaling solutions. For expanding universes, we find that scale-invariant adiabatic perturbation spectra can be produced for any equation of state parameter $w$ that satisfies $-1 \le w < -1/3$, and that all the scaling solutions are attractors. For contracting universes, we show that scale-invariant adiabatic perturbations can be produced continuously as modes leave the horizon for any $w>-1/3$. The corresponding background solutions are unstable, which we argue is a universal feature of contracting models that yield scale-invariant spectra. At no point do we assume slow-roll. The presence of a nontrivial metric on field space is a crucial ingredient in our results.

Replacements

astro-ph/0606320 [abs, ps, pdf, other] :: Title: Rapid X-ray Declines and Plateaus in Swift GRB Light Curves Explained by A Highly Radiative Blast Wave
Authors: Charles D. Dermer (NRL)
Comments: 13 pages, 7 figs, extended analysis in response to referee report, model now explains both rapid declines and plateau phases
Note: replaced with revised version Fri, 9 Mar 2007 21:27:08 GMT (504kb)
astro-ph/0607487 [abs, ps, pdf, other] :: Title: CMB quadrupole suppression: II. The early fast roll stage
Authors: D. Boyanovsky, H. J. de Vega, N. G. Sanchez
Comments: Some comments and references added
Journal-ref: Phys.Rev. D74 (2006) 123007
Note: replaced with revised version Mon, 12 Mar 2007 15:16:56 GMT (163kb)
astro-ph/0607508 [abs, ps, pdf, other] :: Title: CMB quadrupole suppression: I. Initial conditions of inflationary perturbations
Authors: D. Boyanovsky, H. J. de Vega, N. G. Sanchez
Comments: Some comments and references added
Journal-ref: Phys.Rev. D74 (2006) 123006
Note: replaced with revised version Mon, 12 Mar 2007 15:13:46 GMT (133kb)
astro-ph/0611047 [abs, ps, pdf, other] :: Title: Relativistic neutron star merger simulations with non-zero temperature equations of state I. Variation of binary parameters and equation of state
Authors: R. Oechslin, H.-T. Janka, A. Marek (MPI for Astrophysics, Garching)
Comments: 20 pages, 15 figures, accepted for publication in A&A, included changes based on referee comments
Note: replaced with revised version Mon, 12 Mar 2007 12:50:21 GMT (934kb)
astro-ph/0611258 [abs, ps, pdf, other] :: Title: Observational constraints on a decaying cosmological term
Authors: Riou Nakamura, Masa-aki Hashimoto, Kiyotomo Ichiki
Comments: 5 pages, 3 figures, Proceedings of International Symposium on Nuclear Astrophysics -Nuclei in the Cosmos IX-, CERN, Geneva, June 25-30, 2006
Journal-ref: Proceedings of Science, PoS(NIC-IX)149, (2006)
Note: replaced with revised version Mon, 12 Mar 2007 14:25:32 GMT (167kb)
astro-ph/0611690 [abs, ps, pdf, other] :: Title: Rapid-Response Mode VLT/UVES spectroscopy of GRB060418: Conclusive evidence for UV pumping from the time evolution of FeII and NiII excited- and metastable-level populations
Authors: P.M. Vreeswijk, C. Ledoux, A. Smette, S.L. Ellison, A. Jaunsen, M. I. Andersen, A.S. Fruchter, J.P.U. Fynbo, J. Hjorth, A. Kaufer, P. Moller, P. Petitjean, S. Savaglio, R.A.M.J. Wijers
Comments: 15 pages, 9 figures, referee comments incorporated, resubmitted to A&A
Note: replaced with revised version Sat, 10 Mar 2007 21:44:10 GMT (210kb)
astro-ph/0611750 [abs, ps, pdf, other] :: Title: Nongaussianity from Tachyonic Preheating in Hybrid Inflation
Authors: Neil Barnaby, James M. Cline
Comments: 16 pages, 2 figures. Comments added to introduction
Note: replaced with revised version Mon, 12 Mar 2007 19:12:22 GMT (340kb)
astro-ph/0612564 [abs, ps, pdf, other] :: Title: X-ray Hardness Evolution in GRB Afterglows and Flares: Late Time GRB Activity Without N_H Variations
Authors: Nathaniel R. Butler, Daniel Kocevski
Comments: 23 pages plus 18 figures and 3 tables, Accepted to ApJ
Note: replaced with revised version Sat, 10 Mar 2007 17:32:47 GMT (385kb)
astro-ph/0701701 [abs, ps, pdf, other] :: Title: A Comprehensive Study of Short Bursts from SGR 1806-20 and SGR 1900+14 Detected by HETE-2
Authors: Yujin E. Nakagawa, Atsumasa Yoshida, Kevin Hurley, Jean-Luc Atteia, Miki Maetou, Toru Tamagawa, Motoko Suzuki, Tohru Yamazaki, Kaoru Tanaka, Nobuyuki Kawai, Yuji Shirasaki, Alexandre Pelangeon, Masaru Matsuoka, Roland Vanderspek, Geoff B. Crew, Joel S. Villasenor, Rie Sato, Satoshi Sugita, Jun'ichi Kotoku, Makoto Arimoto, Graziella Pizzichini, John P. Doty, George R. Ricker
Comments: 50 pages, 14 figures, accepted for publication in PASJ
Note: replaced with revised version Sat, 10 Mar 2007 06:38:05 GMT (505kb)
astro-ph/0701854 [abs, ps, pdf, other] :: Title: PLUTO: a Numerical Code for Computational Astrophysics
Authors: A. Mignone, G. Bodo, S. Massaglia, T. Matsakos, O. Tesileanu, C. Zanni, A. Ferrari
Comments: To be published in ApJ Supplement; corrected the size of Fig. 7
Note: replaced with revised version Mon, 12 Mar 2007 11:25:01 GMT (676kb)
astro-ph/0702738 [abs, ps, pdf, other] :: Title: Polarisation studies of the prompt gamma-ray emission from GRB 041219a using the Spectrometer aboard INTEGRAL
Authors: S. McGlynn (1), D. J. Clark (2), A. J. Dean (2), L. Hanlon (1), S. McBreen (3), D. R. Willis (3), B. McBreen (1), A. J. Bird (2), S. Foley (1) ((1) University College Dublin, (2) University of Southampton, (3) MPE Garching)
Comments: 11 pages, 10 figures, accepted by A&A, 1 reference added, typo corrected
Note: replaced with revised version Mon, 12 Mar 2007 16:35:53 GMT (293kb)
gr-qc/0608062 [abs, ps, pdf, other] :: Title: Measuring coalescing massive binary black holes with gravitational waves: The impact of spin-induced precession
Authors: Ryan N. Lang, Scott A. Hughes
Comments: 22 pages, 10 figures. A small error has been found in the code that was used in this analysis. Paper updated to reflect results of corrected code. An erratum has been submitted to PRD
Journal-ref: Phys.Rev. D74 (2006) 122001
Note: replaced with revised version Fri, 9 Mar 2007 22:49:48 GMT (881kb)
gr-qc/0701069 [abs, ps, pdf, other] :: Title: Gravitational self force on a particle in circular orbit around a Schwarzschild black hole
Authors: Leor Barack, Norichika Sago
Comments: 31 pages, 17 figures. Minor changes; accepted for publication in PRD
Note: replaced with revised version Mon, 12 Mar 2007 15:22:23 GMT (109kb)
hep-th/0701199 [abs, ps, pdf, other] :: Title: Entanglement, holography, and the cosmological constant
Authors: Jae-Weon Lee, Jungjai Lee, Hyeong-Chan Kim
Comments: 5 pages, 1 fig., revtex, arguments about pressure extended
Note: replaced with revised version Sat, 10 Mar 2007 14:59:09 GMT (74kb)
physics/0612066 [abs, ps, pdf, other] :: Title: Cosmology in Portugal: The First 20 Years
Authors: Orfeu Bertolami
Comments: Plain latex file, 15 pages. Updated data
Subj-class: History of Physics; Physics and Society
Note: replaced with revised version Sat, 10 Mar 2007 19:22:03 GMT (13kb)

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Cross-listings

gr-qc/0703008 [abs, ps, pdf, other] :: Title: Hawking radiation from the quantum Lemaitre-Tolman-Bondi model
Authors: C. Kiefer, J. Mueller-Hill, T. P. Singh, C. Vaz
Comments: 14 pages

In an earlier paper, we obtained exact solutions of the Wheeler-DeWitt equation for the Lemaitre-Tolman-Bondi (LTB) model of gravitational collapse, employing a lattice regularization. In this paper, we derive Hawking radiation in non-marginally bound models from our exact solutions. We show that a non-vanishing energy function does not spoil the (approximate) Planck spectrum near the horizon. We can also reliably compute corrections to the Bogoliubov coefficient because our solutions are exact. The corrections are obtained by going beyond the near horizon region and are shown to introduce additional greybody factors, which modify the black body spectrum of radiation from the black hole.
gr-qc/0703060 [abs, ps, pdf, other] :: Title: Stability of spherically symmetric solutions in modified theories of gravity
Authors: Michael D. Seifert
Comments: ReVTex; 19 pages, 3 figures. v2: references added, submitted to PRD

In recent years, a number of alternative theories of gravity have been proposed as possible resolutions of certain cosmological problems or as toy models for possible but heretofore unobserved effects. However, the implications of such theories for the stability structures such as stars have not been fully investigated. We use our "generalized variational principle", described in a previous work, to analyze the stability of static spherically symmetric solutions to spherically symmetric perturbations in three such alternative theories: Carroll et al.'s f(R) gravity, Jacobson & Mattingly's "Einstein-aether theory", and Bekenstein's TeVeS. We find that in the presence of matter, f(R) gravity is highly unstable; that the stability conditions for spherically symmetric curved vacuum Einstein-aether backgrounds are the same as those for linearized stability about flat spacetime, with one exceptional case; and that the ``kinetic terms'' of vacuum TeVeS are indefinite in a curved background, leading to an instability.
gr-qc/0703083 [abs, ps, pdf, other] :: Title: Hydrodynamic Flow as Congruence of Geodesic Lines in Riemannian Space-Time
Authors: L. V. Verozub
Comments: 5 pages, Latex. To appear in Int. Journ. of Mod. Phys. D, corrected typos in the references
Subj-class: General Relativity and Quantum Cosmology; Fluid Dynamics

It is shown that particles of perfect fluid in adiabatic processes move along geodesic lines of a Riemannian space-time.

Replacements

astro-ph/0507522 [abs, ps, pdf, other] :: Title: Microlensing of Central Images in Strong Gravitational Lens Systems
Authors: Gregory Dobler, Charles R. Keeton, Joachim Wambsganss
Comments: 12 pages; accepted in MNRAS; many new magnification maps and significantly expanded analysis of magnification map structure
Note: replaced with revised version Thu, 15 Mar 2007 23:09:48 GMT (908kb)
astro-ph/0606459 [abs, ps, pdf, other] :: Title: Primordial He4 Abundance Constrains the Possible Time Variation of the Higgs Vacuum Expectation Value
Authors: Josef M. Gassner, Harald Lesch
Comments: Accepted for publication in IJTP
Note: replaced with revised version Fri, 16 Mar 2007 11:14:00 GMT (12kb)
astro-ph/0608691 [abs, ps, pdf, other] :: Title: Non-Gaussianity of the density distribution in accelerating universes II:N-body simulations
Authors: Takayuki Tatekawa, Shuntaro Mizuno
Comments: 21 pages, 14 figures
Journal-ref: JCAP 0702 (2007) 015
Note: replaced with revised version Fri, 16 Mar 2007 08:41:09 GMT (88kb)
astro-ph/0609327 [abs, ps, pdf, other] :: Title: On the efficiency of particle acceleration by rotating magnetospheres in AGN
Authors: Zaza Osmanov, Andria D. Rogava, Gianluigi Bodo
Comments: 7 pages 5 figures
Note: replaced with revised version Fri, 16 Mar 2007 13:08:24 GMT (97kb)
astro-ph/0610505 [abs, ps, pdf, other] :: Title: X-ray emission properties of the old pulsar PSR B2224+65
Authors: C. Y. Hui, W. Becker
Comments: Accepted by A&A, 7 pages, 6 figures, 3 tables
Note: replaced with revised version Fri, 16 Mar 2007 11:47:04 GMT (201kb)
astro-ph/0611215 [abs, ps, pdf, other] :: Title: High resolution imaging of the anomalous flux-ratio gravitational lens system CLASS B2045+265: Dark or luminous satellites?
Authors: J. P. McKean (1, 2), L. V. E. Koopmans (3), C. E. Flack (1, 4), C. D. Fassnacht (1), D. Thompson (5), K. Matthews (5), R. D. Blandford (6), A. C. S. Readhead (7), B. T. Soifer (5) ((1) UC Davis, (2) MPIfR, (3) Kapteyn Institute, (4) Bemidji State, (5) Caltech Optical Observatories, (6) KIPAC, (7) Caltech Astronomy)
Comments: 10 pages, 6 figures, accepted for publication in MNRAS
Note: replaced with revised version Fri, 16 Mar 2007 14:17:48 GMT (211kb)
astro-ph/0611255 [abs, ps, pdf, other] :: Title: The cosmological behavior of Bekenstein's modified theory of gravity
Authors: F. Bourliot, P. G. Ferreira, D. F. Mota, C. Skordis
Comments: 10 pages, 8 figures, A few typos corrected in the text and figures. Version published in PRD
Journal-ref: Phys. Rev. D 75, 063508 (2007)
Note: replaced with revised version Fri, 16 Mar 2007 14:20:08 GMT (74kb)
astro-ph/0612664 [abs, ps, pdf, other] :: Title: Dead Zone Formation and Nonsteady Hyperaccretion in Collapsar Disks : A Possible Origin of Short-Term Variability in the Prompt Emission of Gamma-Ray Bursts
Authors: Youhei Masada, Norita Kawanaka, Takayoshi Sano, Kazunari Shibata
Comments: 11pages, 4figures. Accepted for publication in the Astrophysical Journal
Note: replaced with revised version Fri, 16 Mar 2007 07:12:46 GMT (145kb)
astro-ph/0703252 [abs, ps, pdf, other] :: Title: A tale of two cores: Triggered massive star formation in the bright-rimmed cloud SFO 75
Authors: J. S. Urquhart, M. A. Thompson, L. K. Morgan, M. R. Pestalozzi, Glenn J. White, D. N. Muna
Comments: 15 pages, 8 figures, some figures have been compressed, an uncompressed version of the paper is available upon request from the lead author. Accepted for publication in A&A
Note: replaced with revised version Fri, 16 Mar 2007 16:14:09 GMT (506kb)
astro-ph/0703295 [abs, ps, pdf, other] :: Title: An Infrared Study of the Large-scale Jet in Quasar PKS 1136-135
Authors: Y. Uchiyama, C. M. Urry, P. Coppi, J. Van Duyne, C. C. Cheung, R. M. Sambruna, T. Takahashi, F. Tavecchio, L. Maraschi
Comments: 9 pages, 5 figures (2 color figures), accepted for publication in ApJ; one typo in Table 1 is corrected
Note: replaced with revised version Fri, 16 Mar 2007 07:53:38 GMT (223kb)
astro-ph/0703356 [abs, ps, pdf, other] :: Title: Precision laboratory UV and IR wavelengths for cosmological and astrophysical applications
Authors: M. Aldenius (1), S. Johansson (1) ((1) Lund Observatory)
Comments: To appear in the proceedings of "Precision Spectroscopy in Astrophysics", Aveiro, Portugal, Sep. 2006, eds Pasquini et al., ESO Astrophysics Symposia. 2 pages, 2 figures
Note: replaced with revised version Fri, 16 Mar 2007 12:28:28 GMT (70kb)
astro-ph/0703401 [abs, ps, pdf, other] :: Title: Star Counts in the Globular Cluster Omega Centauri. I. Bright Stellar Components
Authors: V. Castellani, A. Calamida, G. Bono (OAR/INAF), P. B. Stetson (DAO/HIA-NRC), L. M. Freyhammer (Univ. of Central Lancashire), S. Degl'Innocenti, P. Prada Moroni (Univ. Pisa), M. Monelli (IAC), C. E. Corsi, M. Nonino (INAF), 10 coauthors
Comments: 54 pages, 17 figures,to be published in ApJ, see link at this http URL
Note: replaced with revised version Fri, 16 Mar 2007 09:15:29 GMT (1129kb)
astro-ph/0703407 [abs, ps, pdf, other] :: Title: Spatially resolved properties of the GRB 060505 host: implications for the nature of the progenitor
Authors: Christina C. Thoene, Johan P. U. Fynbo, Goeran Oestlin, Bo Milvang-Jensen, Klaas Wiersema, Daniele Malesani, Desiree Della Monica Ferreira, Javier Gorosabel, D. Alexander Kann, Darach Watson, Michal J. Michalowski, Jens Hjorth, Andrew S. Fruchter, Jesper Sollerman
Comments: 11 pages, 6 figures, submitted to ApJ; replacement: errors in headings and references corrected, Fig 5a and b switched
Note: replaced with revised version Fri, 16 Mar 2007 15:06:06 GMT (749kb)
gr-qc/0608016 [abs, ps, pdf, other] :: Title: The w = -1 crossing of the quintom model with slowly-varying potentials
Authors: M. Alimohammadi, H. Mohseni Sadjadi
Comments: 11 pages, LaTeX, some explanations are added and some of the calculations are transfered to the appendix, to be appeared in Phys. Letts. B
Note: replaced with revised version Fri, 16 Mar 2007 18:09:56 GMT (9kb)
gr-qc/0611086 [abs, ps, pdf, other] :: Title: Light's Bending Angle due to Black Holes: From the Photon Sphere to Infinity
Authors: Savitri V. Iyer, Arlie O. Petters
Comments: 22 pages, 5 figures
Note: replaced with revised version Thu, 15 Mar 2007 22:01:39 GMT (289kb)
hep-ph/0508018 [abs, ps, pdf, other] :: Title: Cosmological constant from gauge fields on extra dimensions
Authors: Hing-Tong Cho, Choon-Lin Ho (Tamkang Univ.), Kin-Wang Ng (Academia Sinica, Taiwan)
Comments: 5 pages, minor changes
Journal-ref: Phys. Lett. B 643 (2006) 71-75
Note: replaced with revised version Fri, 16 Mar 2007 06:25:11 GMT (10kb)

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hep-th/0703156 [abs, ps, pdf, other] :: Title: Relativistic Modified Newtonian Dynamics from String Theory?
Authors: Nick Mavromatos, Mairi Sakellariadou (King's College London)
Comments: 5 pages

We argue that TeVeS-like vector fields appear naturally in certain string theory backgrounds involving D0-branes, as a result of the recoil velocity field, expressing the interaction of neutrino string matter with point-like branes. Moreover, we argue in support of a possibly preferential r\^ole of neutrinos in inducing novel non-perturbative contributions to ``vacuum'' (dark) energy, in addition to their ordinary dark matter contribution.
math-ph/0703050 [abs, ps, pdf, other] :: Title: A fixed point theorem in gravitational lensing
Authors: Marcus C. Werner
Comments: 15 pages, submitted to the Journal of Mathematical Physics
Subj-class: Mathematical Physics

Topological invariants play an important r\^{o}le in the theory of gravitational lensing by constraining the image number. Furthermore, it is known that, for certain lens models, the image magnifications $\mu_i$ obey invariants of the form $\sum_i \mu_i=1$. In this paper, we show that this magnification invariant is the holomorphic Lefschetz number of a suitably defined complexified lensing map, and hence a topological invariant. We also provide a heat kernel proof of the holomorphic Lefschetz fixed point formula which is central to this argument, based on Kotake's proof of the more general Atiyah-Bott theorem. Finally, we present a new astronomically motivated lens model for which this invariant holds.
physics/0405038 [abs, ps, pdf, other] :: Title: An analytical treatment of the Clock Paradox in the framework of the Special and General Theories of Relativity
Authors: Lorenzo Iorio
Comments: LaTex2e, 19 pages, no tables, no figures. Rewritten version, it amends the previous one whose results about the treatment with General Relativity were wrong. References added. Eq. (55) corrected. More refined version. Comments and suggestions are warmly welcome
Subj-class: Classical Physics; General Physics
Journal-ref: Found.Phys.Lett. 18 (2005) 1-19

In this paper we treat the so called clock paradox in an analytical way by assuming that a constant and uniform force F of finite magnitude acts continuously on the moving clock along the direction of its motion assumed to be rectilinear. No inertial motion steps are considered. The rest clock is denoted as (1), the to-and-fro moving clock is (2), the inertial frame in which (1) is at rest in its origin and (2) is seen moving is I and, finally, the accelerated frame in which (2) is at rest in its origin and (1) moves forward and backward is A. We deal with the following questions: I) What is the effect of the finite force acting on (2) on the proper time intervals measured by the two clocks when they reunite? Does a differential aging between the two clocks occur, as it happens when inertial motion and infinite values of the accelerating force is considered? The Special Theory of Relativity is used in order to describe the hyperbolic motion of (2) in the frame I II) Is this effect an absolute one, i.e. does the accelerated observer A comoving with (2) obtain the same results as that in I, both qualitatively and quantitatively, as it is expected? We use the General Theory of Relativity in order to answer this question.
physics/0406139 [abs, ps, pdf, other] :: Title: On the Clock Paradox in the case of circular motion of the moving clock
Authors: Lorenzo Iorio
Comments: LaTex2e, 9 pages, no figures, no tables. It is the follow-on of the paper physics/0405038
Subj-class: Classical Physics; General Physics
Journal-ref: Eur. J. Phys. 26 (2005) 535

In this paper we deal analytically with a version of the so called clock paradox in which the moving clock performs a circular motion of constant radius. The rest clock is denoted as (1), the rotating clock is (2), the inertial frame in which (1) is at rest and (2) moves is I and, finally, the accelerated frame in which (2) is at rest and (1) rotates is A. By using the General Theory of Relativity in order to describe the motion of (1) as seen in A we will show the following features. I) A differential aging between (1) and (2) occurs at their reunion and it has an absolute character, i.e. the proper time interval measured by a given clock is the same both in I and in A. II)
From a quantitative point of view, the magnitude of the differential aging between (1) and (2) does depend on the kind of rotational motion performed by A. Indeed, if it is uniform there is no any tangential force in the direction of motion of (2) but only normal to it. In this case, the proper time interval reckoned by (2) does depend only on its constant velocity v=romega. On the contrary, if the rotational motion is uniformly accelerated, i.e. a constant force acts tangentially along the direction of motion, the proper time intervals $do depend$ on the angular acceleration alpha. III) Finally, in regard to the sign of the aging, the moving clock (2) measures always a $shorter$ interval of proper time with respect to (1).

Replacements

astro-ph/0605709 [abs, ps, pdf, other] :: Title: How Many Universes Do There Need To Be?
Authors: Douglas Scott, J.P. Zibin
Comments: 5 pages, 1 figure; received "honourable mention" in 2006 GRF essay contest; v2: improved analysis with newly available WMAP Monte Carlo Markov Chain; version published in IJMPD
Journal-ref: Int. J. Mod. Phys. D 15, 2229-2233 (2006)
Note: replaced with revised version Mon, 19 Mar 2007 15:15:21 GMT (8kb)
astro-ph/0608053 [abs, ps, pdf, other] :: Title: Sensitivity of an underwater Cerenkov km3 telescope to TeV neutrinos from Galactic Microquasars
Authors: C. Distefano, the NEMO Collaboration
Comments: 20 pages, 3 figures, accepted by Astroparticle Physics
Note: replaced with revised version Sat, 17 Mar 2007 20:00:05 GMT (187kb)
astro-ph/0608151 [abs, ps, pdf, other] :: Title: Exploring Halo Substructure with Giant Stars X. Extended Dark Matter or Tidal Disruption?: The Case for the Leo I Dwarf Spheroidal Galaxy
Authors: Sangmo Tony Sohn, S. R. Majewski, R. R. Muñoz, W. E. Kunkel, K. V. Johnston, J. C. Ostheimer, P. Guhathakurta, R. J. Patterson, M. H. Siegel, M. C. Cooper
Comments: Accepted by Astrophysical Journal on March 15, 2007; 49 pages, 26 figures, uses emulateapj.cls
Note: replaced with revised version Sat, 17 Mar 2007 05:12:23 GMT (657kb)
astro-ph/0608269 [abs, ps, pdf, other] :: Title: Evaluating Dark Energy Probes using Multi-Dimensional Dark Energy Parameters
Authors: Andreas Albrecht, Gary Bernstein
Comments: 6 Pages including 5 Figures. Changes from V1: Final version accepted for publication in PRD. The text has been edited for clarity and to better call out our main conclusions. Our conclusions and technical results are unchanged
Note: replaced with revised version Fri, 16 Mar 2007 20:51:42 GMT (28kb)
astro-ph/0608600 [abs, ps, pdf, other] :: Title: Gravitational Recoil from Binary Black Hole Mergers: the Close-Limit Approximation
Authors: Carlos F. Sopuerta, Nicolas Yunes, Pablo Laguna (Penn State)
Comments: RevTeX, 28 pages, 11 figures. Version that includes the corrections of an Erratum published in Phys. Rev. D
Journal-ref: Phys.Rev. D74 (2006) 124010; Phys.Rev-Erratum. D75 (2007) 069903
Note: replaced with revised version Mon, 19 Mar 2007 18:42:51 GMT (122kb)
astro-ph/0610685 [abs, ps, pdf, other] :: Title: The magnetar XTE J1810-197: variations in torque, radio flux density and pulse profile morphology
Authors: F. Camilo (1), I. Cognard (2), S. M. Ransom (3), J. P. Halpern (1), J. Reynolds (4), N. Zimmerman (1), E. V. Gotthelf (1), D. J. Helfand (1), P. Demorest (5), G. Theureau (2), D. C. Backer (5) ((1) Columbia, (2) CNRS, (3) NRAO, (4) ATNF, (5) Berkeley)
Comments: Accepted for publication in ApJ. Major changes with respect to submitted (v1) version: includes an additional 4 months of timing, flux and pulse shape data, and revised discussion
Note: replaced with revised version Mon, 19 Mar 2007 16:30:30 GMT (143kb)
astro-ph/0611321 [abs, ps, pdf, other] :: Title: Dynamics of Linear Perturbations in f(R) Gravity
Authors: Rachel Bean, David Bernat, Levon Pogosian, Alessandra Silvestri, Mark Trodden
Comments: 15 pages, 4 figures
Journal-ref: Phys. Rev. D 75, 064020 (2007)
Note: replaced with revised version Mon, 19 Mar 2007 09:44:38 GMT (97kb)
astro-ph/0612409 [abs, ps, pdf, other] :: Title: Strongly Variable z=1.48 FeII and MgII Absorption in the Spectra of z=4.05 GRB 060206
Authors: H. Hao, K. Z. Stanek, A. Dobrzycki, T. Matheson, M. C. Bentz, J. Kuraszkiewicz, P. M. Garnavich, J. C. Howk, M. L. Calkins, G. Worthey, M. Modjaz, J. Serven
Comments: 13 pages, 3 figures, 1 table; ApJ Letters, accepted
Note: replaced with revised version Mon, 19 Mar 2007 15:56:15 GMT (39kb)
astro-ph/0701752 [abs, ps, pdf, other] :: Title: 21 cm radiation - a new probe of variation in the fine structure constant
Authors: Rishi Khatri, Benjamin D. Wandelt
Comments: 5 pages, 5 figures, published version + extra figures
Journal-ref: Phys. Rev. Lett. 98 111301 (2007)
Note: replaced with revised version Sat, 17 Mar 2007 19:55:41 GMT (48kb)
astro-ph/0701806 [abs, ps, pdf, other] :: Title: Topology and existence of three-dimensional kinematic dynamos
Authors: L. C. Garcia de Andrade
Comments: dft-if-uerj
Subj-class: Astrophysics; Mathematical Physics; Fluid Dynamics
Note: replaced with revised version Sat, 17 Mar 2007 11:44:21 GMT (5kb)
astro-ph/0702755 [abs, ps, pdf, other] :: Title: Central stars of planetary nebulae in the Galactic bulge
Authors: P. J. N. Hultzsch, J. Puls, R. H. Mendez, A. W. A. Pauldrach, R.-P. Kudritzki, T. L. Hoffmann, J. K. McCarthy
Comments: 22 pages, accepted for publication by A&A
Note: replaced with revised version Mon, 19 Mar 2007 11:15:49 GMT (309kb)
astro-ph/0703245 [abs, ps, pdf, other] :: Title: Natural Phantom Dark Energy, Wiggling Hubble Parameter $H(z)$ and Direct $H(z)$ Data
Authors: Hongsheng Zhang, Zong-Hong Zhu
Comments: 6 pages, 2 figures, revised figures, conclusions not changed
Note: replaced with revised version Sat, 17 Mar 2007 03:18:31 GMT (26kb)
astro-ph/0703376 [abs, ps, pdf, other] :: Title: Bimodal Infrared Colors of the M87 Globular Cluster System: Peaks in the Metallicity Distribution
Authors: Arunav Kundu, Stephen E. Zepf
Comments: Accepted for publication in ApJ Letters. 5 pages, 4 figs. Version 2 is identical to version 1
Note: replaced with revised version Mon, 19 Mar 2007 16:14:23 GMT (170kb)
gr-qc/0703034 [abs, ps, pdf, other] :: Title: Post-Newtonian Approximations, Compact Binaries, and Strong-Field Tests of Gravity
Authors: Luc Blanchet, L P Grishchuk, Gerhard Schaefer
Comments: 14 pages, summary of PPN1 and PPN2 parallel sessions at MG11 (Berlin, August,2006); v.2: improvements in text, additional references, submitted to Proceedings
Note: replaced with revised version Sun, 18 Mar 2007 11:08:14 GMT (27kb)
hep-ph/0701043 [abs, ps, pdf, other] :: Title: Bulk black hole, escaping photons, and bounds on violations of Lorentz invariance
Authors: S. Khlebnikov
Comments: 13 pages; v3: minor changes, to be published in Phys. Rev. D
Note: replaced with revised version Mon, 19 Mar 2007 16:25:37 GMT (12kb)
hep-ph/0703122 [abs, ps, pdf, other] :: Title: Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
Authors: Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi
Comments: 9 pages, 3 figures
Note: replaced with revised version Mon, 19 Mar 2007 11:25:59 GMT (452kb)
nlin.CD/0609061 [abs, ps, pdf, other] :: Title: "Stokes' Second Problem in High Frequency Limit. Application to Micro (Nano)- Scillators
Authors: V. Yakhot, C. Colosqui
Subj-class: Chaotic Dynamics; Soft Condensed Matter; Fluid Dynamics
Note: replaced with revised version Mon, 19 Mar 2007 17:39:30 GMT (28kb)

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cond-mat/0703488 [abs, ps, pdf, other] :: Title: Linear shear flow past a hemispherical droplet adhering to a solid surface
Authors: K. Sugiyama, M. Sbragaglia
Comments: 10 figures
Subj-class: Soft Condensed Matter; Fluid Dynamics; Exactly Solvable and Integrable Systems

In this paper we investigate the properties of a three dimensional Stokes problem when a hemispherical droplet is introduced into a linear shear flow past a flat plane. The exact solution is computed as a function of the viscosity ratio between the droplet and the fluid and generalizes the solution for the hemispherical no-slip bump given in an earlier paper by Price (1985), here recovered in the limiting case of highly viscous droplet. Several expressions including the torque and the force acting on the drop will be considered as well as the role of the deformations on the surface for finite Capillary numbers.
physics/0703176 [abs, pdf] :: Title: Imaging with the invisible light
Authors: R. Bellazzini, G. Spandre, A. Brez, M. Minuti, L. Baldini, L. Latronico, M.M. Massai, N. Omodei, M. Pesce-Rollins, C Sgró, M. Razzano, M. Pinchera, J. Bregeon, M. Kuss, A. Braem
Comments: 6 pages, 14 figures, presented at the 11th Vienna Conference on Instrumentation VIC 2007, submitted to Nuclear Instruments and Methods A
Subj-class: Instrumentation and Detectors; Medical Physics

We describe a UV photo-detector with single photon(electron) counting and imaging capability. It is based on a CsI photocathode, a GEM charge multiplier and a self triggering CMOS analog pixel chip with 105k pixels at 50 micron pitch. The single photoelectron produced by the absorption of a UV photon is drifted to and multiplied inside a single GEM hole. The coordinates of the GEM avalanche are reconstructed with high accuracy (4 micron rms) by the pixel chip. As a result the map of the GEM holes, arranged on a triangular pattern at 50micron pitch, is finely imaged.

Replacements

astro-ph/0603478 [abs, ps, pdf, other] :: Title: Observations of Mkn 421 with the MAGIC Telescope
Authors: J. Albert et al. (MAGIC Collaboration)
Comments: ApJ accepted, 14 pages, 16 figures, 4 tables. updated figures 10, 11, and 12 and one reference
Note: replaced with revised version Tue, 20 Mar 2007 18:43:09 GMT (109kb)
astro-ph/0605546 [abs, ps, pdf, other] :: Title: The multi-frequency angular power spectrum of the epoch of reionization 21 cm signal
Authors: Kanan K. Datta, T. Roy Choudhury, Somnath Bharadwaj
Comments: Accepted for publication in MNRAS. Revised to match the accepted version
Note: replaced with revised version Tue, 20 Mar 2007 15:28:40 GMT (168kb)
astro-ph/0608253 [abs, ps, pdf, other] :: Title: Hard X-ray emission of the Earth's atmosphere: Monte Carlo simulations
Authors: S. Sazonov, E. Churazov, R. Sunyaev, M. Revnivtsev
Comments: 12 pages, 16 figures, MNRAS accepted
Note: replaced with revised version Tue, 20 Mar 2007 16:41:30 GMT (165kb)
astro-ph/0609297 [abs, ps, pdf, other] :: Title: On the inconsistency between the black hole mass function inferred from M_bh-sigma and M_bh-L correlation
Authors: E. Tundo, M. Bernardi, J. B. Hyde, R. K. Sheth, A. Pizzella
Comments: 9 pages, 7 figures. ApJ in press. Expanded comparison with literature. Reference removed as required by Journal
Note: replaced with revised version Tue, 20 Mar 2007 15:31:52 GMT (98kb)
astro-ph/0610402 [abs, ps, pdf, other] :: Title: Brane inflation without slow-roll
Authors: Tomohiro Matsuda
Comments: 21 pages, 2 figures, added an appendix, accepted for publication in JHEP
Note: replaced with revised version Tue, 20 Mar 2007 03:40:03 GMT (38kb)
astro-ph/0610700 [abs, ps, pdf, other] :: Title: Pointer states for primordial fluctuations in inflationary cosmology
Authors: C. Kiefer, I. Lohmar, D. Polarski, A. A. Starobinsky
Comments: 32 pages, 2 figures, matches published version: discussion expanded, references added, conclusions unchanged
Journal-ref: Class. Quantum Grav. 24 (2007) 1699-1718
Note: replaced with revised version Tue, 20 Mar 2007 08:58:29 GMT (30kb)
astro-ph/0612409 [abs, ps, pdf, other] :: Title: Strongly Variable z=1.48 FeII and MgII Absorption in the Spectra of z=4.05 GRB 060206
Authors: H. Hao, K. Z. Stanek, A. Dobrzycki, T. Matheson, M. C. Bentz, J. Kuraszkiewicz, P. M. Garnavich, J. C. Howk, M. L. Calkins, G. Worthey, M. Modjaz, J. Serven
Comments: 14 pages, 3 figures, 1 table; ApJ Letters, accepted
Note: replaced with revised version Tue, 20 Mar 2007 18:22:51 GMT (39kb)
astro-ph/0701615 [abs, ps, pdf, other] :: Title: The luminosity bias relation from filaments in the Sloan Digital Sky Survey Data Release Four
Authors: Biswajit Pandey, Somnath Bharadwaj
Comments: Published in MNRAS Letters, accepted version, one reference added, 5 pages, 3 figures and 2 tables
Note: replaced with revised version Tue, 20 Mar 2007 10:42:49 GMT (43kb)
astro-ph/0702177 [abs, ps, pdf, other] :: Title: Coherence and Intermittency of Electron Density in Small-Scale Interstellar Turbulence
Authors: P.W. Terry, K.W. Smith
Comments: 31 pages, 3 figures. Replacement contains short additions to Secs. 6 and 7
Note: replaced with revised version Mon, 19 Mar 2007 21:29:02 GMT (149kb)
astro-ph/0703458 [abs, ps, pdf, other] :: Title: Gamma-ray burst host galaxies and the link to star-formation
Authors: J. P. U. Fynbo, J. Hjorth, D. Malesani, J. Sollerman, D. Watson, P Jakobsson, J. Gorosabel, A. O. Jaunsen
Comments: 9 pages, 3 figures. To appear in the proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity, eds. H. Kleinert, R. T. Jantzen & R. Ruffini, World Scientific, Singapore, 2007
Note: replaced with revised version Tue, 20 Mar 2007 12:03:38 GMT (279kb)
gr-qc/0605044 [abs, ps, pdf, other] :: Title: Eigenmode frequency distribution of rapidly rotating neutron stars
Authors: Stratos Boutloukos, Hans-Peter Nollert
Comments: 10 pages, 6 figures, added references, improved wording, published in Physical Review D
Journal-ref: Phys.Rev. D75 (2007) 043007
Note: replaced with revised version Tue, 20 Mar 2007 19:59:51 GMT (69kb)
physics/0501084 [abs, ps, pdf, other] :: Title: Charged Particle Motion in a Highly Ionized Plasma
Authors: Lowell S. Brown, Dean L. Preston, Robert L. Singleton Jr
Comments: Comments: Published in Phys. Rep. 410/4 (2005) 237; RevTeX, 111 Pages, 17 Figures; Transcription error corrected in temperature equilibration rate (3.61) and (12.44) which replaces \gamma-2 by \gamma-1
Subj-class: Plasma Physics
Journal-ref: Phys.Rept. 410 (2005) 237-333
Note: replaced with revised version Tue, 20 Mar 2007 14:14:16 GMT (127kb)

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Cross-listings

gr-qc/0703093 [abs, ps, pdf, other] :: Title: Numerical simulations of gravitational collapse in Einstein-aether theory
Authors: David Garfinkle, Christopher Eling, Ted Jacobson
Comments: 9 pages, 7 figures

We study gravitational collapse of a spherically symmetric scalar field in Einstein-aether theory (general relativity coupled to a dynamical unit timelike vector field). The initial value formulation is developed, and numerical simulations are performed. The collapse produces regular, stationary black holes, as long as the aether coupling constants are not too large. For larger couplings a finite area singularity occurs. These results are shown to be consistent with the stationary solutions found previously.
gr-qc/0703096 [abs, ps, pdf, other] :: Title: Holographic Foam, Dark Energy and Infinite Statistics
Authors: Y. Jack Ng
Comments: 11 pages, LaTeX

Quantum fluctuations of spacetime give rise to quantum foam. Consistency with black hole physics then arguably dictates that the foam is of holographic type. Applied to cosmology, the holographic model requires the existence of unconventional (dark) energy/matter. We argue that dark energy is composed of an enormous number of inert ``particles'' of extremely long wavelength. Moreover, these particles necessarily obey infinite statistics in which all representations of the particle permutation group can occur. By our estimate, for every boson or fermion in the universe in the present cosmic era, there could be as many as $\sim 10^{31}$ "particles" obeying infinite statistics.
hep-ph/0703217 [abs, ps, pdf, other] :: Title: Determining the WIMP mass using direct detection experiments
Authors: Anne M Green
Comments: 17 pages, 8 figures

We study the accuracy with which the WIMP mass could be determined by a superCDMS-like direct detection experiment, given optimistic assumptions about the detector set-up and WIMP properties. We consider WIMPs with an interaction cross-section of sigma_p = 10^{-7} pb (just below current exclusion limits) and assume, initially, that the local WIMP velocity distribution and density are known and that the experiment has zero background. For light WIMPs (mass significantly less than that of the target nuclei) small variations in the WIMP mass lead to significant changes in the energy spectrum. Conversely for heavy WIMPs the energy spectrum depends only weakly on the WIMP mass. Consequently it will be far easier to measure the WIMP mass if it is light than if it is heavy. With exposures of E= 3 x 10^{3}, 3 x 10^{4} and 3 x 10^{5} kg day (corresponding, roughly, to the three proposed phases of SuperCDMS) it will be possible, given the optimistic assumptions mentioned above, to measure the mass of a light WIMP with an accuracy of roughly 25%, 15% and 2.5% respectively. These numbers increase with increasing WIMP mass, and for heavy WIMPs, m_{\chi} > O(500 GeV), even with a large exposure it will only be possible to place a lower limit on the mass. Finally we discuss the validity of the various assumptions made, in particular regarding the smoothness of the small scale WIMP distribution, and the consequences if these assumptions are not valid.
nlin.CD/0703037 [abs, ps, pdf, other] :: Title: Studying the global dynamics of conservative dynamical systems using the SALI chaos detection method
Authors: T. Manos, Ch. Skokos, E. Athanassoula, T. Bountis
Comments: 9 pages, 6 figures, proceedings of the 19th Panhellenic Conference/Summer School "Nonlinear Science and Comlexity" Thessaloniki, Greece (Minor typographical errors corrected)
Subj-class: Chaotic Dynamics

We use the Smaller ALignment Index (SALI) method of chaos detection, to study the global dynamics of conservative dynamical systems described by differential or difference equations. In particular, we consider the well--known 2 and 4--dimensional symplectic standard map, as well as an autonomous Hamiltonian system of 2 and 3 degrees of freedom describing the motion of a star in models of barred galaxies. The application of SALI helped us to compute rapidly and accurately the percentage of regular and chaotic motion for particular values of the parameters of these systems. We were also able to perform a computationally efficient determination of the dependence of these percentages on the variation of several parameters of the studied models.

Replacements

astro-ph/0608405 [abs, ps, pdf, other] :: Title: CMB Anomalies from Relic Anisotropy
Authors: A. E. Gumrukcuoglu, Carlo R. Contaldi, Marco Peloso
Comments: 6 pages, 2 .ps figures
Note: replaced with revised version Wed, 21 Mar 2007 14:58:04 GMT (50kb)
astro-ph/0610542 [abs, pdf] :: Title: A Compilation of Redshifts for Compact Groups of Galaxies
Authors: G.C. Baiesi Pillastrini
Comments: 116 pages. An unpublished list of 4,217 redshifts for CGs obtained from the SDSS Data released 4 and provided by Deng et al.(2006)has been added. The updated elesctronic redshift compilation is provided by email request to the author
Note: replaced with revised version Wed, 21 Mar 2007 08:33:46 GMT (278kb)
astro-ph/0610649 [abs, ps, pdf, other] :: Title: A study of the population of LMXBs in the bulge of M31
Authors: Rasmus Voss, Marat Gilfanov
Comments: 15 pages, accepted for publication in A&A revised version includes a comparison of the LF of LMXBs in globular clusters in M31 and in the Galaxy
Note: replaced with revised version Wed, 21 Mar 2007 17:59:32 GMT (62kb)
astro-ph/0610756 [abs, ps, pdf, other] :: Title: Is 6-Li in metal-poor halo stars produced in situ by solar-like flares?
Authors: V. Tatischeff, J.-P. Thibaud
Comments: 11 pages, 4 figures. Final version accepted for publication in Astronomy & Astrophysics
Note: replaced with revised version Wed, 21 Mar 2007 18:05:47 GMT (63kb)
astro-ph/0612582 [abs, ps, pdf, other] :: Title: Nucleosynthesis-relevant conditions in neutrino-driven supernova outflows. I. Spherically symmetric hydrodynamic simulations
Authors: A. Arcones, H.-Th. Janka, L. Scheck (MPI for Astrophysics, Garching)
Comments: 23 pages, 13 figures; discussion of results revised and new Sect.4 added; accepted by Astronomy & Astrophysics
Note: replaced with revised version Wed, 21 Mar 2007 19:25:23 GMT (480kb)
astro-ph/0612642 [abs, ps, pdf, other] :: Title: Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets
Authors: Jingfei Zhang, Xin Zhang, Hongya Liu
Comments: 8 pages, 3 figures; references added; accepted for publication in Mod. Phys. Lett. A
Note: replaced with revised version Wed, 21 Mar 2007 04:14:41 GMT (56kb)
astro-ph/0702746 [abs, ps, pdf, other] :: Title: The low frequency radio emission and spectrum of the extended SNR W44: new VLA observations at 74 and 324 MHz
Authors: G. Castelletti, G. Dubner, C. Brogan, N.E. Kassim
Comments: After language edited, 16 pages, 12 figures (3 in color). Figures degraded to reduce file size. Accepted 01/03/2007 for publicaion in A&A
Note: replaced with revised version Wed, 21 Mar 2007 19:10:58 GMT (1037kb)
astro-ph/0703465 [abs, ps, pdf, other] :: Title: Shock oscillation model for QPOs in stellar-mass and supermassive black holes
Authors: T.Okuda, V.Teresi, D.Molteni
Comments: 8pages, 14figures, accepted for publication in MNRAS
Note: replaced with revised version Wed, 21 Mar 2007 00:34:55 GMT (913kb)
gr-qc/0702088 [abs, ps, pdf, other] :: Title: Testing the Metric-Field Equations of Gravitation
Authors: L. V. Verozub
Comments: Latex, 6 pages, 7 figures. Proc. of the EPS-13 Conference "Beyond Einstein - Physics for the 21st Century", 2005, Bern, Switzerland (ESA, SP-637)
Note: replaced with revised version Wed, 21 Mar 2007 08:54:35 GMT (121kb)
hep-th/0612138 [abs, ps, pdf, other] :: Title: On the One Loop Corrections to Inflation II: The Consistency Relation
Authors: Martin S. Sloth
Comments: 21 pages, 4 figures. V2: IR approximation corrected. References added
Note: replaced with revised version Wed, 21 Mar 2007 08:43:30 GMT (77kb)
hep-th/0703070 [abs, ps, pdf, other] :: Title: Reheating, Dark Matter and Baryon Asymmetry: a Triple Coincidence in Inflationary Models
Authors: Stephon Alexander, Peter Mészáros
Comments: 5 pages, 1 figure
Note: replaced with revised version Wed, 21 Mar 2007 06:01:44 GMT (14kb)

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Cross-listings

cond-mat/0703547 [abs, pdf] :: Title: Hartree-Fock variational bounds for ground state energy of chargeless fermions with finite magnetic moment in presence of a hard core potential:A stable ferromagnetic state
Authors: Sudhanshu S. Jha, S. D. Mahanti
Comments: A shorter version of this paper will appear in Pramana - Journal of Physics
Subj-class: Strongly Correlated Electrons; Other; Statistical Mechanics

We use different types of determinantal Hartree-Fock (HF) wave functions to calculate variational bounds for the ground state energy of spin-half fermions in volume V_0, with mass m, electric charge zero, and magnetic moment mu, which are interacting through long range magnetic dipole-dipole interaction. We find that at high densities when the average inter particle distance r_0 becomes small compared to the magnetic length r_m, a ferromagnetic state with spheroidal occupation function, involving quadrupolar deformation, gives a lower energy compared to the variational energy for the uniform paramagnetic state. This HF variational bound to the ground state energy turns out to have a lower energy than our earlier calculation in which instead of a determinantal wavefunction we had used a positive semi-definite single particle density matrix operator whose eigenvalues, having quadrupolar deformation, were allowed to take any value from 0 to 1. This system is of course still unstable towards infinite density collapse, but we show here explicitly that a suitable short range repulsive (hard core) interaction of strength U_0 and range a can stop this collapse.The existence of a stable high density ferromagnetic state with spheroidal occupation function is possible as long as the ratio of hard-core and magnetic dipole coupling constants is not very small compared to 1.
gr-qc/0702055 [abs, pdf, other] :: Title: Cosmic String Structure at the Gravitational Radiation Scale
Authors: Joseph Polchinski, Jorge V. Rocha
Comments: 15 pages, 1 figure. v2, v3: small corrections, updated references

We use our model of the small scale structure on cosmic strings to develop further the result of Siemens, Olum, and Vilenkin that the gravitational radiation length scale on cosmic strings is smaller than the previously assumed $\Gamma G\mu t$. We discuss some of the properties of cosmic string loops at this cutoff scale, and we argue that recent network simulations point to two populations of cosmic string loops, one near the horizon scale and one near the gravitational radiation cutoff.
gr-qc/0703106 [abs, ps, pdf, other] :: Title: The Spatial Averaging Limit of Covariant Macroscopic Gravity - Scalar Corrections to the Cosmological Equations
Authors: Aseem Paranjape, T. P. Singh
Comments: 24 pages, no figures, revtex4

It is known that any explicit averaging scheme of the type essential for describing the large scale behaviour of the Universe, must necessarily yield corrections to the Einstein equations applied in the Cosmological setting. The question of whether or not the resulting corrections to the Einstein equations are significant, is still a subject of debate, partly due to possible ambiguities in the averaging schemes available. In particular, it has been argued in the literature that the effects of averaging could be gauge artifacts. We apply the formalism of Zalaletdinov's Macroscopic Gravity (MG) which is a fully covariant and nonperturbative averaging scheme, in an attempt to construct gauge independent corrections to the standard Friedmann-Lemaitre-Robertson-Walker (FLRW) equations. We find that whereas one cannot escape the problem of dependence on \emph{one} gauge choice -- which is inherent in the assumption of large scale homogeneity and isotropy -- it is however possible to construct \emph{spacetime scalar} corrections to the standard FLRW equations. This partially addresses the criticism concerning the corrections being gauge artifacts. For a particular initial choice of gauge which simplifies the formalism, we explicitly construct these scalars in terms of the underlying inhomogeneous geometry, and incidentally demonstrate that the formal structure of the corrections with this gauge choice is identical to that of analogous corrections derived by Buchert in the context of spatial averaging of scalars.
gr-qc/0703109 [abs, ps, pdf, other] :: Title: Periodic Gravitational Waves From Small Cosmic String Loops
Authors: Florian Dubath, Jorge V. Rocha
Comments: 1+15 pages, 7 figures

We consider a population of small, high-velocity cosmic string loops. We assume the typical length of these loops is determined by the gravitational radiation scale and use the results of \cite{Polchinski:2007rg} which pointed out their highly relativistic nature. A study of the gravitational wave emission from such a population is carried out. The large Lorentz boost involved causes the lowest harmonics of the loops to fall within the frequency band of the LIGO detector. Due to this feature the gravitational waves emitted by such loops can be detected in a periodic search rather than in burst or stochastic analysis.
It is shown that, for interesting values of the string tension ($10^{-10}\lsim G\mu\lsim 10^{-8}$) the detector can observe loops at reasonably high redshifts and that detection is, in principle, possible. We compute the number of expected observations produced by such a process. For a 10 hour search we find that this number is of order $O(10^{-4})$. This is a consequence of the low effective number density of the loops traveling along the line of sight. However, small probabilities of reconnection and longer observation times can improve the result.
hep-th/0701002 [abs, ps, pdf, other] :: Title: Hawking radiation from rotating black holes in anti-de Sitter spaces via gauge and gravitational anomalies
Authors: Qing-Quan Jiang, Shuang-Qing Wu
Comments: 15 pages

Robinson-Wilczek's recent work, which treats Hawking radiation as a compensating flux to cancel gravitational anomaly at the horizon of a Schwarzschild-type black hole, is extended to study Hawking radiation of rotating black holes in anti-de Sitter spaces, especially that in dragging coordinate system, via gauge and gravitational anomalies. The results show that in order to restore gauge invariance and general coordinate covariance at the quantum level in the effective field theory, the charge and energy flux by requiring to cancel gauge and gravitational anomalies at the horizon, must have a form equivalent to that of a $(1+1)$-dimensional blackbody radiation at Hawking temperature with an appropriate chemical potential.
hep-th/0703053 [abs, ps, pdf, other] :: Title: One-loop quantum corrections to cosmological scalar field potentials
Authors: Alexandre Arbey, Farvah Mahmoudi
Comments: 11 pages, 1 figure, accepted for publication in Phys. Rev. D
Journal-ref: Phys. Rev. D 75, 063513 (2007)

We study the loop corrections to potentials of complex or coupled real scalar fields used in cosmology to account for dark energy, dark matter or dark fluid. We show that the SUGRA quintessence and dark matter scalar field potentials are stable against the quantum fluctuations, and we propose solutions to the instability of the potentials of coupled quintessence and dark fluid scalar fields. We also find that a coupling to fermions is very restricted, unless this coupling has a structure which already exists in the scalar field potential or which can be compensated by higher order corrections. Finally, we study the influence of the curvature and kinetic term corrections.

Replacements

astro-ph/0604569 [abs, ps, pdf, other] :: Title: Curvature perturbation from symmetry breaking the end of inflation
Authors: Laila Alabidi, David Lyth
Comments: minor corrections, do not affect final results, post journal publication version. JCAP format (4p)
Journal-ref: JCAP 0608 (2006) 006
Note: replaced with revised version Thu, 22 Mar 2007 16:17:55 GMT (347kb)
astro-ph/0606001 [abs, ps, pdf, other] :: Title: Estimators for local non-Gaussianities
Authors: Paolo Creminelli (ICTP, Trieste), Leonardo Senatore (MIT), Matias Zaldarriaga (Harvard-Smithsonian Ctr. Astrophys. & Harvard U., Phys. Dept.)
Comments: 26 pages. v2: added comments about the approximations used, published JCAP version
Note: replaced with revised version Thu, 22 Mar 2007 09:41:51 GMT (28kb)
astro-ph/0607607 [abs, ps, pdf, other] :: Title: Accurate Extra-Galactic Distances and Dark Energy: Anchoring the Distance Scale with Rotational Parallaxes
Authors: Rob P. Olling
Comments: 20 pages, 2 figures. Substantially expanded version. Now includes review of methods capable of achieving unbiased 1% extra-galactic distances. Re-submitted to MNRAS
Note: replaced with revised version Thu, 22 Mar 2007 15:06:47 GMT (58kb)
astro-ph/0611375 [abs, ps, pdf, other] :: Title: RXTE observations of the Low/Hard State X-ray Outburst of the new x-ray transient SWIFT J1753.5-0127
Authors: M.C. Ramadevi, S. Seetha
Comments: Accepted for publication in MNRAS; some sections are added as per referee's suggestions; 7 figures and 8 pages
Note: replaced with revised version Thu, 22 Mar 2007 08:36:28 GMT (75kb)
astro-ph/0611518 [abs, ps, pdf, other] :: Title: The Axis of Evil revisited
Authors: Kate Land, Joao Magueijo
Comments: 7 pages, accepted to MNRAS
Note: replaced with revised version Wed, 21 Mar 2007 20:02:25 GMT (326kb)
astro-ph/0612073 [abs, ps, pdf, other] :: Title: Consequences of Triaxiality for Gravitational Wave Recoil of black holes
Authors: Alessandro Vicari (1), Roberto Capuzzo-Dolcetta (1), David Merritt (2) ((1) Dipartimento di Fisica, Universita' di Roma La Sapienza, Roma, Italy, (2) Department of Physics, Rochester Institute of Technology, Rochester, NY USA)
Comments: 28 pages, including 13 eps figures. Submitted to ApJ
Note: replaced with revised version Thu, 22 Mar 2007 17:37:36 GMT (113kb)
astro-ph/0612254 [abs, ps, pdf, other] :: Title: Local radiative feedback in the formation of the first protogalaxies
Authors: Jarrett L. Johnson, Thomas H. Greif, Volker Bromm
Comments: 29 pages, 7 figures; ApJ submitted; revised to reflect referee's comments, improved treatment of molecule dissociation
Note: replaced with revised version Wed, 21 Mar 2007 22:51:54 GMT (1981kb)
astro-ph/0701132 [abs, ps, pdf, other] :: Title: Another look at the Pioneer anomaly
Authors: Erhard Scholz
Comments: 12 pages
Note: replaced with revised version Thu, 22 Mar 2007 15:36:55 GMT (118kb)
astro-ph/0701462 [abs, ps, pdf, other] :: Title: Current sheet formation and non-ideal behaviour at three-dimensional magnetic null points
Authors: D. I. Pontin, A. Bhattacharjee, K. Galsgaard
Comments: to appear in Phys. Plasmas. A version with higher quality figures can be found at this http URL In this replacement version, typos have been corrected, and in addition references and some further discussion added
Subj-class: Astrophysics; Plasma Physics
Note: replaced with revised version Thu, 22 Mar 2007 18:04:26 GMT (1201kb)
astro-ph/0702537 [abs, ps, pdf, other] :: Title: Very different X-ray to optical column density ratios in gamma-ray burst afterglows: ionisation in GRB environments
Authors: D. Watson, J. Hjorth, J. P. U. Fynbo (DARK, NBI, U. Copenhagen), P. Jakobsson (U. Herts.), S. Foley (UCD), J. Sollerman (DARK, NBI, U. Copenhagen) R. A. M. J. Wijers (U. Amsterdam)
Comments: Accepted for publication in ApJL. Missing author added
Note: replaced with revised version Thu, 22 Mar 2007 11:00:18 GMT (18kb)
astro-ph/0703476 [abs, ps, pdf, other] :: Title: Mass radius scaling near the Chandrasekhar Limit
Authors: Sayan Chakraborti
Comments: 2 pages, 1 figure, minor revisions
Note: replaced with revised version Thu, 22 Mar 2007 12:16:20 GMT (12kb)
astro-ph/0703510 [abs, ps, pdf, other] :: Title: Multi-object Spectroscopy of Young Star Clusters in NGC 4676
Authors: Li-Hsin Chien, Joshua E. Barnes, Lisa J. Kewley, Kenneth C. Chambers
Comments: 4 pages, 1 figure, accepted for publication in ApJ Letter
Note: replaced with revised version Thu, 22 Mar 2007 00:26:12 GMT (223kb)
astro-ph/0703553 [abs, ps, pdf, other] :: Title: The Representative XMM-Newton Cluster Structure Survey (REXCESS) of an X-ray Luminosity Selected Galaxy Cluster Sample
Authors: H. Boehringer (MPE Garching), P. Schuecker, G.W. Pratt, M. Arnaud, T.J. Ponman, J.H. Croston, S. Borgani, R.G. Bower, U.G. Briel, C.A. Collins, M. Donahue, W.R. Forman, A. Finoguenov, M.J. Geller, L. Guzzo, J.P. Henry, R. Kneissl, J.J. Mohr, K. Matsushita, C.R. Mullis, T. Ohashi, K. Pedersen, D. Pierini, H. Quintana, S. Raychaudhury, T.H. Reiprich, A.K. Romer, P. Rosati, K. Sabirli, R.F. Temple, P.T.P. Viana, A. Vikhlinin, G.M. Voit, Y.-Y. Zhang
Comments: 17 pages, 17 figures; to appear in A&A. A pdf version with full-quality figures can be found at this ftp URL
Note: replaced with revised version Thu, 22 Mar 2007 15:28:38 GMT (933kb)
gr-qc/0609097 [abs, ps, pdf, other] :: Title: A comment on the paper "On the orbit of the LARES satellite", by I. Ciufolini
Authors: Lorenzo Iorio
Comments: LaTex, 7 pages, no figures, 1 table. It refers to gr-qc/0609081 by I. Ciufolini. Quotation from such paper added: in it Ciufolini explicitly claims that his nearly polar LARES would be sufficient, without using LAGEOS and LAGEOS II. Typos corrected. Reference added. Style improved. Clarifications added. To appear in Planetary and Space Science
Subj-class: General Relativity and Quantum Cosmology; Geophysics; Space Physics
Note: replaced with revised version Wed, 21 Mar 2007 23:10:24 GMT (6kb)
gr-qc/0702087 [abs, ps, pdf, other] :: Title: Renormalization-group running cosmologies and the generalized second law
Authors: R. Horvat
Comments: 8 pages, final version to appear in Phys. Lett. B
Note: replaced with revised version Thu, 22 Mar 2007 09:14:32 GMT (8kb)
hep-ph/0608344 [abs, ps, pdf, other] :: Title: Thermal Gravitino Production and Collider Tests of Leptogenesis
Authors: Josef Pradler, Frank Daniel Steffen
Comments: 5 pages, 3 figures, revised version matches published version
Journal-ref: Phys.Rev. D75 (2007) 023509
Note: replaced with revised version Thu, 22 Mar 2007 14:30:38 GMT (60kb)
hep-ph/0703014 [abs, ps, pdf, other] :: Title: Some Comments on an MeV Cold Dark Matter Scenario
Authors: Chen Jacoby, Shmuel Nussinov
Comments: 12 pages, 2 figures. Added some remarks regarding a more stringent mass bound. References added, some typos corrected
Note: replaced with revised version Thu, 22 Mar 2007 13:57:17 GMT (16kb)
hep-th/0702121 [abs, ps, pdf, other] :: Title: Dark energy, inflation and the cosmic coincidence problem
Authors: Hyeong-Chan Kim, Jae-Weon Lee, Jungjai Lee
Comments: 7 pages, 3 figures, revtex, title changed
Note: replaced with revised version Thu, 22 Mar 2007 14:21:13 GMT (123kb)

For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
-----------------------------------------------------------------------------
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For a list of archive mirror sites, see this http URL
-----------------------------------------------------------------------------
Third-party submissions cause excessive problems.
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E-mail submissions have been discontinued in favor of better support for
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