Cross-listings

cond-mat/0701061 [abs, ps, pdf, other] :: Title: Heat Capacity in Magnetic and Electric Fields Near the Ferroelectric Transition in Tri-Glycine Sulfate
Authors: J.C. Lashley, C. P. Opeil, T. R. Finlayson, R. A. Fisher, N. Hur, M. F. Hundley, B. Mihaila, J. L. Smith
Comments: 4 Pages, 4 Figures. To Appear in Applied Physics Letters_ January 2007
Subj-class: Statistical Mechanics; Other
Journal-ref: Applied Physics Letters, 90, 052910 (2007)

Specific-heat measurements are reported near the Curie temperature ($T_C$~= 320 K) on tri-glycine sulfate. Measurements were made on crystals whose surfaces were either non-grounded or short-circuited, and were carried out in magnetic fields up to 9 T and electric fields up to 220 V/cm. In non-grounded crystals we find that the shape of the specific-heat anomaly near $T_C$ is thermally broadened. However, the anomaly changes to the characteristic sharp $\lambda$-shape expected for a continuous transition with the application of either a magnetic field or an electric field. In crystals whose surfaces were short-circuited with gold, the characteristic $\lambda$-shape appeared in the absence of an external field. This effect enabled a determination of the critical exponents above and below $T_C$, and may be understood on the basis that the surface charge originating from the pyroelectric coefficient, $dP/dT$, behaves as if shorted by external magnetic or electric fields.
hep-ph/0702010 [abs, ps, pdf, other] :: Title: Progress on chiral symmetry breaking in a strong magnetic field
Authors: S.-Y. Wang
Comments: 7 pages, to appear in the Proceedings of International Workshop on Origin of Mass and Strong Coupling Gauge Theories (SCGT 06), Nagoya, Japan, 21-24 November 2006
Subj-class: High Energy Physics - Phenomenology; Mesoscopic Systems and Quantum Hall Effect

The problem of chiral symmetry breaking in QED in a strong magnetic field is briefly reviewed. Recent progress on issues regarding the gauge fixing independence of the dynamically generated fermion mass is discussed.
hep-ph/0702021 [abs, ps, pdf, other] :: Title: The rigidity of crystalline color superconducting quark matter
Authors: Massimo Mannarelli, Krishna Rajagopal, Rishi Sharma
Comments: 36 pages, 5 figures
Subj-class: High Energy Physics - Phenomenology; Superconductivity

We calculate the shear modulus of crystalline color superconducting quark matter, showing that this phase of dense, but not asymptotically dense, three-flavor quark matter responds to shear stress like a very rigid solid. To evaluate the shear modulus, we derive the low energy effective Lagrangian that describes the phonons that originate from the spontaneous breaking of translation invariance by the spatial modulation of the gap parameter $\Delta$. These massless bosons describe space- and time-dependent fluctuations of the crystal structure and are analogous to the phonons in ordinary crystals. The coefficients of the spatial derivative terms of the phonon effective Lagrangian are related to the elastic moduli of the crystal; the coefficients that encode the linear response of the crystal to a shearing stress define the shear modulus. We analyze the two particular crystal structures which are energetically favored over a wide range of densities, in each case evaluating the phonon effective action and the shear modulus up to order $\Delta^2$ in a Ginzburg-Landau expansion, finding shear moduli which are 20 to 1000 times larger than those of neutron star crusts. The crystalline color superconducting phase has long been known to be a superfluid -- by picking a phase its order parameter breaks the quark-number $U(1)_B$ symmetry spontaneously. Our results demonstrate that this superfluid phase of matter is at the same time a rigid solid. We close with a rough estimate of the pinning force on the rotational vortices which would be formed embedded within this rigid superfluid upon rotation. Our results raise the possibility that (some) pulsar glitches could originate within a quark matter core deep within a neutron star.
hep-th/0702001 [abs, ps, pdf, other] :: Title: String Gas Cosmology and Structure Formation - A Brief Review
Authors: Robert Brandenberger
Comments: Invited talk at CosPA 2006, Nov. 15 - 17, 2006, National Taiwan University, Taipei, to be publ. in the proceedings, 11 pages, 3 figures

For suitable cosmological backgrounds, thermal fluctuations of a gas of strings can generate a scale-invariant spectrum of cosmological fluctuations without requiring a phase of inflationary expansion. We highlight the key points of this mechanism, and discuss cosmological backgrounds in which this scenario can be realized. The spectrum of cosmological perturbations has a small red tilt (like in scalar field-driven inflation) but (unlike in inflation) there is a small blue tilt of the spectrum of gravitational waves.
hep-th/0702003 [abs, ps, pdf, other] :: Title: Production of Topological Defects at the End of Inflation
Authors: Mairi Sakellariadou
Comments: 33 pages, 12 figures. Based on an invited talk at "Inflation + 25", 22nd IAP Colloquim, Paris (June 2006). To be published in the Proceedings (Springer Lecture Notes, 2007)

Cosmological inflation and topological defects have been considered for a long time, either in disagreement or in competition. On the one hand an inflationary era is required to solve the shortcomings of the hot big bang model, while on the other hand cosmic strings and string-like objects are predicted to be formed in the early universe. Thus, one has to find ways so that both can coexist. I discuss how to reconcile cosmological inflation with cosmic strings.
hep-th/0702009 [abs, ps, pdf, other] :: Title: Quantum back-reaction of the superpartners in a large-N supersymmetric hybrid model
Authors: J. Baacke, N. Kevlishvili, J. Pruschke
Comments: 37 pages 19 figures

We study the supersymmetric hybrid model near and after the end of inflation. As usual, we reduce the model to a purely scalar hybrid model on the level of the classical fields. But on the level of quantum fluctuations and their backreaction we take into account all superpartners of the waterfall field in a large-N approximation. The evolution after slow roll displays two phases with a different characteristic behaviour of the classical and fluctuation fields. We find that the fluctuations of the pseudoscalar superpartner are of particular importance in the late time phase. The motion of the waterfall field towards its classical expectation value is found to be very slow and suggests a rather flat potential and a stochastic force.
nucl-th/0701096 [abs, ps, pdf, other] :: Title: A Global Model of $\beta^-$-Decay Half-Lives Using Neural Networks
Authors: N. Costiris, E. Mavrommatis, K. A. Gernoth, J. W. Clark
Comments: Proceedings of the 16th Panhellenic Symposium of the Hellenic Nuclear Physics Society
Subj-class: Nuclear Theory; Disordered Systems and Neural Networks; Data Analysis, Statistics and Probability

Statistical modeling of nuclear data using artificial neural networks (ANNs) and, more recently, support vector machines (SVMs), is providing novel approaches to systematics that are complementary to phenomenological and semi-microscopic theories. We present a global model of $\beta^-$-decay halflives of the class of nuclei that decay 100% by $\beta^-$ mode in their ground states. A fully-connected multilayered feed forward network has been trained using the Levenberg-Marquardt algorithm, Bayesian regularization, and cross-validation. The halflife estimates generated by the model are discussed and compared with the available experimental data, with previous results obtained with neural networks, and with estimates coming from traditional global nuclear models. Predictions of the new neural-network model are given for nuclei far from stability, with particular attention to those involved in r-process nucleosynthesis. This study demonstrates that in the framework of the $\beta^-$-decay problem considered here, global models based on ANNs can at least match the predictive performance of the best conventional global models rooted in nuclear theory. Accordingly, such statistical models can provide a valuable tool for further mapping of the nuclidic chart.
quant-ph/0702001 [abs, ps, pdf, other] :: Title: Loss and distribution of quantum and classical correlations in black holes
Authors: Gerardo Adesso, Ivette Fuentes-Schuller
Comments: 4 pages, 3 figures
Subj-class: Quantum Physics; Statistical Mechanics; Mathematical Physics

We quantify the nature of the information loss in a Schwarzschild black hole as a function of its mass. We consider a scalar field in a two-mode squeezed state in the far past, and study the degradation of entanglement and classical correlations from the perspective of observers outside the black hole due to the Hawking radiation. Due to monogamy constraints on the distribution of entanglement, we show that the lost bipartite entanglement is recovered as multipartite entanglement among modes inside and outside the horizon. In the black hole evaporation limit, all bipartite entanglement between modes outside the black hole vanishes while the genuine multipartite entanglement grows infinitely.

Replacements

astro-ph/0511628 [abs, ps, pdf, other] :: Title: Recent Supernovae Ia observations tend to rule out all the cosmologies?
Authors: R. G. Vishwakarma (Zacatecas University)
Comments: Replaced with accepted version
Note: replaced with revised version Thu, 1 Feb 2007 21:32:31 GMT (13kb)
astro-ph/0511763 [abs, ps, pdf, other] :: Title: Do Type-Ia Supernovae Constrain the Total Equation of State?
Authors: William Komp
Comments: version 2, 21 pages, 7 figures, 3 tables, submitted to Prd
Note: replaced with revised version Thu, 1 Feb 2007 22:02:33 GMT (800kb)
astro-ph/0603119 [abs, ps, pdf, other] :: Title: Resolving the nature of the Rosette HH1 jet facing strong UV dissipation
Authors: Jin Zeng Li, You-Hua Chu, Robert A. Gruendl, John Bally, Wei Su
Comments: 8 figures
Note: replaced with revised version Fri, 2 Feb 2007 12:32:44 GMT (300kb)
astro-ph/0605510 [abs, ps, pdf, other] :: Title: Timing properties of XB 1254-690
Authors: Sudip Bhattacharyya (NASA/GSFC, UMCP)
Comments: 9 pages, 2 tables, 3 figures, Accepted for publication in MNRAS
Note: replaced with revised version Fri, 2 Feb 2007 18:39:07 GMT (63kb)
astro-ph/0610043 [abs, ps, pdf, other] :: Title: On the Redshift Distribution of Gamma Ray Bursts in the Swift Era
Authors: Truong Le, Charles D. Dermer (NRL)
Comments: Accepted for publication in ApJ. The paper contains 29 pages and 24 figures
Note: replaced with revised version Fri, 2 Feb 2007 15:59:48 GMT (461kb)
astro-ph/0612048 [abs, ps, pdf, other] :: Title: Corrected Table for the Parametric Coefficients for the Optical Depth of the Universe to Gamma-rays at Various Redshifts
Authors: F. W. Stecker, M. A. Malkan, S. T. Scully
Comments: Table 1 corrected and new gamma-ray energy range of validity given
Note: replaced with revised version Fri, 2 Feb 2007 19:50:59 GMT (7kb)
astro-ph/0701020 [abs, ps, pdf, other] :: Title: Optical Design of the Atacama Cosmology Telescope and the Millimeter Bolometric Array Camera
Authors: J. W. Fowler, M. D. Niemack, S. R. Dicker, A. M. Aboobaker, P. A. R. Ade, E. S. Battistelli, M. J. Devlin, R. P. Fisher, M. Halpern, P. C. Hargrave, A. D. Hincks, M. Kaul, J. Klein, J. M. Lau, M. Limon, T. A. Marriage, P. D. Mauskopf, L. Page, S. T. Staggs, D. S. Swetz, E. R. Switzer, R. J. Thornton, C. E. Tucker
Comments: 23 pages. Accepted for publication in Applied Optics. Several minor clarifications added after peer review
Note: replaced with revised version Fri, 2 Feb 2007 16:50:42 GMT (740kb)
astro-ph/0701147 [abs, ps, pdf, other] :: Title: Correcting the analysis of "IR Anisotropies in Spitzer Goods Images..." by Cooray et al (2006) (astro-ph/0612609)
Authors: A. Kashlinsky
Comments: Corrects errors in the analysis in astro-ph/0612609. Shows that removal of ACS/HST galaxies does not lead to any appreciable decrease in the correlation function of the remaining diffuse light. Added simulations showing explicitly that the power spectrum prior to removal of ACS galaxies leads for the clipped maps to the correlation function measured after their removal
Note: replaced with revised version Fri, 2 Feb 2007 16:08:25 GMT (22kb)
astro-ph/0701577 [abs, html] :: Title: 1st Workshop of Astronomy and Astrophysics for Students
Authors: N.R. Napolitano (1), M. Paolillo (2,3) ((1) INAF-Observatory of Capodimonte, Naples, ITALY; (2) University of Naples Federico II, Dept.of Physical Sciences, ITALY; (3) INFN-Napoli Unit, ITALY)
Comments: Conference proceedings of the "1st Workshop of Astronomy and Astrophysics for Students" held in Naples (ITALY) on April 19-20, 2006. Published by INFN-Naples, eds. N.R. Napolitano & M. Paolillo. The full Conference Proceedings are available at this http URL - Updated links
Note: replaced with revised version Fri, 2 Feb 2007 14:48:03 GMT (2kb)
astro-ph/0701815 [abs, ps, pdf, other] :: Title: Pile-up correction for the Swift-XRT observations in WT mode
Authors: T. Mineo (1), P. Romano (2), V. Mangano (1), A. Moretti (2), G. Cusumano (1), V. La Parola (1), E. Troja (1), S.Campana (2), G. Chincarini (2), G. Tagliaferri (2), M. Capalbi (3), M. Perri (3), P. Giommi (3), D. Burrows (4); ((1) INAF - IASFPA, (2) INAF - Osservatorio Astronomico di Brera, (3) ASI - Science Data Center, (4) PSU - Department of Astronomy & Astrophysics)
Comments: 2 pages, 3 figures. Proceedings of "SWIFT and GRBs: Unveiling the Relativistic Universe" June 5-9, 2006 Venice (Italy); revised version with new references
Note: replaced with revised version Fri, 2 Feb 2007 10:19:58 GMT (18kb)
astro-ph/0701900 [abs, ps, pdf, other] :: Title: Expansion history and f(R) modified gravity
Authors: Malcolm Fairbairn, Sara Rydbeck
Comments: 13 pages, 13 figures, added references and clarifications
Note: replaced with revised version Fri, 2 Feb 2007 11:14:42 GMT (102kb)
gr-qc/0508073 [abs, ps, pdf, other] :: Title: Analytic solutions for the $\Lambda$-FRW Model
Authors: R. Aldrovandi, R. R. Cuzinatto, L. G. Medeiros
Comments: 17 pages, 2 figures; published version
Journal-ref: Foundations of Physics, Vol. 36, No. 11, November 2006
Note: replaced with revised version Fri, 2 Feb 2007 17:02:32 GMT (328kb)
gr-qc/0701143 [abs, ps, pdf, other] :: Title: Gravitational recoil from spinning binary black hole mergers
Authors: Frank Herrmann, Ian Hinder, Deirdre Shoemaker, Pablo Laguna, Richard A. Matzner
Comments: 8 pages, 8 figures, replaced with version accepted for publication in ApJ
Note: replaced with revised version Fri, 2 Feb 2007 19:47:42 GMT (97kb)

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Cross-listings

gr-qc/0610123 [abs, ps, pdf, other] :: Title: Thin-shell wormholes associated with global cosmic strings
Authors: Cecilia Bejarano, Ernesto F. Eiroa, Claudio Simeone
Comments: 7 pages; v2: minor changes. Accepted for publication in Physical Review D
Journal-ref: Phys.Rev. D75 (2007) 027501

In this article we construct cylindrical thin-shell wormholes in the context of global cosmic strings. We study the stability of static configurations under perturbations preserving the symmetry and we find that the throat tends to collapse or expand, depending only on the direction of the velocity perturbation.
gr-qc/0702009 [abs, ps, pdf, other] :: Title: Why do we Still Believe in Newton's Law ? Facts, Myths and Methods in Gravitational Physics
Authors: Alexander Unzicker
Comments: 29 pages LaTeX, 2 figures

An overview of the experimental and observational status in gravitational physics is given, both for the known tests of general relativity and Newtonian gravity, but also for the increasing number of results where these theories run into problems, such as for dark matter, dark energy, and the Pioneer and flyby anomalies. It is argued that (1) scientific theories should be tested (2) current theories of gravity are poorly tested in the weak-acceleration regime (3) the measurements suggest that the anomalous phenomena have a common origin (4) it is useful to consider the present situation under a historical perspective and (5) it could well be that we still do not understand gravity. Proposals for improving the current use of scientific methods are given.
`We do not know anything - this is the first. Therefore, we should be very modest - this is the second. Not to claim that we do know when we do not - this is the third. That's the kind of attitude I'd like to popularize. There is little hope for success.' (Karl Popper)
hep-ex/0702006 [abs, ps, pdf, other] :: Title: An improved limit on the axion-photon coupling from the CAST experiment
Authors: CAST Collaboration
Comments: 24 pages, 8 figures, 1 table, to be submitted to JCAP

We have searched for solar axions or similar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) setup with improved conditions in all detectors. From the absence of excess X-rays when the magnet was pointing to the Sun, we set an upper limit on the axion-photon coupling of 8.8 x 10^{-11} GeV^{-1} at 95% CL for m_a <~ 0.02 eV. This result is the best laboratory limit over a broad range of axion masses and for m_a <~ 0.02 eV also supersedes the previous limit derived from energy-loss arguments on globular-cluster stars.
hep-th/0702002 [abs, ps, pdf, other] :: Title: Gauss-Bonnet cosmologies: crossing the phantom divide and the transition from matter dominance to dark energy
Authors: Ben M. Leith, Ishwaree P. Neupane
Comments: 41 pages, several eps figures

Dark energy cosmologies with an equation-of-state parameter $w$ less than -1 are often found to violate the null energy condition and show unstable behaviour. A solution to this problem requires the existence of a consistent effective theory that violates the null energy condition only momentarily and does not develop any instabilities or other pathological features for the late-time cosmology. A model which incorporates a dynamical scalar field $\phi$ coupled to the quadratic Riemann invariant of the Gauss-Bonnet form is a viable proposal. Such an effective theory admits non-singular solutions for a wide range of scalar-Gauss-Bonnet coupling. The model also provides a reasonable explanation to the transition from matter dominance to dark energy regime and the late-time cosmic acceleration, offering an interesting testing ground for investigations of the cosmological modified gravity.

Replacements

astro-ph/0607484 [abs, pdf] :: Title: When the statistics of image reconstruction are considered, the anisotropies in the cosmic microwave background reported by COBE appear to be less than the systematic errors
Authors: Keith S Cover
Comments: 18 pages with 2 tables and 3 figures. Discussed a key assumption in the official COBE analysis that gain drift much slower than the 75 second rotation rate of the satellite has no significant effect on the reconstructed sky maps. Pointed out that repetitive circular scans by WMAP should be able to provide definitive detection of any 10ppm anisotropies without complications due to gain drift. Deleted all references to Procyon and the MOST satellite to improve the focus of the manuscript. Tidied up phrasing throughout. This research was performed outside of work. Comments welcome
Note: replaced with revised version Mon, 5 Feb 2007 16:03:26 GMT (313kb)
astro-ph/0607512 [abs, ps, pdf, other] :: Title: The DEEP2 Galaxy Redshift Survey: Evolution of the Color-Density Relation at 0.4 < z < 1.35
Authors: Michael C. Cooper, Jeffrey A. Newman, Alison L. Coil, Darren J. Croton, Brian F. Gerke, Renbin Yan, Marc Davis, S. M. Faber, Puragra Guhathakurta, David C. Koo, Benjamin J. Weiner
Comments: 19 pages including 10 figures, accepted to MNRAS
Note: replaced with revised version Sat, 3 Feb 2007 18:19:35 GMT (353kb)
astro-ph/0609241 [abs, ps, pdf, other] :: Title: Ultra High Energy Neutrinos in the Mediterranean: detecting nu_tau and nu_mu with a km^3 Telescope
Authors: A. Cuoco, G. Mangano, G. Miele, S. Pastor, L. Perrone, O. Pisanti, P.D. Serpico
Comments: 24 pages, 13 figures, 2 tables; improved discussion, results and conclusions unchanged; to appear in JCAP, almost matches published version
Note: replaced with revised version Mon, 5 Feb 2007 14:07:25 GMT (790kb)
astro-ph/0609509 [abs, pdf] :: Title: The Sun is a plasma diffuser that sorts atoms by mass
Authors: O. Manuel, S. A. Kamat, M. Mozina
Comments: 20 pages, 92 references, 8 figures show that the Sun is an iron rich magnetic plasma diffuser that selectively moves lightweight elements and isotopes of each element to its surface. Solar luminosity, neutrinos, mass fractionation, and the outpouring of H ions in the solar wind arise from neutron emission and decay at the solar core. Replaced because earlier corrupted pdf file would not print correctly when accessed from some browsers
Journal-ref: Phys.Atom.Nucl. 69 (2006) 1847-1856
Note: replaced with revised version Mon, 5 Feb 2007 17:03:42 GMT (827kb)
astro-ph/0610228 [abs, ps, pdf, other] :: Title: Supernovae in Low-Redshift Galaxy Clusters: the Type-Ia Supernova Rate
Authors: Keren Sharon (1), Avishay Gal-Yam (2), Dan Maoz (1), Alexei V. Filippenko (3), Puragra GuhaThakurta (4). ((1) Tel Aviv University, (2) Caltech, (3) UC Berkeley, (4) UCO/Lick Observatory)
Comments: Revised version following referee's comments; Accepted by ApJ
Note: replaced with revised version Mon, 5 Feb 2007 19:17:50 GMT (1107kb)
astro-ph/0610232 [abs, ps, pdf, other] :: Title: Comments on an alternative theory for the accelerating universe
Authors: Duane A. Dicus, Wayne W. Repko
Comments: 7 pages, 6 figures. Analysis extended to include the most recent supernova data set
Note: replaced with revised version Sun, 4 Feb 2007 17:49:52 GMT (97kb)
astro-ph/0610398 [abs, ps, pdf, other] :: Title: Primordial Non-Gaussianity and Gravitational Waves: Observational Tests of Brane Inflation in String Theory
Authors: James E. Lidsey, David Seery
Comments: 7 pages, uses RevTeX4. v2, replaced with version accepted by Phys. Rev. D
Journal-ref: Phys. Rev. D 75 043505 (2007)
Note: replaced with revised version Mon, 5 Feb 2007 15:50:44 GMT (19kb)
astro-ph/0610883 [abs, ps, pdf, other] :: Title: A model for double notches and bifurcated components in radio profiles of pulsars and magnetars - Evidence for the parallel acceleration maser in pulsar magnetosphere
Authors: J. Dyks, B. Rudak, Joanna M. Rankin
Comments: 15 pages, 10 figures, accepted by A&A after minor changes
Note: replaced with revised version Mon, 5 Feb 2007 16:22:52 GMT (735kb)
astro-ph/0611122 [abs, ps, pdf, other] :: Title: The host galaxies of long-duration GRBs in a cosmological hierarchical scenario
Authors: S.E. Nuza (IAFE), P.B. Tissera (IAFE), L.J. Pellizza (IAFE), D.G. Lambas (OAC), C. Scannapieco (MPA), M.E. De Rossi (IAFE)
Comments: Final revised version with minor changes. 9 pages, 9 figures, mn2e.cls. To appear in MNRAS
Note: replaced with revised version Mon, 5 Feb 2007 14:58:34 GMT (231kb)
astro-ph/0611415 [abs, ps, pdf, other] :: Title: CO line width and the black hole -- bulge relationship at high redshift
Authors: Xue-Bing Wu (PKU)
Comments: 18 pages, 4 figures, accepted by the Astrophysical Journal
Note: replaced with revised version Mon, 5 Feb 2007 05:17:16 GMT (37kb)
astro-ph/0611495 [abs, ps, pdf, other] :: Title: Initial Results from the USNO Dispersed Fourier Transform Spectrograph
Authors: Arsen R. Hajian, Bradford B. Behr, Andrew T. Cenko, Robert P. Olling, David Mozurkewich, J. Thomas Armstrong, Brian Pohl, Sevan Petrossian, Kevin H. Knuth, Robert B. Hindsley, Marc Murison, Michael Efroimsky, Ronald Dantowitz, Marek Kozubal, Douglas G. Currie, Tyler E. Nordgren, Christopher Tycner, Robert S. McMillan
Note: replaced with revised version Mon, 5 Feb 2007 17:14:35 GMT (753kb)
astro-ph/0611580 [abs, ps, pdf, other] :: Title: TeV gamma-rays from photo-disintegration/de-excitation of cosmic-ray nuclei
Authors: Luis A. Anchordoqui, John F. Beacom, Haim Goldberg, Sergio Palomares-Ruiz, Thomas J. Weiler
Comments: To be published in Phys. Rev. Lett
Note: replaced with revised version Mon, 5 Feb 2007 18:10:13 GMT (18kb)
astro-ph/0611581 [abs, ps, pdf, other] :: Title: TeV gamma-rays and neutrinos from photo-disintegration of nuclei in Cygnus OB2
Authors: Luis A. Anchordoqui, John F. Beacom, Haim Goldberg, Sergio Palomares-Ruiz, Thomas J. Weiler
Comments: To be published in Phys. Rev. D
Note: replaced with revised version Mon, 5 Feb 2007 18:49:56 GMT (163kb)
astro-ph/0612178 [abs, ps, pdf, other] :: Title: On the nature of X-Ray Flashes in the SWIFT era
Authors: B. Gendre (1, 2), A. Galli (1, 3), L. Piro (1) ((1) IASF-Roma/INAF; (2) University Bicocca Milano; (3) INFN-Trieste)
Comments: 5 pages, 2 color figures. Submitted to Astronomy and Astrophysics Letters. Referee comments implemented
Note: replaced with revised version Mon, 5 Feb 2007 18:12:57 GMT (18kb)
astro-ph/0612179 [abs, ps, pdf, other] :: Title: The Effect of Large-Scale Inhomogeneities on the Luminosity Distance
Authors: N. Brouzakis, N. Tetradis, E. Tzavara
Comments: 27 pages, 5 figures Revised version. References added. Conclusions clarified
Note: replaced with revised version Sat, 3 Feb 2007 16:52:42 GMT (58kb)
astro-ph/0612521 [abs, ps, pdf, other] :: Title: Radio Sources in Galaxy Clusters: Radial Distribution, and 1.4 GHz and K-band Bivariate Luminosity Function
Authors: Yen-Ting Lin (1 and 2), Joseph J. Mohr (3) ((1) Princeton University, (2) Pontificia Universidad Catolica de Chile, (3) University of Illinois)
Comments: ApJS, in press; 27 pages, 16 figures
Note: replaced with revised version Sun, 4 Feb 2007 16:59:38 GMT (190kb)
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
Note: replaced with revised version Sun, 4 Feb 2007 12:49:02 GMT (56kb)
astro-ph/0701197 [abs, ps, pdf, other] :: Title: The mass and luminosity functions and the formation rate of DA white dwarfs in the Sloan Digital Sky Survey
Authors: Qi Hu, Chaolun Wu, Xue-Bing Wu (PKU)
Comments: 16 pages, 20 figures, 3 tables, accepted by Astronomy & Astrophysics
Note: replaced with revised version Mon, 5 Feb 2007 06:02:23 GMT (532kb)
astro-ph/0701297 [abs, ps, pdf, other] :: Title: The SINFONI pipeline
Authors: Andrea Modigliani, Wolfgang Hummel, Roberto Abuter, Paola Amico, Pascal Ballester, Richard Davies, Christophe Dumas, Mattew Horrobin, Mark Neeser, Markus Kissler-Patig, Michele Peron, Juha Rehunanen, Juergen Schreiber, Thomas Szeifert
Comments: 10 pages, 11 figures, Proceedings ADA IV, 2006. A high resolution version of the paper and the SINFONI pipeline may be found on this http URL
Note: replaced with revised version Mon, 5 Feb 2007 15:31:00 GMT (1894kb)
astro-ph/0701597 [abs, ps, pdf, other] :: Title: The dressing procedure for the cosmological equations and the indefinite future of the universe
Authors: A.V. Yurov, V.A. Astashenok, V.A. Yurov
Comments: New version: 8 pages, RevTeX; the old title ''The dressing procedure for the Friedmann equations and the indefinite future of the universe''; the results about anisotropic cosmological models and references are added
Note: replaced with revised version Mon, 5 Feb 2007 11:07:34 GMT (14kb)
astro-ph/0701799 [abs, ps, pdf, other] :: Title: Weak Lensing Mass Reconstruction of the Galaxy Cluster Abell 209
Authors: S. Paulin-Henriksson, V. Antonuccio-Delogu, C.P. Haines, M. Radovich, A. Mercurio, U. Becciani
Comments: accepted by A&A, 15 pages, 11 figures
Note: replaced with revised version Mon, 5 Feb 2007 15:55:45 GMT (800kb)
astro-ph/0702016 [abs, ps, pdf, other] :: Title: Identifications of FIRST radio sources in the NOAO Deep-Wide Field Survey
Authors: K. EL Bouchefry, C.M. Cress
Comments: 9 pages, 7 figures. Accepted for publication in Astronomische Nachrichten; will appear in the issue 5/328
Note: replaced with revised version Mon, 5 Feb 2007 11:09:03 GMT (120kb)
astro-ph/0702051 [abs, ps, pdf, other] :: Title: Asteroseismology: a powerful tool to complement planet transits
Authors: D. Stello (1), H. Kjeldsen (2), T. R. Bedding (1) ((1) School of Physics, University of Sydney, Australia, (2) Institut for Fysik og Astronomi, Aarhus Universitet, Denmark)
Comments: 6 pages, 8 figures, corrected typos. To appear in the PASP proceedings of "Transiting Extrasolar Planets Workshop" MPIA Heidelberg Germany, 25th-28th September 2006. Eds: Cristina Afonso, David Weldrake & Thomas Henning
Note: replaced with revised version Mon, 5 Feb 2007 08:50:18 GMT (517kb)
gr-qc/0601029 [abs, ps, pdf, other] :: Title: Gravitomagnetic resonant excitation of Rossby modes in coalescing neutron star binaries
Authors: Éanna É. Flanagan, Étienne Racine
Comments: 23 pages, 2 figures, substantial changes to the presentation, error corrected in energy argument in Appendix B
Journal-ref: Phys. Rev. D 75, 044001 (2007)
Note: replaced with revised version Fri, 2 Feb 2007 21:47:18 GMT (62kb)
gr-qc/0608105 [abs, ps, pdf, other] :: Title: The Lense-Thirring effect and the Pioneer anomaly: Solar System tests
Authors: Lorenzo Iorio
Comments: WS LaTex macros for proceedings, 3 pages, no figures, no tables, 31 references. Paper submitted to the Eleventh Marcel Grossmann Meeting on General Relativity, 23-29 July, Freie Universitaet Berlin, 2006. Abridged version to meet page limits. Some changes in the Lense-Thirrings section including the new results from MGS. Thanks to Daniela Taeuber for useful correspondence about the Pioneer anomaly
Subj-class: General Relativity and Quantum Cosmology; Geophysics; Space Physics
Note: replaced with revised version Sat, 3 Feb 2007 00:19:36 GMT (19kb)
gr-qc/0611107 [abs, ps, pdf, other] :: Title: Curvature scalar instability in f(R) gravity
Authors: Thomas P. Sotiriou
Comments: typos corrected, replaced to match published version
Journal-ref: Phys. Lett. B 645 (2007) 389-392
Note: replaced with revised version Mon, 5 Feb 2007 19:18:16 GMT (32kb)

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gr-qc/0702028 [abs, ps, pdf, other] :: Title: The Gravitomagnetic Influence on Gyroscopes and on the Lunar Orbit
Authors: T. W. Murphy Jr., K. Nordtvedt, S. G. Turyshev
Comments: 4 pages; accepted for publication in Physical Review Letters

Gravitomagnetism--a motional coupling of matter analogous to the Lorentz force in electromagnetism--has observable consequences for any scenario involving differing mass currents. Examples include gyroscopes located near a rotating massive body, and the interaction of two orbiting bodies. In the former case, the resulting precession of the gyroscope is often called ``frame dragging,'' and is the principal measurement sought by the Gravity Probe-B experiment. The latter case is realized in the earth-moon system, and the effect has in fact been confirmed via lunar laser ranging (LLR) to approximately 0.1% accuracy--better than the anticipated accuracy of the Gravity-Probe-B result. This paper shows the connnection between these seemingly disparate phenomena by employing the same gravitomagnetic term in the equation of motion to obtain both gyroscopic precession and modification of the lunar orbit. Since lunar ranging currently provides a part in a thousand fit to the gravitomagnetic contributions to the lunar orbit, this feature of post-Newtonian gravity is not adjustable to fit any anomalous result beyond the 0.1% level from Gravity Probe-B without disturbing the existing fit of theory to the 36 years of LLR data.
hep-ph/0701229 [abs, ps, pdf, other] :: Title: On the Feasibility of a Stop NLSP in Gravitino Dark Matter Scenarios
Authors: J. L. Diaz-Cruz, John Ellis, Keith A. Olive, Yudi Santoso
Comments: 31 pages, 14 figures

We analyze the possibility that the lighter stop {\tilde t_1} could be the next-to-lightest supersymmetric particle (NLSP) in models where the gravitino is the lightest supersymmetric particle (LSP). We do not find any possibility for a stop NLSP in the constrained MSSM with universal input soft supersymmetry-breaking masses at the GUT scale (CMSSM), but do find small allowed regions in models with non-universal Higgs masses (NUHM). We discuss the cosmological evolution of stop hadrons. Most {\tilde t_1}qq `sbaryons' and the corresponding `antisbaryons' annihilate with conventional antibaryons and baryons into {\tilde t_1}{\bar q} `mesinos' and the corresponding `antimesinos', respectively, shortly after the quark-hadron transition in the early Universe, and most mesinos and antimesinos subsequently annihilate. As a result, insufficient metastable charged stop hadrons survive to alter Big Bang nucleosynthesis.
hep-ph/0702024 [abs, ps, pdf, other] :: Title: Electrogenesis via primordial black holes
Authors: Diego N. Pelliccia
Comments: 29 pages, no figures

It was recently shown that the vanishing of the Coulomb field related to the electric charge of a black hole by virtue of a tiny but non-vanishing photon mass can produce an electric asymmetry in the universe. This process can have place both at a cosmological early stage, through primordial black holes, and in contemporary universe, by means of supermassive black holes at galactic centers. Possible consequences of the latter case about the role of electrogenesis in the generation of magnetic fields coherent on galactic scale have been investigated. In this paper we will discuss the electrogenesis mediated by primordial black holes and analyze different realizations of the mechanism in this case.
hep-ph/0702051 [abs, ps, pdf, other] :: Title: Dark Matter Candidates: What Cold, ..and What's Not
Authors: Lawrence M. Krauss (CERCA, Physics Department, Case Western Reserve University, and Physics Department, Vanderbilt University)
Comments: 6 pages, Invited Review talk, Neutrino 2006. To appear in Proceedings

In this brief review of recent theoretical developments associated with the search for dark matter I describe the following: why baryons are now ruled out as dark matter candidates; SUSY WIMPS and signatures in the MSSM and NMSSM why claimed indirect signatures are probably not WIMP related, why axions may be of new interest, how WIMP detection might tell us about the galactic halo, and how theorists are preparing to avoid the next generation of experimental constraints.
hep-th/0701233 [abs, ps, pdf, other] :: Title: Graceful exit from a stringy landscape via MSSM inflation
Authors: Rouzbeh Allahverdi, Andrew R. Frey, Anupam Mazumdar
Comments: 19pp; v2. added refs, corrected citations, added a few comments

The cosmological evolution of the string landscape is expected to consist of multiple stages of old inflation with large cosmological constant ending by tunneling. Old inflation has a well known graceful exit problem as the observable universe becomes empty, devoid of any entropy. Simultaneously, in the quest for reheating the right degrees of freedom, it is important that the final stage of inflation ends within the Minimal Supersymmetric Standard Model (MSSM) sector. In this paper, we study how inflation of a MSSM flat direction can be embedded into the string theory landscape of metastable vacua. The fluctuations of the MSSM flat direction during old inflation create regions with initial conditions favorable for eternal and slow-roll inflation and provides a graceful exit from old inflation on the landscape. This resulting phase of MSSM inflation generates enough e-foldings of inflation to dilute any relics of old inflation while producing the observed amplitude of temperature anisotropy with a matching spectral tilt and negligible gravity waves. The decay of the flat direction reheats the universe, which is suitable for a hot big bang cosmology filled with Standard Model baryons and cold dark matter.
nucl-ex/0702003 [abs, ps, pdf, other] :: Title: 3He(alpha,gamma)7Be cross section at low energies
Authors: Gy. Gyurky, F. Confortola, H. Costantini, A. Formicola, D. Bemmerer, R. Bonetti, C. Broggini, P. Corvisiero, Z. Elekes, Zs. Fulop, G. Gervino, A. Guglielmetti, C. Gustavino, G. Imbriani, M. Junker, M. Laubenstein, A. Lemut, B. Limata, V. Lozza, M. Marta, R. Menegazzo, P. Prati, V. Roca, C. Rolfs, C. Rossi Alvarez, E. Somorjai, O. Straniero, F. Strieder, F. Terrasi, H.P. Trautvetter
Comments: Accepted for publication in PRC

The flux of 7Be and 8B neutrinos from the Sun and the production of 7Li via primordial nucleosynthesis depend on the rate of the 3He(alpha,gamma)7Be reaction. In extension of a previous study showing cross section data at 127 - 167 keV center of mass energy, the present work reports on a measurement of the 3He(alpha,gamma)7Be cross section at 106 keV performed at Italy's Gran Sasso underground laboratory by the activation method. This energy is closer to the solar Gamow energy than ever reached before. The result is sigma = 0.567 +- 0.029(stat) +- 0.016(syst) nbarn. The data are compared with previous activation studies at high energy, and a recommended S(0) value for all 3He(alpha,gamma)7Be activation studies, including the present work, is given.
nucl-th/0611090 [abs, ps, pdf, other] :: Title: Relativistic Dynamics of Non-ideal Fluids: Viscous and heat-conducting fluids I. General Aspects and 3+1 Formulation for Nuclear Collisions
Authors: Azwinndini Muronga
Comments: 49 pages, added references, typos added

Relativistic non-ideal fluid dynamics is formulated in 3+1 space--time dimensions. The equations governing dissipative relativistic hydrodynamics are given in terms of the time and the 3-space quantities which correspond to those familiar from non-relativistic physics. Dissipation is accounted for by applying the causal theory of relativistic dissipative fluid dynamics. As a special case we consider a fluid without viscous/heat couplings in the causal system of transport/relaxation equations. For the study of physical systems we consider pure (1+1)-dimensional expansion in planar geometry, (1+1)-dimensional spherically symmetric ({\em fireball}) expansion, (1+1)-dimensional cylindrically symmetric expansion and a (2+1)-dimensional expansion with cylindrical symmetry in the transverse plane ({\em firebarell} expansion). The transport/relaxation equations are given in terms of the spatial components of the dissipative fluxes, since these are not independent. The choice for the independent components is analogous to the non-relativistic equations.
nucl-th/0611091 [abs, ps, pdf, other] :: Title: Relativistic Dynamics of Non-ideal Fluids: Viscous and heat-conducting fluids II. Transport properties and microscopic description of relativistic nuclear matter
Authors: Azwinndini Muronga
Comments: 47 pages, 2 figures, added references, added typos

In the causal theory of relativistic dissipative fluid dynamics, there are conditions on the equation of state and other thermodynamic properties such as the second-order coefficients of a fluid that need to be satisfied to guarantee that the fluid perturbations propagate causally and obey hyperbolic equations. The second-order coefficients in the causal theory, which are the relaxation times for the dissipative degrees of freedom and coupling constants between different forms of dissipation (relaxation lengths), are presented for partonic and hadronic systems. These coefficients involves relativistic thermodynamic integrals. The integrals are presented for general case and also for different regimes in the temperature--chemical potential plane. It is shown that for a given equation of state these second-order coefficients are not additional parameters but they are determined by the equation of state. We also present the prescription on the calculation of the freeze-out particle spectra from the dynamics of relativistic non-ideal fluids.

Replacements

astro-ph/0606468 [abs, pdf] :: Title: Terrestrial planetary dynamics: a view from U, Th geochemistry
Authors: Xuezhao Bao
Comments: 26 pages, 4 figures, 2 tables
Subj-class: Astrophysics; Geophysics
Note: replaced with revised version Tue, 6 Feb 2007 05:33:39 GMT (299kb)
astro-ph/0607362 [abs, ps, pdf, other] :: Title: The Virial Balance of Clumps and Cores in Molecular Clouds
Authors: Sami Dib (1,2), Jongsoo Kim (2), Enrique Vazquez-Semadeni (1), Andreas Burkert (3), Mohsen Shadmehri (4,5) ((1) CRyA-UNAM, (2) KASI, (3) USM, (4) DCU, (5) Ferdowsi Univ.)
Comments: Accepted to ApJ. Discussion substantially enlarged, a few corrections and additional figures. Main conclusions unchanged
Note: replaced with revised version Tue, 6 Feb 2007 12:17:23 GMT (885kb)
astro-ph/0610130 [abs, ps, pdf, other] :: Title: Coexistence of Self-Organized Criticality and Intermittent Turbulence in the Solar Corona
Authors: Vadim M. Uritsky, Maya Paczuski, Joseph M. Davila, Shaela I. Jones
Comments: 4 pages, 4 figures
Note: replaced with revised version Tue, 6 Feb 2007 03:08:04 GMT (282kb)
astro-ph/0610661 [abs, ps, pdf, other] :: Title: Constraining Alternative Theories of Gravity using Solar System Tests
Authors: Gianluca Allemandi, Matteo Luca Ruggiero
Comments: 5 Pages, RevTeX, minor revision, references added
Note: replaced with revised version Tue, 6 Feb 2007 15:17:13 GMT (8kb)
astro-ph/0611237 [abs, ps, pdf, other] :: Title: The Low-Mass X-ray Binary and Globular Cluster Connection in Virgo Cluster Early-type Galaxies: Optical Properties
Authors: Gregory R. Sivakoff (1,2), Andrés Jordán (3), Craig L. Sarazin (1), John P. Blakeslee (4), Patrick C{\^ o}t{\' e} (5), Laura Ferrarese (5), Adrienne M. Juett (1), Simona Mei (6,7), Eric W. Peng (5) ((1) University of Virginia, (2) The Ohio State University, (3) European Southern Observatory, (4) Washington State University, (5) Herzberg Institute of Astrophysics, (6) Observatoire de Paris, (7) Johns Hopkins University)
Comments: Accepted by Astrophysical Journal after minor changes, 19 pages, 5 Color Figures (degraded), 6 B & W Figures: Full resolution paper available at this http URL
Note: replaced with revised version Tue, 6 Feb 2007 17:07:40 GMT (372kb)
astro-ph/0611403 [abs, ps, pdf, other] :: Title: The Bulge Radial Velocity Assay (BRAVA): I. Techniques and a Rotation Curve
Authors: R. Michael Rich, David B. Reitzel, Christian D. Howard, HongSheng Zhao
Comments: Accepted to ApJ letters. This replacement updates the paper to the accepted version
Note: replaced with revised version Mon, 5 Feb 2007 23:00:32 GMT (96kb)
astro-ph/0611744 [abs, ps, pdf, other] :: Title: Gravitational lensing by cosmic strings: what we learn from the CSL-1 case
Authors: M.V. Sazhin (1), O.S. Khovanskaya (1), M. Capaccioli (2,3), G. Longo (3,4,5), M. Paolillo (3,5,6), G. Covone (4), N.A. Grogin (7), E.J. Schreier (7,8) ((1) Sternberg Astronomical Institute, Moscow State University, Moscow, RUSSIA; (2) VSTceN-INAF, Napoli, ITALY; (3) Universita' di Napoli Federico II, Dip. di Scienze Fisiche, ITALY; (4) INAF-Osservatorio Astronomico di Capodimonte, Napoli, ITALY; (5) INFN-Napoli Unit, ITALY; (6) Space Telescope Science Institute, Baltimore, USA; (7) Dep. of Physics and Astronomy, The Johns Hopkins University, Baltimore, USA; (8) Associated Universities Inc., Washington DC, USA)
Comments: 12 pages, 8 figures, in press on MNRAS. Replaced with accepted version
Note: replaced with revised version Tue, 6 Feb 2007 17:56:40 GMT (1170kb)
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. Added some clarifying comments and references. Corrected an error in the brane inflation section which required the removal of one figure and the replacement of another
Note: replaced with revised version Mon, 5 Feb 2007 23:11:35 GMT (339kb)
astro-ph/0612327 [abs, ps, pdf, other] :: Title: The Shape of the Gravitational Potential in Cold Dark Matter Halos
Authors: E. Hayashi (1), J.F. Navarro (2), V. Springel (1) ((1) MPA Garching, (2) University of Victoria)
Comments: 18 pages, 10 figures, accepted by MNRAS after minor revisions, high resolution version avaliable at this http URL
Note: replaced with revised version Tue, 6 Feb 2007 17:13:12 GMT (833kb)
astro-ph/0612739 [abs, ps, pdf, other] :: Title: Dark Energy Parametrizations and the Curvature of the Universe
Authors: Kazuhide Ichikawa, Tomo Takahashi
Comments: 13 pages, 4 figures; (v2) published version
Journal-ref: JCAP 0702 (2007) 001
Note: replaced with revised version Tue, 6 Feb 2007 13:12:47 GMT (228kb)
astro-ph/0701653 [abs, ps, pdf, other] :: Title: Iorio's "high-precision measurement" of frame-dragging with the Mars Global Surveyor
Authors: Kris Krogh
Comments: 8 pages, LaTeX2e, 1 figure; expanded figure and discussion, added acknowledgement, important change in Reference [2], added acknowlegement
Note: replaced with revised version Tue, 6 Feb 2007 08:37:55 GMT (684kb)
astro-ph/0701781 [abs, ps, pdf, other] :: Title: The Space Motion of the Globular Cluster NGC 6397
Authors: Jasonjot S. Kalirai, Jay Anderson, Harvey B. Richer, Ivan R. King, James P. Brewer, Giovanni Carraro, Saul D. Davis, Gregory G. Fahlman, Brad M. S. Hansen, Jarrod R. Hurley, Sebastien Lepine, David B. Reitzel, R. Michael Rich, Michael M. Shara, Peter B. Stetson
Comments: 5 pages including 3 figures, accepted for publication in the Astrophysical Journal Letters. Very minor changes in V2. typos fixed
Note: replaced with revised version Tue, 6 Feb 2007 19:48:21 GMT (158kb)
astro-ph/0702015 [abs, ps, pdf, other] :: Title: Probing the Coupling between Dark Components of the Universe
Authors: Zong-Kuan Guo, Nobuyoshi Ohta, Shinji Tsujikawa
Comments: 8 pages, 7 figures, RevTeX, references added
Note: replaced with revised version Tue, 6 Feb 2007 13:24:20 GMT (136kb)
astro-ph/0702115 [abs, ps, pdf, other] :: Title: Searching for RR Lyrae stars in the Canis Major Overdensity
Authors: Cecilia Mateu (1), A. Katherina Vivas (1), Robert Zinn (2), Lissa Miller (2). ((1) Centro de Investigaciones de Astronomia (CIDA), (2) Yale University Astronomy Department)
Comments: 2 pages, 1 figure, to appear in the proceedings of IAU Symposium No241 "Stellar Populations as Building Blocks of Galaxies"
Note: replaced with revised version Tue, 6 Feb 2007 17:00:24 GMT (484kb)
hep-ex/0702006 [abs, ps, pdf, other] :: Title: An improved limit on the axion-photon coupling from the CAST experiment
Authors: CAST Collaboration
Comments: 24 pages, 8 figures, 1 table, to be submitted to JCAP; v2: minor changes in the exclusion plot
Note: replaced with revised version Tue, 6 Feb 2007 13:40:15 GMT (111kb)
hep-ph/0612092 [abs, ps, pdf, other] :: Title: Sterile neutrino production via active-sterile oscillations: the quantum Zeno effect
Authors: D. Boyanovsky, C. M. Ho
Comments: 2 new figures and more discussions
Note: replaced with revised version Mon, 5 Feb 2007 22:47:26 GMT (216kb)

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hep-th/0702031 [abs, ps, pdf, other] :: Title: Multiple Lambda cosmology: dark fluid with time-dependent equation of state as classical analog of cosmological landscape
Authors: Shin'ichi Nojiri, Sergei D. Odintsov
Comments: LaTeX file, 8 pages, no figure

We discuss FRW universe with time-dependent EoS dark fluid which leads to multiple de Sitter space. This model (as well as its scalar-tensor version) may be considered as some classical analog of cosmological landscape. The universe expansion history may look as transitions between different deSitter eras what suggests the interesting solution for cosmological constant problem. For specific time-dependent EoS dark fluid the possibility of transitions between universe regions with positive and negative cosmological constant is also established.

Replacements

astro-ph/0609555 [abs, ps, pdf, other] :: Title: Characterization of Dusty Debris Disks: the IRAS and Hipparcos Catalogs
Authors: Joseph H. Rhee, Inseok Song, B. Zuckerman, Michael McElwain
Comments: Changes made to table, figures and conclusion (v4); correction made to Equation 9 (v3); added a paragraph and a reference to Section 3 (v2); ApJ in press
Note: replaced with revised version Tue, 6 Feb 2007 22:15:48 GMT (454kb)
astro-ph/0610283 [abs, ps, pdf, other] :: Title: A longer XMM-Newton look at I Zwicky 1: Variability of the X-ray continuum, absorption, and iron Kalpha line
Authors: L. C. Gallo (1,2), W. N. Brandt (3), E. Costantini (4,5), A. C. Fabian (6), K. Iwasawa (1), I. E. Papadakis (7) ((1) MPE; (2) Univ. St Andrews; (3) PSU; (4) SRON; (5) Utrecht Univ; (6) IoA; (7) Univ. of Crete)
Comments: 11 pages, 13 figures. Accepted by MNRAS. Minor revisions and expanded discussion
Note: replaced with revised version Wed, 7 Feb 2007 15:38:13 GMT (255kb)
astro-ph/0610428 [abs, ps, pdf, other] :: Title: Induced Nested Galactic Bars Inside Assembling Dark Matter Halos
Authors: Clayton Heller (GSU), Isaac Shlosman (UK Lexington), E. Athanassoula (Observatoire de Marseille)
Comments: 4 pages, 4 figures, 1 mpeg animation. To be published by the Astrophysical Journal Letters. The animation can be found at this http URL Replaced with an updated version (small text corrections)
Note: replaced with revised version Tue, 6 Feb 2007 23:41:06 GMT (97kb)
astro-ph/0610655 [abs, ps, pdf, other] :: Title: Comparing Eta Carinae with the Red Rectangle
Authors: Noam Soker (Technion, Israel)
Comments: ApJ, in press (small changes from original version)
Note: replaced with revised version Wed, 7 Feb 2007 06:48:33 GMT (30kb)
astro-ph/0612178 [abs, ps, pdf, other] :: Title: On the nature of X-Ray Flashes in the SWIFT era
Authors: B. Gendre (1, 2), A. Galli (1, 3), L. Piro (1) ((1) IASF-Roma/INAF; (2) University Bicocca Milano; (3) INFN-Trieste)
Comments: 4 pages, 2 color figures. Astronomy and Astrophysics Letters, accepted
Note: replaced with revised version Wed, 7 Feb 2007 14:44:54 GMT (18kb)
astro-ph/0612408 [abs, ps, pdf, other] :: Title: SN 2006gy: An extremely luminous supernova in the galaxy NGC 1260
Authors: E. O. Ofek, P. B. Cameron, M. M. Kasliwal, A. Gal-Yam, A. Rau, S. R. Kulkarni, D. A. Frail, P. Chandra, S. B. Cenko, A. M. Soderberg, S. Immler
Comments: 4 pages, ApJL, submitted
Note: replaced with revised version Wed, 7 Feb 2007 19:20:37 GMT (239kb)
astro-ph/0612753 [abs, ps, pdf, other] :: Title: Hard X-Ray Properties of Groups of Galaxies as Observed with ASCA
Authors: Kazuhiro Nakazawa (ISAS/JAXA), Kazuo Makishima (Univ. of Tokyo/RIKEN), Yasushi Fukazawa (Hiroshima Univ.)
Comments: 18 pages, 10 figures; published with minor updates in proof procedure
Journal-ref: 2007, PASJ, 59, 1
Note: replaced with revised version Wed, 7 Feb 2007 17:41:28 GMT (608kb)
astro-ph/0701037 [abs, ps, pdf, other] :: Title: Electron density and carriers of the diffuse interstellar bands
Authors: P. Gnacinski, J.K. Sikorski, G.A. Galazutdinov
Note: replaced with revised version Wed, 7 Feb 2007 13:31:08 GMT (60kb)
astro-ph/0701076 [abs, ps, pdf, other] :: Title: Stratified Quasar Winds: Integrating X-ray and Infrared Views of Broad Absorption Line Quasars
Authors: S. C. Gallagher (UCLA), J. E. Everett (Wisconsin)
Comments: 10 pages, 2 color figures, uses asp2006.sty and psfig.sty. Conference proceedings to appear in "The Central Engine of Active Galactic Nuclei", ed. L.C. Ho and J.-M. Wang (San Francisco: ASP). References have been added
Note: replaced with revised version Wed, 7 Feb 2007 02:00:59 GMT (208kb)
astro-ph/0701092 [abs, ps, pdf, other] :: Title: Lost and Found: A New Position and Infrared Counterpart for the X-ray Binary Scutum X-1
Authors: D. L. Kaplan, A. M. Levine, D. Chakrabarty, E. H. Morgan, D. K. Erb, B. M. Gaensler, D.-S. Moon, P. B. Cameron
Comments: 10 pages, 9 figures. Revised following referee's comments. Accepted to ApJ
Note: replaced with revised version Tue, 6 Feb 2007 21:20:24 GMT (502kb)
astro-ph/0701410 [abs, ps, pdf, other] :: Title: Can the soft excess in AGN originate from disc reflection?
Authors: Chris Done, Sergei Nayakshin
Comments: 5 pages, 3 figures, accepted to MNRAS with minor changes from the submitted version
Note: replaced with revised version Wed, 7 Feb 2007 15:42:57 GMT (60kb)
astro-ph/0701733 [abs, ps, pdf, other] :: Title: Insights from Simulations of Star Formation
Authors: Richard B. Larson
Comments: To be published in Reports on Progress in Physics
Note: replaced with revised version Wed, 7 Feb 2007 18:46:04 GMT (34kb)
astro-ph/0701746 [abs, ps, pdf, other] :: Title: The redshift evolution of early-type galaxies in COSMOS: Do massive early-type galaxies form by dry mergers?
Authors: C. Scarlata, C. M. Carollo, S.J. Lilly, R. Feldmann, P. Kampczyk, A. Renzini, A. Cimatti, C. Halliday, E. Daddi, M. T. Sargent, A. Koekemoer, N. Scoville, J-P. Kneib, A. Leauthaud, R. Massey, J. Rhodes, L. Tasca, Capak, H. J. McCracken, B. Mobasher, Y. Taniguchi, D. Thompson, M. Ajiki, H. Aussel, T. Murayama, D. B. Sanders, S. Sasaki, Y. Shioya, M. Takahashi
Comments: Replaced with accepted version (ApJ COSMOS special issue)
Note: replaced with revised version Wed, 7 Feb 2007 09:24:02 GMT (573kb)
astro-ph/0702110 [abs, ps, pdf, other] :: Title: A theoretical approach for the interpretation of pulsating PMS intermediate-mass stars
Authors: A. Ruoppo, M. Marconi, J. P. Marques, M. J. P. F. G. Monteiro, J. Christensen-Dalsgaard, F. Palla, V. Ripepi
Comments: Accepted for publication on A&A
Note: replaced with revised version Wed, 7 Feb 2007 09:11:50 GMT (109kb)
astro-ph/0702136 [abs, ps, pdf, other] :: Title: A Spitzer IRS Low-Resolution Spectroscopic Search for Buried AGNs in Nearby Ultraluminous Infrared Galaxies - A Constraint on Geometry between Energy Sources and Dust -
Authors: Masatoshi Imanishi (1), C. C. Dudley (2), Roberto Maiolino (3), Philip R. Maloney (4), Takao Nakagawa (5), Guido Risaliti (6) ((1) NAO Japan, (2) NRL/GMU, (3) Rome, (4) Univ. of Colorado, (5) ISAS/JAXA, (6) Arcetri)
Comments: 67 pages, 13 figures, accepted for publication in ApJ
Note: replaced with revised version Wed, 7 Feb 2007 02:47:12 GMT (327kb)
astro-ph/0702139 [abs, ps, pdf, other] :: Title: Effects of young stellar populations on determination of ages and metallicities of dominating stellar populations of galaxies
Authors: Zhongmu Li, Zhanwen Han
Comments: 8 pages, 18 figures.This is a immature one and a new version will be submitted ASAP!!
Note: replaced with revised version Wed, 7 Feb 2007 08:23:39 GMT (155kb)
gr-qc/0609076 [abs, ps, pdf, other] :: Title: Thermodynamics second law and $\omega=-1$ crossing(s) in interacting holographic dark energy model
Authors: H. Mohseni Sadjadi, M. Honardoost
Comments: 13 pages, 1 figure, a shorter version to appear in Phys. Lett. B
Note: replaced with revised version Wed, 7 Feb 2007 07:33:02 GMT (13kb)
gr-qc/0611157 [abs, ps, pdf, other] :: Title: A note on spin two fields in curved backgrounds
Authors: S. Deser, M. Henneaux
Comments: 5 pages - Minor misprints corrected - Version accepted by Class. Quant. Grav
Note: replaced with revised version Wed, 7 Feb 2007 11:23:45 GMT (5kb)
gr-qc/0701074 [abs, ps, pdf, other] :: Title: Particle vs. future event horizon in interacting holographic dark energy model
Authors: H. Mohseni Sadjadi
Comments: 12 pages, 2 figures, references added, abstract changed, typos corrected. To be published in JCAP
Note: replaced with revised version Wed, 7 Feb 2007 07:10:53 GMT (14kb)

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gr-qc/0702039 [abs, ps, pdf, other] :: Title: Upper limits on gravitational wave emission from 78 radio pulsars
Authors: The LIGO Scientific Collaboration: B. Abbott, et al, M. Kramer, A. G. Lyne
Comments: 21 pages

We present upper limits on the gravitational wave emission from 78 radio pulsars based on data from the third and fourth science runs of the LIGO and GEO600 gravitational wave detectors. The data from both runs have been combined coherently to maximise sensitivity. For the first time pulsars within binary (or multiple) systems have been included in the search by taking into account the signal modulation due to their orbits. Our upper limits are therefore the first measured for 56 of these pulsars. For the remaining 22, our results improve on previous upper limits by up to a factor of 10. For example, our tightest upper limit on the gravitational strain is 3.2e-25 for PSRJ1603-7202, and the equatorial ellipticity of PSRJ2124-3358 is less than 10e-6. Furthermore, our strain upper limit for the Crab pulsar is only three times greater than the fiducial spin-down limit.
gr-qc/0702043 [abs, ps, pdf, other] :: Title: On the onset of cosmological backreaction
Authors: Nan Li, Dominik J. Schwarz
Comments: 27 pages

Cosmological backreaction has been suggested as an explanation of dark energy and is heavily disputed since. We combine cosmological perturbation theory with Buchert's non-perturbative framework, calculate the relevant averaged observables up to second order in the comoving synchronous gauge, and discuss their gauge dependence. With the help of an integrability condition the leading second order contributions follow from the first order calculation.
We focus on the onset of cosmological backreaction, as a perturbative treatment is necessarily restricted to the era when the effect is still small. We map the backreaction effect on an effective fluid in the framework of the Friedmann-Lemaitre-Robertson-Walker model. Its effective equation of state w_eff turns out to be not only time dependent, but also a function of surface terms on the boundary of the averaged domain. For any finite domain these surface terms are nonzero in general and thus backreaction is for real.
hep-ph/0702036 [abs, ps, pdf, other] :: Title: Recoil Detection of the Lightest Neutralino in MSSM Singlet Extensions
Authors: Vernon Barger, Paul Langacker, Ian Lewis, Mat McCaskey, Gabe Shaughnessy, Brian Yencho
Comments: 30 pages, 11 figures

We investigate the correlated predictions of singlet extended MSSM models for direct detection of the lightest neutralino with its cosmological relic density. To illustrate the general effects of the singlet, we take heavy sleptons and squarks. We apply LEP, $(g-2)_\mu$ and perturbativity constraints. We find that the WMAP upper bound on the cold dark matter density limits much of the parameter space to regions where the lightest neutralino can be discovered in recoil experiments. The results for the NMSSM and UMSSM are typically similar to the MSSM since their light neutralinos have similar compositions and masses. In the n/sMSSM the neutralino is often very light and its recoil detection is within the reach of the CDMS II experiment. In general, most points in the parameter spaces of the singlet models we consider are accessible to the WARP experiment.
hep-ph/0702047 [abs, ps, pdf, other] :: Title: Vacuum Birefringence Caused by Arbitrary Spin Particles
Authors: S. I. Kruglov
Comments: 7 pages, no figures

The propagation of a linearly polarized laser beam in the external transverse magnetic field is studied. We take into consideration the vacuum polarization by arbitrary spin particles. With the help of the effective Lagrangian, Stokes parameters, induced ellipticity, and the angular rotation of the polarization plane of the beam are evaluated. It is shown that ellipticity measured in the PVLAS experiment can be caused by charged spin-3/2 particles possessing the mass $m_{3/2}=0.22$ MeV.
hep-th/0702051 [abs, ps, pdf, other] :: Title: On the Possibility of Quantum Gravity Effects at Astrophysical Scales
Authors: M. Reuter, H. Weyer
Comments: LaTeX, 18 pages, 4 figures. Invited contribution to the Int. J. Mod. Phys. D special issue on dark matter and dark energy

The nonperturbative renormalization group flow of Quantum Einstein Gravity (QEG) is reviewed. It is argued that at large distances there could be strong renormalization effects, including a scale dependence of Newton's constant, which mimic the presence of dark matter at galactic and cosmological scales.

Replacements

astro-ph/0508468 [abs, ps, pdf, other] :: Title: Observation of the Anisotropy of 10 TeV Primary Cosmic Ray Nuclei Flux with the Super-Kamiokande-I Detector
Authors: Gene Guillian, for the Super-Kamiokande Collaboration
Comments: 18 pages, 11 figures, submitted for publication in Phys. Rev. D
Note: replaced with revised version Thu, 8 Feb 2007 19:09:29 GMT (445kb)
astro-ph/0606126 [abs, ps, pdf, other] :: Title: Search for Diffuse Astrophysical Neutrino Flux Using Ultra-High-Energy Upward-Going Muons in Super-Kamiokande I
Authors: The Super-Kamiokande Collaboration: M.E.C. Swanson, et al
Comments: 10 pages, 6 figures, minor changes to match version published in ApJ
Journal-ref: Astrophys.J. 652 (2006) 206-215
Note: replaced with revised version Wed, 7 Feb 2007 21:10:48 GMT (64kb)
astro-ph/0608197 [abs, ps, pdf, other] :: Title: The Chemical Abundances of the Stellar Populations in the Leo I and Leo II dSph Galaxies
Authors: Tammy L. Bosler, Tammy A. Smecker-Hane, Peter B. Stetson
Note: replaced with revised version Thu, 8 Feb 2007 00:59:01 GMT (272kb)
astro-ph/0608209 [abs, ps, pdf, other] :: Title: On the Size of HII Regions around High Redshift Quasars
Authors: A. Maselli (1), S. Gallerani (2), A. Ferrara (2), T.R. Choudhury (3) ((1) MPA Garching, (2) SISSA Trieste, (3) CTS Kharagpur)
Comments: 5 pages, 3 figures, accepted for publication in MNRAS Letters
Note: replaced with revised version Thu, 8 Feb 2007 10:49:28 GMT (314kb)
astro-ph/0608499 [abs, ps, pdf, other] :: Title: Using Weak Lensing Dilution to Improve Measurements of the Luminous and Dark Matter in A1689
Authors: Elinor Medezinski, Tom Broadhurst, Keiichi Umetsu, Dan Coe, Narciso Benitez, Holland Ford, Yoel Rephaeli, Nobuo Arimoto, Xu Kong
Comments: 17 pages, 21 figures, revised version in response to referee comments,(added some discussion, references), conclusions unchanged. Accepted for publication in ApJ
Note: replaced with revised version Thu, 8 Feb 2007 16:34:08 GMT (155kb)
astro-ph/0608574 [abs, ps, pdf, other] :: Title: The Wide Brown Dwarf Binary Oph 1622-2405 and Discovery of A Wide, Low Mass Binary in Ophiuchus (Oph 1623-2402): A New Class of Young Evaporating Wide Binaries?
Authors: Laird M. Close, Ben Zuckerman, Inseok Song, Travis Barman, Christian Marois, Emily L. Rice, Nick Siegler, Bruce Macintosh, Eric E. Becklin, Randy Campbell, James E. Lyke, Al Conrad, David Le Mignant
Comments: Accepted version V2. Now 13 pages longer (45 total) due to a new discussion of the stability of the wide brown dwarf binary population, new summary Figure 17 now included, Astrophysical Journal 2007 in press
Note: replaced with revised version Thu, 8 Feb 2007 20:15:29 GMT (950kb)
astro-ph/0609773 [abs, ps, pdf, other] :: Title: Can N-body systems generate periodic gravitational waves?
Authors: Takamasa Chiba, Tatsunori Imai, Hideki Asada
Comments: 4 pages, 3 figures, version accepted for publication in MNRAS
Note: replaced with revised version Thu, 8 Feb 2007 01:00:16 GMT (143kb)
astro-ph/0610292 [abs, ps, pdf, other] :: Title: Evolution of cosmic structures in different environments in the quasispherical Szekeres model
Authors: Krzysztof Bolejko
Comments: 11 pages, 10 figures, accepted for publication in Physical Review D
Note: replaced with revised version Thu, 8 Feb 2007 15:42:59 GMT (397kb)
astro-ph/0610296 [abs, ps, pdf, other] :: Title: Non-Gaussianities in Multi-field Inflation
Authors: Thorsten Battefeld, Richard Easther
Comments: 23 pages; v.2: references added, typos corrected
Note: replaced with revised version Thu, 8 Feb 2007 17:40:25 GMT (19kb)
astro-ph/0610603 [abs, ps, pdf, other] :: Title: Outcome of Six Candidate Transiting Planets from a TrES Field in Andromeda
Authors: Francis T. O'Donovan, David Charbonneau, Roi Alonso, Timothy M. Brown, Georgi Mandushev, Edward W. Dunham, David W. Latham, Robert P. Stefanik, Guillermo Torres, Mark E. Everett
Comments: Submitted to ApJ, 22 July 2006. 14 pages, 8 figures, 4 tables. Updated references, author order and author affiliations. Substantial changes made to text. Accepted for publication in ApJ
Note: replaced with revised version Thu, 8 Feb 2007 01:22:04 GMT (552kb)
astro-ph/0611358 [abs, ps, pdf, other] :: Title: Gravitational bending of light by planetary multipoles and its measurement with microarcsecond astronomical interferometers
Authors: Sergei Kopeikin (University of Missouri-Columbia, USA), Valeri Makarov (Michelson Space Center, CalTech, USA)
Comments: 33 pages, 10 figures, accepted to Phys. Rev. D
Note: replaced with revised version Thu, 8 Feb 2007 17:44:08 GMT (190kb)
astro-ph/0612138 [abs, ps, pdf, other] :: Title: Precision Masses of the low-mass binary system GJ 623
Authors: Frantz Martinache, James P. Lloyd, Michael J. Ireland, Ryan S. Yamada, Peter G. Tuthill
Comments: 7 pages, 5 figures. Accepted for ApJ
Note: replaced with revised version Thu, 8 Feb 2007 15:42:07 GMT (44kb)
astro-ph/0612268 [abs, ps, pdf, other] :: Title: The 6C** sample of steep-spectrum radio sources: II - Redshift distribution and the space density of high-redshift radio galaxies
Authors: Maria J. Cruz, Matt J. Jarvis, Steve Rawlings, Katherine M. Blundell
Comments: 17 pages including 11 figures and 4 tables. This replacement matches the published MNRAS version; revised with minor edits, corrections to table 1, fig. 5 and to references. Results and conclusions are unaffected
Note: replaced with revised version Thu, 8 Feb 2007 12:26:22 GMT (119kb)
astro-ph/0701466 [abs, ps, pdf, other] :: Title: Accretion onto the Companion of Eta Carinae During the Spectroscopic Event. IV. the Disappearance of Highly Ionized Lines
Authors: Noam Soker (Technion, Israel)
Comments: ApJ, in press
Note: replaced with revised version Thu, 8 Feb 2007 05:09:46 GMT (38kb)
astro-ph/0701883 [abs, ps, pdf, other] :: Title: Stellar populations -- the next ten years
Authors: Joss Bland-Hawthorn
Comments: Invited review, IAUS 241, "Stellar Populations as Building Blocks of Galaxies," eds. Vazdekis, Peletier. 12 pages, 1 table. (The sideways table should print ok; there are 10 columns.)
Note: replaced with revised version Thu, 8 Feb 2007 04:02:39 GMT (42kb)
astro-ph/0702201 [abs, ps, pdf, other] :: Title: An Elementary Introduction to the JWKB Approximation
Authors: D. O. Gough
Comments: 13 pages, 1 figure
Note: replaced with revised version Thu, 8 Feb 2007 07:44:48 GMT (83kb)
gr-qc/0604087 [abs, ps, pdf, other] :: Title: Explaining Leibniz-equivalence as difference of non-inertial appearances: dis-solution of the Hole Argument and physical individuation of point-events
Authors: Luca Lusanna (INFN, Firenze), Massimo Pauri (Parma Univ. and INFN, Parma)
Comments: 37 pages, talk at Oxford Conference on Spacetime (2004), to appear in Studies in History and Philosophy of Modern Physics. Affiliations Corrected
Note: replaced with revised version Thu, 8 Feb 2007 16:29:28 GMT (46kb)
physics/0610286 [abs, ps, pdf, other] :: Title: A survey of energy loss calculations for heavy ions between 1 and 100 keV
Authors: A. Mangiarotti (1), M. I. Lopes (1 and 2), M. L. Benabderrahmane (3), V. Chepel (1 and 2), A. Lindote (1 and 2), J. Pinto da Cunha (1 and 2), P. Sona (4) ((1) LIP Laboratório de Instrumentação e Física Experimental de Partículas, Coimbra, Portugal, (2) Departamento de Física, Universidade de Coimbra, Coimbra, Portugal, (3) Physikalisches Institut der Universität Heidelberg, Heidelberg, Germany, (4) Dipartimento di Fisica, Universitá di Firenze and INFN Sez. Firenze, Italy)
Comments: Presented at the 10th International Symposium on Radiation Physics, 17-22 September, 2006, Coimbra, Portugal; style corrections, small change to fig.2
Subj-class: Instrumentation and Detectors
Note: replaced with revised version Thu, 8 Feb 2007 18:25:32 GMT (93kb)

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