Cross-listings


gr-qc/0604047 [abs, pdf] :
Title: Does a Teleconnection between Quantum States account for Missing Mass, Galaxy Ageing, Lensing Anomalies, Supernova Redshift, MOND, and Pioneer Blueshift?
Authors: Charles Francis
Comments: 20 pages, 12 figs. Submitted to Proc Roy Soc A

Empirical implications of a teleparallel displacement of momentum between initial and final quantum states, using conformally flat quantum coordinates are investigated. An exact formulation is possible in an FRW cosmology in which cosmological redshift is given by 1+z=a_0^2/a^2(t). This is consistent with current observation for a universe expanding at half the rate and twice as old as indicated by a linear law, and, in consequence, requiring a quarter of the critical density for closure. After rescaling Omega so that Omega=1 is critical density in the teleconnection model, it is found that for given cosmological parameters, Omega, Omega_k and Omega_Lambda, luminosity distance is a factor sqrt(1+z) greater than in the corresponding standard model. Best fits to data from the SuperNova Legacy Survey for a flat space Lambda cosmology is Omega=1.07 and for a Lambda=0 cosmology, Omega=1.15. It will require many observations of supernovae at z>1 to eliminate either the standard or teleconnection magnitude-redshift relation. Quantum coordinates exhibit an acceleration in time, resulting in the anomalous Pioneer blue-shift and in the flattening of galaxies' rotation curves. These appear as optical effects and do not affect classical motions. Milgrom's phenomenological law (MOND) is precisely obeyed. A no CDM teleconnection model resolves inconsistencies between galactic profiles found from lensing data, rotation curves and analytic models of galaxy evolution.

 
gr-qc/0604050 [abs, ps, pdf, other] :
Title: Tachyon Matter in Loop-Inspired Cosmology
Authors: A. A. Sen
Comments: 5 pages, Revtex style

An analytical approach for studying the cosmological scenario with a homogeneous tachyon field within the framework of loop quantum gravity is developed. Our study is based on the semi-classical regime where space time can be approximated as a continuous manifold, but matter Hamiltonian gets non-perturbative quantum corrections. A formal correspondence between classical and loop quantum cosmology is also established. The Hamilton-Jacobi method for getting exact solutions is constructed and some exact power-law as well as bouncing solutions are presented.

 

Replacements


astro-ph/0412643 [abs, ps, pdf, other] :
Title: The two-fluid analysis of the Kelvin-Helmholtz instability in dusty layer of a protoplanetary disk: A possible path toward the planetesimal formation through the gravitational instability
Authors: Shugo Michikoshi, Shu-ichiro Inutsuka
Comments: 43 pages, 30 figures
Journal-ref: Astrophys.J. 641 (2006) 1131
Note: replaced with revised version Fri, 14 Apr 2006 02:33:37 GMT (676kb)
 
astro-ph/0502052 [abs, ps, pdf, other] :
Title: Pure and loaded fireballs in SGR giant flares
Authors: Ehud Nakar, Tsvi Piran, Re'em Sari
Journal-ref: Astrophys. J. 635 (2005) 516
Note: replaced with revised version Fri, 14 Apr 2006 01:52:37 GMT (42kb)
 
astro-ph/0510347 [abs, ps, pdf, other] :
Title: Ly-alpha Radiative Transfer in Cosmological Simulations and Application to a z~8 Emitter
Authors: Argyro Tasitsiomi
Comments: 23 twocolumn pages, 11 figures; matches accepted version, to appear on ApJ
Note: replaced with revised version Fri, 14 Apr 2006 05:27:43 GMT (264kb)
 
astro-ph/0510389 [abs, ps, pdf, other] :
Title: Can WNM survive inside Molecular Clouds ?
Authors: P. Hennebelle, S. Inutsuka
Comments: accepted for publication in ApJ
Note: replaced with revised version Fri, 14 Apr 2006 09:35:42 GMT (71kb)
 
astro-ph/0602227 [abs, ps, pdf, other] :
Title: Millimeter Interferometric Investigations of the Energy Sources of Three Ultraluminous Infrared Galaxies, UGC 5101, Mrk 273, and IRAS 17208-0014, based on HCN to HCO+ Ratios
Authors: Masatoshi Imanishi (1), Kouichiro Nakanishi (2), Kotaro Kohno (3) ((1) NAO Japan, (2) NRO, (3) Univ of Tokyo)
Comments: 15 pages (emulateapj.sty), 8 figures (figures 1-5 resolution reduced), Accepted for publication in Astronomical Journal, A PDF file with high resolution is availble at this http URL
Note: replaced with revised version Fri, 14 Apr 2006 00:49:12 GMT (340kb)
 
astro-ph/0603052 [abs, ps, pdf, other] :
Title: Interacting Vector-like Dark Energy, the First and Second Cosmological Coincidence Problems
Authors: Hao Wei, Rong-Gen Cai
Comments: 15 pages, 8 tables, revtex4; v2: references added; v3: published version
Journal-ref: Phys.Rev. D73 (2006) 083002
Note: replaced with revised version Fri, 14 Apr 2006 08:12:22 GMT (16kb)
 
astro-ph/0603498 [abs, ps, pdf, other] :
Title: Magnetospheric Accretion in Classical T Tauri Stars
Authors: J. Bouvier, S.H.P. Alencar, T.J. Harries, C.M. Johns-Krull, M.M. Romanova
Comments: PPV conference paper, 16 pages, 10 figures; a typo in eq.(2.1) has been corrected
Note: replaced with revised version Fri, 14 Apr 2006 17:55:00 GMT (763kb)
 
astro-ph/0603500 [abs, ps, pdf, other] :
Title: Carmeli's cosmology fits data for an accelerating and decelerating universe without dark matter nor dark energy
Authors: Firmin J. Oliveira, John G. Hartnett
Comments: 19 pages, 7 figures, slightly revised version, improved the discussion and interpretation of results, accpeted for publication in Found. Phys. Letters
Note: replaced with revised version Fri, 14 Apr 2006 01:51:58 GMT (383kb)
 
astro-ph/0603690 [abs, ps, pdf, other] :
Title: Cross-correlation of WMAP 3rd year and the SDSS DR4 galaxy survey: new evidence for Dark Energy
Authors: A.Cabre, E.Gaztanaga, M.Manera, P.Fosalba, F.Castander (IEEC/CSIC)
Comments: 5 pages, submitted to MNRAS. We have fixed an error in the LRG selection function which resulted in an overestimation of the galaxy bias. The observational results are identical but our new modeling seems to agree better with the standard cosmological constant cosmology
Note: replaced with revised version Fri, 14 Apr 2006 10:51:35 GMT (127kb)
 
astro-ph/0603719 [abs, ps, pdf, other] :
Title: GeV photons from up-scattering of supernova shock breakout X-rays by an outside GRB jet
Authors: Xiang-Yu Wang, Peter Meszaros
Comments: accepted for publication in ApJ Letters, 4 emulateapj pages, no figures
Note: replaced with revised version Fri, 14 Apr 2006 16:24:49 GMT (9kb)
 
astro-ph/0603838 [abs, ps, pdf, other] :
Title: Hubble Imaging Excludes Cosmic String Lens
Authors: Eric Agol, Craig J. Hogan, Richard M. Plotkin
Comments: 3 pages, 2 figures. Higher quality versions of figures are available online. Bibliography modified. Accepted as a brief report to Phys. Rev. D
Note: replaced with revised version Fri, 14 Apr 2006 19:27:32 GMT (118kb)
 
astro-ph/0604111 [abs, ps, pdf, other] :
Title: Hypervelocity Stars. I. The Spectroscopic Survey
Authors: Warren R. Brown, Margaret J. Geller, Scott J. Kenyon, Michael J. Kurtz (SAO)
Comments: 10 pages, uses emulateapj, accepted by ApJ
Note: replaced with revised version Thu, 13 Apr 2006 21:43:03 GMT (314kb)
 
astro-ph/0604284 [abs, ps, pdf, other] :
Title: Millimagnitude Optical Photometry for the Transiting Planetary Candidate OGLE-TR-109
Authors: Jose Miguel Fernandez, Dante Minniti, Grzegorz Pietrzynski, Wolfgang Gieren, Maria Teresa Ruiz, Manuela Zoccali, Andrzej Udalski, Thomas Szeifert
Comments: 24 pages (including figures) submitteed to ApJ, Accepted. 1 replacement (updated references)
Note: replaced with revised version Fri, 14 Apr 2006 14:04:43 GMT (373kb)
 
astro-ph/0604298 [abs, ps, pdf, other] :
Title: The Non-Gaussianity of Racetrack Inflation Models
Authors: Cheng-Yi Sun, De-Hai Zhang
Comments: 8 pages, no figures; PACS and Keywords are added
Note: replaced with revised version Fri, 14 Apr 2006 07:30:06 GMT (5kb)
 
hep-th/0601105 [abs, ps, pdf, other] :
Title: High-energy effects on the spectrum of inflationary gravitational wave background in braneworld cosmology
Authors: Takashi Hiramatsu
Comments: 21 pages, 15 figures
Journal-ref: Phys.Rev. D73 (2006) 084008
Note: replaced with revised version Fri, 14 Apr 2006 00:31:52 GMT (733kb)
 

For subscribe options to combined physics archives,
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Cross-listings


gr-qc/0602056 [abs, ps, pdf, other] :
Title: Relativistic periastron precession and frame dragging of stellar orbits in the central arcsecond of our Galaxy
Authors: G. V. Kraniotis
Comments: LaTeX file, 30 pages, typos fixed

The geodesic equations of general relativity that describe motion of a test particle in Kerr spacetime are solved exactly including the contribution from the cosmological constant. By applying the exact solution for the precession of the point of closest approach for the orbit of the test particle around the Kerr field, we calculate the relativistic effect of periapsis advance for the observed orbits of S-stars in the central arcsecond of our galaxy, assuming that the galactic centre is a Kerr black hole, for various values of the Kerr parameter including those supported by recent observations. The observation of the predicted effects can provide an important test of the theory of general relativity. In addition, we derive the exact solution of timelike non-spherical polar and non-polar orbits. Exact expressions for the periastron (periapsis) advance and frame dragging (Lense-Thirring) effect for a test particle in a polar, non-spherical orbit in the Kerr gravitational field are derived and applied for practical calculations around the galactic centre. We subsequently derive an analytical expression for the periapsis precession for the equatorial non-circular orbit of a test particle around a rotating mass whose surrounding curved spacetime geometry is described by the Kerr-de Sitter field.

 
gr-qc/0604062 [abs, ps, pdf, other] :
Title: Vacuum Energy: Myths and Reality
Authors: G.E. Volovik
Comments: 20 pages, 2 figures, prepared for the special issue of Int. J. Mod. Phys. devoted to dark energy and dark matter, IJMP style
Subj-class: General Relativity and Quantum Cosmology; Statistical Mechanics

We discuss the main myths related to the vacuum energy and cosmological constant, such as: ``unbearable lightness of space-time''; the dominating contribution of zero point energy of quantum fields to the vacuum energy; non-zero vacuum energy of the false vacuum; dependence of the vacuum energy on the overall shift of energy; the absolute value of energy only has significance for gravity; the vacuum energy depends on the vacuum content; cosmological constant changes after the phase transition; zero-point energy of the vacuum between the plates in Casimir effect must gravitate, that is why the zero-point energy in the vacuum outside the plates must also gravitate; etc. All these and some other conjectures appear to be wrong when one considers the thermodynamics of the ground state of the quantum many-body system, which mimics macroscopic thermodynamics of quantum vacuum. In particular, in spite of the ultraviolet divergence of the zero-point energy, the natural value of the vacuum energy is comparable with the observed dark energy. That is why the vacuum energy is the plausible candidate for the dark energy.

 
hep-ph/0604132 [abs, ps, pdf, other] :
Title: Gravitinos from Heavy Scalar Decay
Authors: Takehiko Asaka, Shuntaro Nakamura, Masahiro Yamaguchi
Comments: 14 pages, 8 figures

Cosmological issues of the gravitino production by the decay of a heavy scalar field $X$ are examined, assuming that the damped coherent oscillation of the scalar once dominates the energy of the universe. The coupling of the scalar field to a gravitino pair is estimated both in spontaneous and explicit supersymmetry breaking scenarios, with the result that it is proportional to the vacuum expectation value of the scalar field in general. Cosmological constraints depend on whether the gravitino is stable or not, and we study each case separately. For the unstable gravitino with $M_{3/2} \sim$ 100GeV--10TeV, we obtain not only the upper bound, but also the lower bound on the reheating temperature after the $X$ decay, in order to retain the success of the big-bang nucleosynthesis. It is also shown that it severely constrains the decay rate into the gravitino pair. For the stable gravitino, similar but less stringent bounds are obtained to escape the overclosure by the gravitinos produced at the $X$ decay. The requirement that the free-streaming effect of such gravitinos should not suppress the cosmic structures at small scales eliminates some regions in the parameter space, but still leaves a new window of the gravitino warm dark matter. Implications of these results to inflation models are discussed. In particular, it is shown that modular inflation will face serious cosmological difficulty when the gravitino is unstable, whereas it can escape the constraints for the stable gravitino. A similar argument offers a solution to the cosmological moduli problem, in which the moduli is relatively heavy while the gravitino is light.

 
hep-th/0604085 [abs, ps, pdf, other] :
Title: The Effect of alpha' Corrections in String Gas Cosmology
Authors: Monica Borunda, Lotfi Boubekeur
Comments: 28 pages

In the Brandenberger-Vafa scenario of string gas cosmology, the Universe starts as a small torus of string length dimension filled with a hot gas of strings. In such extreme conditions, in addition to the departure from Einstein gravity which is due to the dilaton, one expects higher curvature corrections to be relevant. Motivated by this fact, we study the effect of the leading alpha'^3 corrections in type IIB string theory for this scenario. Within the assumptions of: weak coupling, adiabatic evolution and thermodynamical equilibrium, we perturbatively solved the corresponding equations of motion in two different cases: (i) the isotropic case which is governed by a single scale factor and (ii) the anisotropic case given by two different scale factors. In the first case, we consider two regimes (ia) The Hagedorn regime where the string gas equation of state is that of pressureless dust, and (ib) the radiation regime. In the second case, (ii), we only considered a radiation-like equation of state. We found that the inclusion of alpha' corrections affects the scale factor(s) in opposite way in the Hagedorn and in the radiation regimes, acting as a driving force for the first one and a damping force for the second one. This effect is small for reasonable initial conditions and it is only observed at early times. Morever it is bigger in the Hagedorn regime than in the radiation regime. We also analyzed the fixed points of the system. We found that there exists a stable dS fixed point, which does not exist when the corrections are neglected.

 

Replacements


astro-ph/0508174 [abs, ps, pdf, other] :
Title: The Cosmic Near Infrared Background: Remnant Light from Early Stars
Authors: Elizabeth Fernandez, Eiichiro Komatsu
Comments: 37 pages, 7 figures, (v2) Changes to abstract to emphasize that the excess near infrared background can solely be explained by stars with significant metals. (Metal-free stars are not necessarily needed.) (v3) Expanded discussion on the metallicity constraint. Accepted for publication in ApJ
Note: replaced with revised version Fri, 14 Apr 2006 20:20:49 GMT (97kb)
 
astro-ph/0511007 [abs, ps, pdf, other] :
Title: Supernovae observations and cosmic topology
Authors: M.J. Reboucas, J.S. Alcaniz, B. Mota, M. Makler
Comments: 5 pages, 2 figures. Minor changes and a ref. added. To appear in A&A (2006)
Note: replaced with revised version Fri, 14 Apr 2006 21:01:00 GMT (45kb)
 
astro-ph/0511676 [abs, ps, pdf, other] :
Title: Physical properties of the BLR of NGC 5548: Long term variability
Authors: L. C. Popovic, A. I. Shapovalova, V. H. Chavushyan, D. Ilic, A. N. Burenkov, A. Mercado
Comments: 13 pages, 8 figures; The revised version after including suggestions of the referee
Note: replaced with revised version Mon, 17 Apr 2006 14:09:49 GMT (59kb)
 
astro-ph/0512005 [abs, ps, pdf, other] :
Title: Recent Timing Studies on RXTE Observations of 4U 1538-52
Authors: A. Baykal (1), S.C. Inam (2), E. Beklen (1,3) ((1) Physics Department, Middle East Technical University, Ankara, Turkey (2) Department of Electrical and Electronics Engineering, Baskent University, Ankara, Turkey (3) Physics Department, Suleyman Demirel University, Isparta, Turkey)
Comments: Revised version. Accepted for publication in A&A
Note: replaced with revised version Mon, 17 Apr 2006 19:30:18 GMT (120kb)
 
astro-ph/0512090 [abs, ps, pdf, other] :
Title: Diffusion of Cosmic Rays in Expanding Universe. (I)
Authors: V. Berezinsky, A. Z. Gazizov
Comments: The version with some changes, in the form accepted for publication in Ap.J
Note: replaced with revised version Mon, 17 Apr 2006 14:12:34 GMT (11kb)
 
astro-ph/0512176 [abs, ps, pdf, other] :
Title: Evidence of a Change in the Long Term Spin-down Rate of the X-ray Pulsar 4U 1907+09
Authors: A. Baykal (1), S.C. Inam (2), E. Beklen (1,3) ((1) Physics Department, Middle East Technical University, Ankara, Turkey (2) Department of Electrical and Electronics Engineering, Baskent University, Ankara, Turkey (3) Physics Department, Suleyman Demirel University, Isparta, Turkey)
Comments: Revised version. Accepted for publication in MNRAS
Note: replaced with revised version Mon, 17 Apr 2006 19:40:11 GMT (37kb)
 
astro-ph/0601054 [abs, ps, pdf, other] :
Title: GRB efficiency and Possible Physical Processes Shaping the Early Afterglow
Authors: Yizhong Fan (HU and PMO), Tsvi Piran (HU)
Comments: Accepted for publication in MNRAS, minor revision
Note: replaced with revised version Mon, 17 Apr 2006 14:40:58 GMT (108kb)
 
astro-ph/0601619 [abs, ps, pdf, other] :
Title: Sub-GeV flashes in $\gamma-$ray burst afterglows as probes of underlying bright UV flares
Authors: Yizhong Fan, Tsvi Piran
Comments: Accepted for publication in MNRAS Letters, minor revision
Note: replaced with revised version Mon, 17 Apr 2006 14:43:11 GMT (32kb)
 
astro-ph/0602413 [abs, ps, pdf, other] :
Title: Final Results from the BIMA CMB Anisotropy Survey and Search for Signature of the SZ effect
Authors: K.S. Dawson, W.L. Holzapfel, J.E. Carlstrom, M. Joy, S.J. LaRoque
Comments: Accepted by ApJ, 17 pages
Note: replaced with revised version Fri, 14 Apr 2006 23:32:14 GMT (932kb)
 
astro-ph/0603366 [abs, ps, pdf, other] :
Title: Chaplygin inspired Inflation
Authors: O. Bertolami, V. Duvvuri
Comments: Revtex4, 5 pages. New version comprises a lengthier discussion about the nature of the model and a refinement of the numerical results; observational results are shown to be compatible with WMAP 3 year data
Note: replaced with revised version Mon, 17 Apr 2006 09:56:43 GMT (10kb)
 
astro-ph/0603817 [abs, ps, pdf, other] :
Title: Inhomogeneous Big Bang Nucleosynthesis Revisited
Authors: J.F. Lara, T. Kajino, G.J. Mathews
Comments: 11 pages, 4 figures, More references were added on 4/14/06
Journal-ref: Phys.Rev. D73 (2006) 083501
Note: replaced with revised version Fri, 14 Apr 2006 23:50:51 GMT (102kb)
 
astro-ph/0604204 [abs, ps, pdf, other] :
Title: The CMB Initial Data and Fundamental Operator Quantization of General Relativity
Authors: Victor N. Pervushin
Comments: 12 pages, submitted to XXXIII International Conference On High Energy Physics, Particle astrophysics & cosmology (ICHEP'06 Moscow, 26.07-02.08, 2006; this http URL)
Note: replaced with revised version Sun, 16 Apr 2006 18:34:32 GMT (36kb)
 
astro-ph/0604282 [abs, ps, pdf, other] :
Title: The cosmological information content of the halo-model dark-matter power spectrum
Authors: Mark C. Neyrinck, István Szapudi (IfA, Hawaii), Christopher D. Rimes (JILA, Colorado)
Comments: 5 pages, 4 figures, submitted to MNRAS letters. Clarified an appendix explanation
Note: replaced with revised version Fri, 14 Apr 2006 23:14:25 GMT (84kb)
 
hep-th/0411106 [abs, ps, pdf, other] :
Title: Gibbons-Maeda-de Sitter Black Holes
Authors: Chang Jun Gao, Shuang Nan Zhang
Comments: 7 pages, submitted to CQG
Note: replaced with revised version Mon, 17 Apr 2006 00:01:09 GMT (8kb)
 
hep-th/0601205 [abs, ps, pdf, other] :
Title: Sp-brane accelerating cosmologies
Authors: Viktor Baukh, Alexander Zhuk
Comments: 17 pages, 4 figures, accepted in PRD
Note: replaced with revised version Sat, 15 Apr 2006 06:03:55 GMT (73kb)
 
hep-th/0603062 [abs, ps, pdf, other] :
Title: The oscillating dark energy: future singularity and coincidence problem
Authors: Shin'ichi Nojiri, Sergei D. Odintsov
Comments: LaTeX file, 9 pages, version to appear in PLB
Note: replaced with revised version Sat, 15 Apr 2006 12:58:07 GMT (12kb)
 

For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
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For help on viewing and making submissions, see this http URL
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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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Cross-listings


gr-qc/0604063 [abs, ps, pdf, other] :
Title: Cosmologies with Energy Exchange
Authors: John D. Barrow, T. Clifton
Comments: 11 pages, 1 figure

We provide a simple mathematical description of the exchange of energy between two fluids in an expanding Friedmann universe with zero spatial curvature. The evolution can be reduced to a single non-linear differential equation which we solve in physically relevant cases and provide an analysis of all the possible evolutions. Particular power-law solutions exist for the expansion scale factor and are attractors at late times under particular conditions. We show how a number of problems studied in the literature, such as cosmological vacuum energy decay, particle annihilation, and the evolution of a population of evaporating black holes, correspond to simple particular cases of our model. In all cases we can determine the effects of the energy transfer on the expansion scale factor. We also consider the situation in the presence of anti-decaying fluids and so called phantom fluids which violate the dominant energy conditions.

 
gr-qc/0604067 [abs, ps, pdf, other] :
Title: Probing the non-linear structure of general relativity with black hole mergers
Authors: K.G. Arun, B.R. Iyer, M.S.S. Qusailah, B.S. Sathyaprakash
Comments: 5 pages, 4 figures

Observations of the inspiral of massive binary black holes (BBH) in the Laser Interferometer Space Antenna (LISA) and stellar mass binary black holes in the European Gravitational-Wave Observatory (EGO) offer an unique opportunity to test the non-linear structure of general relativity. For a binary composed of two non-spinning black holes, the non-linear general relativistic effects depend only on the masses of the constituents. In a recent letter, we explored the possibility of a test to determine all the post-Newtonian coefficients in the gravitational wave-phasing. However, mutual covariances dilute the effectiveness of such a test. In this communication, we propose a more powerful test in which the various post-Newtonian coefficients in the gravitational wave phasing are systematically measured by treating three of them as independent parameters and demanding their mutual consistency. LISA (EGO) will observe BBH inspirals with a signal-to-noise ratio of more than 1000 (100) and thereby test the self-consistency of each of the nine post-Newtonian coefficients that have so-far been computed, by measuring the lower order coefficients to a relative accuracy of $\sim 10^{-5}$ (respectively, $\sim 10^{-4}$) and the higher order coefficients to a relative accuracy in the range $10^{-4}$-0.1 (respectively, $10^{-3}$-1).

 
gr-qc/0604071 [abs, ps, pdf, other] :
Title: Weaker Gravity at Submillimetre Scales in Braneworlds Models
Authors: Claudia de Rham, Tetsuya Shiromizu, Andrew J. Tolley

Braneworld models typically predict gravity to grow stronger at short distances. In this paper, we consider braneworlds with two types of additional curvature couplings, a Gauss-Bonnet term in the bulk, and an Einstein-Hilbert term on the brane. In the regime where these terms are dominant over the bulk EH term, linearized gravity becomes weaker at short distances on the brane. In both models, the weakening of gravity is tied to the presence of ghosts in the graviton mass spectrum. We find that the ordinary coupling of matter to gravity is recovered at low energies/long wavelengths on the brane. We give some implications for cosmology and show its compatibility with observations. We also discuss the stability of compact stars.

 
hep-th/0604086 [abs, ps, pdf, other] :
Title: DGP Specteroscopy
Authors: Christos Charmousis, Ruth Gregory, Nemanja Kaloper, Antonio Padilla
Comments: 54 pages, 1 figure, JHEP latex

We systematically explore the spectrum of gravitational perturbations in codimension-1 DGP braneworlds, and find a 4D ghost on the self-accelerating branch of solutions. The ghost appears for any value of the brane tension, although depending on the sign of the tension it is either the helicity-0 component of the lightest localized massive tensor of mass $0<m^2 < 2H^2$ for positive tension, the scalar `radion' for negative tension, or their admixture for vanishing tension. Because the ghost is gravitationally coupled to the brane-localized matter, the self-accelerating solutions are not a reliable benchmark for cosmic acceleration driven by gravity modified in the IR. In contrast, the normal branch of solutions is ghost-free, and so these solutions are perturbatively safe at large distance scales. We further find that when the $\mathbb{Z}_2$ orbifold symmetry is broken, new tachyonic instabilities, which are much milder than the ghosts, appear on the self-accelerating branch. Finally, using exact gravitational shock waves we analyze what happens if we relax boundary conditions at infinity. We find that non-normalizable bulk modes, if interpreted as 4D phenomena, may open the door to new ghost-like excitations.

 

Replacements


astro-ph/0411023 [abs, ps, pdf, other] :
Title: Cooling of strange stars in the color-flavor locked phase with a rotating crust Cooling of strange stars in the color-flavor locked phase with a rotating crust
Authors: Yu Yunwei, Zheng Xiaoping Yu Yunwei, Zheng Xiaoping
Comments: 9 pages, 3 figures 9 pages, 3 figures
Journal-ref: A&A 450??2006??1071
Note: replaced with revised version Tue, 18 Apr 2006 07:43:30 GMT (302kb)
 
astro-ph/0509186 [abs, ps, pdf, other] :
Title: Enhancement of the $\bar\nu_e$ flux from astrophysical sources by two photon annihilation interactions
Authors: Soebur Razzaque, Peter Meszaros, Eli Waxman
Comments: 6 pages, 3 figures, PRD accepted
Note: replaced with revised version Tue, 18 Apr 2006 19:32:19 GMT (59kb)
 
astro-ph/0509422 [abs, ps, pdf, other] :
Title: Cosmological perturbations in the Palatini formulation of modified gravity
Authors: Tomi Koivisto, Hannu Kurki-Suonio
Comments: 14 pages; the published version (+ an appendix)
Journal-ref: Class.Quant.Grav. 23 (2006) 2355-2369
Note: replaced with revised version Tue, 18 Apr 2006 12:12:09 GMT (22kb)
 
astro-ph/0510519 [abs, ps, pdf, other] :
Title: Cosmological constraints on f(R) gravity theories within the Palatini approach
Authors: M. Amarzguioui, O. Elgaroy, D.F. Mota, T. Multamaki
Comments: 9 pages (A&A), 7 figures. Minor changes to text plus added some references. Accepted for publication in A&A
Note: replaced with revised version Tue, 18 Apr 2006 13:20:24 GMT (128kb)
 
astro-ph/0512006 [abs, ps, pdf, other] :
Title: An inhomogeneous alternative to dark energy?
Authors: Havard Alnes, Morad Amarzguioui, Oyvind Gron
Comments: 8 pages (REVTeX4), 4 figures. v2: Minor changes to text plus added some references. Accepted for publication in PRD
Journal-ref: Phys. Rev. D 73, 083519 (2006)
Note: replaced with revised version Tue, 18 Apr 2006 15:45:22 GMT (30kb)
 
astro-ph/0512291 [abs, ps, pdf, other] :
Title: Ultraviolet Radiation Constraints around the Circumstellar Habitable Zones
Authors: Andrea P. Buccino, Guillermo A. Lemarchand, Pablo J. D. Mauas
Comments: 34 pages, 8 figures Accepted for publication by Icarus
Note: replaced with revised version Tue, 18 Apr 2006 15:20:32 GMT (76kb)
 
astro-ph/0601576 [abs, ps, pdf, other] :
Title: Cosmic Microwave Background Polarization
Authors: James G. Bartlett
Comments: Review given at TAUP 2005; References added; Additional references
Note: replaced with revised version Tue, 18 Apr 2006 16:21:02 GMT (75kb)
 
astro-ph/0602031 [abs, ps, pdf, other] :
Title: The matter power spectrum in f(R) gravity
Authors: Tomi Koivisto
Comments: 5 pages, 3 figures; v2: the published version
Journal-ref: Phys.Rev. D73 (2006) 083517
Note: replaced with revised version Tue, 18 Apr 2006 13:50:02 GMT (20kb)
 
astro-ph/0603828 [abs, ps, pdf, other] :
Title: The interaction of gravitational waves with strongly magnetized plasmas
Authors: H. Isliker, L. Vlahos
Comments: 5 pages, 7 figures, Eq. (7) and corresponding text is modified
Note: replaced with revised version Tue, 18 Apr 2006 19:51:43 GMT (49kb)
 
astro-ph/0604038 [abs, ps, pdf, other] :
Title: N-Body Simulations of Alternate Gravity Models
Authors: Hans F. Stabenau, Bhuvnesh Jain (U. Penn)
Comments: 24 pages, 8 figures, submitted to PRD; added references and second scenario for lensing
Note: replaced with revised version Tue, 18 Apr 2006 16:47:07 GMT (87kb)
 
astro-ph/0604349 [abs, ps, pdf, other] :
Title: Revisiting the characteristics of the spectral lags in short gamma-ray bursts
Authors: Zhibin Zhang, J. G. Deng, L. Z. Lv
Comments: 16 pages, 7 figures, 1 table
Note: replaced with revised version Tue, 18 Apr 2006 08:13:20 GMT (92kb)
 
gr-qc/0512158 [abs, ps, pdf, other] :
Title: Generalized Chaplygin gas model, supernovae and cosmic topology
Authors: M.C. Bento, O. Bertolami, M.J. Rebouças, P.T. Silva
Comments: Revtex 4, 8 pages, 10 figures, 1 table; version to match the published one
Journal-ref: Phys.Rev. D73 (2006) 043504
Note: replaced with revised version Tue, 18 Apr 2006 10:58:19 GMT (281kb)
 
hep-th/0510109 [abs, ps, pdf, other] :
Title: Dynamical Relaxation of Dark Energy: A Solution to Early Inflation, Late-time Acceleration and the Cosmological Constant Problem
Authors: Benedict M.N. Carter, Ishwaree P. Neupane
Comments: 6 pages, 2 figures; v2 title changed; v3 small changes improving explanations, refs added; v4 more discussions and refs added
Note: replaced with revised version Tue, 18 Apr 2006 06:50:00 GMT (119kb)
 
hep-th/0604014 [abs, ps, pdf, other] :
Title: Late acceleration and $w=-1$ crossing in induced gravity
Authors: Pantelis S. Apostolopoulos, Nikolaos Tetradis
Comments: 7 pages, no figures, RevTex 4.0; (v2) new references are added, minor corrections and expanded discussion
Note: replaced with revised version Tue, 18 Apr 2006 09:09:41 GMT (16kb)
 
nucl-th/0509038 [abs, ps, pdf, other] :
Title: Unusual photon isospin mixing effects on the compact matter thermodynamics
Authors: Ji-sheng Chen
Comments: Improved and revised version with typos corrected; title changed a little; references added
Subj-class: Nuclear Theory; Strongly Correlated Electrons
Note: replaced with revised version Tue, 18 Apr 2006 09:50:07 GMT (11kb)
 
cond-mat/0603804 [abs, ps, pdf, other] :
Title: Surface Tension and the Cosmological Constant
Authors: Joseph Samuel, Supurna Sinha
Comments: Dedicated to Rafael Sorkin on his 60th birthday (revised version has added references)
Subj-class: Soft Condensed Matter
Note: replaced with revised version Tue, 18 Apr 2006 06:17:14 GMT (51kb)
 

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gr-qc/0604072 [abs, ps, pdf, other] :
Title: Information-preserving black holes still do not preserve baryon number and other effective global quantum numbers
Authors: Dejan Stojkovic, Glenn D. Starkman, Fred C. Adams
Comments: Honorable Mention on Gravity Essay Competition 2005; Published in the special Essay issue of Int.J.Mod.Phys
Journal-ref: Int.J.Mod.Phys.D14:2293-2300,2005

It has been claimed recently that the black hole information-loss paradox has been resolved: the evolution of quantum states in the presence of a black hole is unitary and information preserving. We point out that, contrary to some claims in literature, information-preserving black holes still violate baryon number and any other quantum number which follows from an effective (and thus approximate) or anomalous symmetry.

 
gr-qc/0604074 [abs, ps, pdf, other] :
Title: The quantum black hole in 2+1 dimensions
Authors: B. Ram, J. Shirley
Comments: 5 pages, no figs

In this paper we investigate the quantum nature of a 2+1 dimensional black hole using the method [arXiv: gr-qc/0504030] which earlier revealed the quantum nature of a black hole in 3+1 dimensions.

 
hep-ph/0604150 [abs, ps, pdf, other] :
Title: Relic density of neutralino dark matter in the MSSM with CP violation
Authors: G. Belanger, F. Boudjema, S. Kraml, A. Pukhov, A. Semenov
Comments: 36 pages, 21 figures (low resolution). A version with high-resolution figures can be downloaded from this http URL

We calculate the relic density of dark matter in the MSSM with CP violation. We analyse various scenarios of neutralino annihilation: the cases of a bino, bino-wino and bino-Higgsino LSP, annihilation through Higgs, as well as sfermion coannihilation scenarios. Large phase effects are found, on the one hand due to shifts in the masses, on the other hand due to modifications of the couplings. Taking special care to disentangle the effects in masses and couplings, we demonstrate that the presence of CP phases can have a significant influence on the neutralino relic abundance. Typical variations in \Omega h^2 solely from modifications in the couplings are O(10%-100%), but can reach an order of magnitude in some cases.

 
hep-th/0604075 [abs, ps, pdf, other] :
Title: Escaping from the black hole?
Authors: E. Babichev, V. Mukhanov, A. Vikman
Comments: 4 pages, 2 figures

We show that if there exists a special kind of Born-Infeld type scalar field, then one can send information from inside a black hole. This information is encoded in perturbations of the field propagating in non-trivial scalar field backgrounds, which serves as a "new ether". Although the theory is Lorentz-invariant it allows, nevertheless, the superluminal propagation of perturbations with respect to the "new ether". We found the stationary solution for background, which describes the accretion of the scalar field onto a black hole. Examining the propagation of small perturbations around this solution we show the signals emitted inside the horizon can reach an observer located outside the black hole. We discuss possible physical consequences of this result.

 
physics/0604144 [abs, ps, pdf, other] :
Title: Astronomy, Astrophysics, and Space Physics in Greece
Authors: V. Charmandaris (Univ. of Crete)
Comments: Paper to be published in ``Organizations and Strategies in Astronomy -- Vol. 7, Ed. A. Heck, 2006, Springer, Dordrecht". Higher resolution version available at this http URL
Subj-class: Physics and Society

In the present document I review the current organizational structure of Astronomy, Astrophysics and Space Physics in Greece. I briefly present the institutions where professional astronomers are pursuing research, along with some notes of their history, as well as the major astronomical facilities currently available within Greece. I touch upon topics related to graduate studies in Greece and present some statistics on the distribution of Greek astronomers. Even though every attempt is made to substantiate all issues mentioned, some of the views presented have inevitably a personal touch and thus should be treated as such.

 

Replacements


astro-ph/0509873 [abs, ps, pdf, other] :
Title: The dependence of clustering on galaxy properties
Authors: Cheng Li, Guinevere Kauffmann, Y.P. Jing, Simon D.M. White, Gerhard Boerner, F.Z. Cheng
Comments: 17 pages, 14 figures; reference updated and text slightly changed to match the published version; Tables 5 and 6 are available at this http URL
Journal-ref: Mon.Not.Roy.Astron.Soc. 368 (2006) 21
Note: replaced with revised version Wed, 19 Apr 2006 14:21:29 GMT (200kb)
 
astro-ph/0509874 [abs, ps, pdf, other] :
Title: The dependence of the pairwise velocity dispersion on galaxy properties
Authors: Cheng Li, Y.P. Jing, Guinevere Kauffmann, Gerhard Boerner, Simon D.M. White, F.Z. Cheng
Comments: 14 pages, 13 figures; reference updated and text slightly changed to match the published version; data of measurements of power spectrum and PVD available at this http URL
Journal-ref: Mon.Not.Roy.Astron.Soc. 368 (2006) 37
Note: replaced with revised version Wed, 19 Apr 2006 14:27:26 GMT (278kb)
 
astro-ph/0512086 [abs, ps, pdf, other] :
Title: New evidence for strong nonthermal effects in Tycho's supernova remnant
Authors: H.J.Voelk, E.G.Berezhko, L.T.Ksenofontov
Comments: 4 pages, 3 figures. Submitted to ApJ Letters
Note: replaced with revised version Wed, 19 Apr 2006 07:09:48 GMT (41kb)
 
astro-ph/0512120 [abs, ps, pdf, other] :
Title: Critical revision of the ZEPLIN-I sensitivity to WIMP interactions
Authors: A. Benoit, M. Chapellier, G. Chardin, L. Dumoulin, K. Eitel, J. Gascon, G. Gerbier, C. Goldbach, J. Jochum, A. de Lesquen, G. Nollez, F. Proebst, W. Seidel
Comments: 8 pages, 4 figures, minor corrections, two references updated, final version accepted in Physics Letters B
Note: replaced with revised version Wed, 19 Apr 2006 13:34:21 GMT (256kb)
 
astro-ph/0602116 [abs, ps, pdf, other] :
Title: Cosmic Evolution with Early and Late Acceleration Inspired by Dual Nature of the Ricci Scalar Curvature
Authors: S.K.Srivastava
Comments: 27pages
Note: replaced with revised version Wed, 19 Apr 2006 10:27:33 GMT (17kb)
 
astro-ph/0602124 [abs, ps, pdf, other] :
Title: Voigt Profile Fitting to Quasar Absorption Lines: An Analytic Approximation to the Voigt-Hjerting Function
Authors: Thorsten Tepper García
Comments: 11 pages, 8 figures, accepted for publication in MNRAS after referee's revision and corresponding changes
Note: replaced with revised version Wed, 19 Apr 2006 13:55:12 GMT (519kb)
 
astro-ph/0602211 [abs, pdf] :
Title: Microquasar Jet Irradiation of the Proto-Solar Nebula?
Authors: Yousaf Butt, Nikos Prantzos
Comments: ApJL, submitted; revised with referee suggestions. Conclusions unchanged
Note: replaced with revised version Wed, 19 Apr 2006 16:34:12 GMT (143kb)
 
astro-ph/0603257 [abs, ps, pdf, other] :
Title: The History of Cosmological Star Formation: Three Independent Approaches and a Critical Test Using the Extragalactic Background Light
Authors: Kentaro Nagamine (UCSD), Jeremiah P. Ostriker (Princeton), Masataka Fukugita (ICRR, IAS), Renyue Cen (Princeton)
Comments: 36 page, 9 figures. Submitted to ApJ. Minor changes
Note: replaced with revised version Tue, 18 Apr 2006 21:08:41 GMT (126kb)
 
astro-ph/0603599 [abs, ps, pdf, other] :
Title: High energy diffuse gamma-ray emission of the galactic disk and Galactic Cosmic-Ray spectra
Authors: Thoudam Satyendra
Comments: 30 pages, 12 figures, uses elsart.cls, some misprints are corrected, accepted in Astroparticle Physics
Note: replaced with revised version Wed, 19 Apr 2006 08:59:26 GMT (62kb)
 
astro-ph/0604071 [abs, ps, pdf, other] :
Title: Dark energy parameterizations and their effect on dark halos
Authors: Lamartine Liberato, Rogerio Rosenfeld
Comments: 17 pages, 15 figures
Note: replaced with revised version Wed, 19 Apr 2006 14:52:35 GMT (1178kb)
 
astro-ph/0604384 [abs, pdf] :
Title: Star Formation in the Era of the Three Great Observatories
Authors: Scott J. Wolk, Norbert Schulz, John Stauffer, Nancy Evans, Leisa Townsley, Tom Megeath, Dave Huenemoerder, Claus Leitherer, Ray Jayawardana
Comments: Conference Summary "White Paper", Accepted by PASP, 9 pages including 3 figures
Note: replaced with revised version Wed, 19 Apr 2006 17:44:45 GMT (297kb)
 
gr-qc/0602014 [abs, ps, pdf, other] :
Title: Cosmological expansion governed by a scalar field from a 5D vacuum
Authors: Mauricio Bellini (Mar del Plata University & CONICET)
Comments: version accepted in Phys. Lett. B
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics; Space Physics
Note: replaced with revised version Wed, 19 Apr 2006 19:42:10 GMT (8kb)
 

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physics/0604114 [abs, pdf] :
Title: Direct reading of charge multipliers with a self-triggering CMOS analog chip with 105k pixels at 50 micron pitch
Authors: R. Bellazzini, G. Spandre, M. Minuti, L. Baldini, A. Brez, F. Cavalca, L. Latronico, N. Omodei, M. M. Massai, C. Sgro, E. Costa, P. Soffitta F. Krummenacher, R. DeOliveira
Comments: 14 pages, 18 figures, to be submitted to Nuclear Instruments and methode A
Subj-class: Instrumentation and Detectors

We report on a large active area (15x15mm2), high channel density (470 pixels/mm2), self-triggering CMOS analog chip that we have developed as pixelized charge collecting electrode of a Micropattern Gas Detector. This device, which represents a big step forward both in terms of size and performance, is the last version of three generations of custom ASICs of increasing complexity. The CMOS pixel array has the top metal layer patterned in a matrix of 105600 hexagonal pixels at 50 micron pitch. Each pixel is directly connected to the underneath full electronics chain which has been realized in the remaining five metal and two poly-silicon layers of a 0.18 micron VLSI technology. The chip has customizable self-triggering capability and includes a signal pre-processing function for the automatic localization of the event coordinates. In this way it is possible to reduce significantly the readout time and the data volume by limiting the signal output only to those pixels belonging to the region of interest. The very small pixel area and the use of a deep sub-micron CMOS technology has brought the noise down to 50 electrons ENC. Results from in depth tests of this device when coupled to a fine pitch (50 micron on a triangular pattern) Gas Electron Multiplier are presented. The matching of readout and gas amplification pitch allows to get optimal results. The application of this detector for Astronomical X-Ray Polarimetry is discussed. The experimental detector response to polarized and unpolarized X-ray radiation when working with two gas mixtures and two different photon energies is shown. Results from a full MonteCarlo simulation for several galactic and extragalactic atronomical sources are also reported.

 

Replacements


astro-ph/0504167 [abs, ps, pdf, other] :
Title: Power Spectrum Analysis of Far-IR Background Fluctuations in Spitzer Maps at 160 Microns
Authors: Bruce Grossan, George F. Smoot
Comments: Please download the superior-quality, single file PDF, see additional figures of higher quality, and look for updates at this http URL .(This version has submission text, but not submission graphics.)
Note: replaced with revised version Thu, 20 Apr 2006 07:35:04 GMT (22kb)
 
astro-ph/0504641 [abs, ps, pdf, other] :
Title: Testing the accuracy of the Hydro-PM approximation in numerical simulations of the Lyman-alpha forest
Authors: Matteo Viel, Martin G. Haehnelt, Volker Springel
Comments: 13 pages, 10 figures, 1 table. MNRAS. Discussion clarified, one more figure
Journal-ref: Mon.Not.Roy.Astron.Soc. 367 (2006) 1655-1665
Note: replaced with revised version Thu, 20 Apr 2006 10:00:32 GMT (38kb)
 
astro-ph/0508073 [abs, ps, pdf, other] :
Title: A low level of extragalactic background light as revealed by gamma-rays from blazars
Authors: H.E.S.S. Collaboration: F. Aharonian, et al
Comments: 15 pages, 7 figures. Accepted by Nature, in press (April 20 issue). Replaced with published version. Title changed, text and figures rearranged with addition of Supplementary Information
Journal-ref: Nature 440 (2006) p1018
Note: replaced with revised version Wed, 19 Apr 2006 20:34:26 GMT (81kb)
 
astro-ph/0508588 [abs, ps, pdf, other] :
Title: Chandra Observations of Gas Stripping in the Elliptical Galaxy NGC 4552 in the Virgo Cluster
Authors: M. Machacek, C. Jones, W.R. Forman, P.E.J. Nulsen (CfA)
Comments: 31 pages, 12 figures, ApJ, in press; paper split into 2 parts, Paper I(sec 1-3) here, added figs and discussion to conform to published version; Paper II (sec. 4) in astro-ph/0604406
Note: replaced with revised version Thu, 20 Apr 2006 17:56:48 GMT (303kb)
 
astro-ph/0509563 [abs, ps, pdf, other] :
Title: The matter power spectrum from the Lyman-alpha forest: an optical depth estimate
Authors: S. Zaroubi (Groningen), M. Viel (IoA), A. Nusser (Technion & NAOJ), M. Haehnelt (IoA), T.-S. Kim (IoA, AIP)
Comments: Replaced with the MNRAS accepted version. Changes include additional figure and modifed text
Note: replaced with revised version Thu, 20 Apr 2006 12:24:03 GMT (399kb)
 
astro-ph/0512078 [abs, ps, pdf, other] :
Title: Far-flung Filaments of Ejecta in the Young Supernova Remnant G292.0+1.8
Authors: P. Frank Winkler, Knox S. Long
Comments: 32 pages including 10 figures, and 3 tables, accepted for publication in AJ. Higher resolution versions of the figures and a pdf of the manuscript can be found at this http URL
Note: replaced with revised version Wed, 19 Apr 2006 23:33:20 GMT (687kb)
 
astro-ph/0601415 [abs, ps, pdf, other] :
Title: Light Element Production in the Circumstellar Matter of Energetic Type Ic Supernovae
Authors: Ko Nakamura, Susumu Inoue, Shinya Wanajo, Toshikazu Shigeyama
Comments: 12 pages, 2 figures, revised with referee suggestions, final version accepted in ApJ Letters
Note: replaced with revised version Thu, 20 Apr 2006 05:38:43 GMT (82kb)
 
astro-ph/0602161 [abs, ps, pdf, other] :
Title: Solar system constraints on multi-field theories of modified dynamics
Authors: R.H. Sanders
Comments: 11 pages, 6 figures, submitted MNRAS, revised in response to referee, improved clarity, one figure added, additional references
Note: replaced with revised version Thu, 20 Apr 2006 14:11:05 GMT (49kb)
 
astro-ph/0602536 [abs, ps, pdf, other] :
Title: Depolarization canals and interstellar turbulence
Authors: Andrew Fletcher, Anvar Shukurov
Comments: 20 pages, 8 figures. Contribution to the proceedings of the conference 'Polarization 2005', September 12 to 15, Orsay, France. Replaced one figure, changed three figure captions
Note: replaced with revised version Thu, 20 Apr 2006 09:15:06 GMT (396kb)
 
astro-ph/0603061 [abs, ps, pdf, other] :
Title: The spatial clustering of ultraluminous infrared galaxies over 1.5<z<3
Authors: Duncan Farrah (Cornell), Carol Lonsdale (UCSD & Caltech), Colin Borys (Toronto), Fan Fang (Caltech), Ian Waddington (Sussex), Seb Oliver (Sussex), Michael Rowan-Robinson (Imperial College, London), Tom Babbedge (Imperial College, London), David Shupe (Caltech), Mari Polletta (UCSD), Harding Smith (UCSD), Jason Surace (Caltech)
Comments: ApJ Letters, accepted. Updated to correct an error in the correlation length calculations
Journal-ref: 2006, ApJ, 641, L17
Note: replaced with revised version Thu, 20 Apr 2006 16:00:58 GMT (46kb)
 
astro-ph/0604328 [abs, ps, pdf, other] :
Title: Outflows from the high-mass protostars NGC 7538 IRS1/2 observed with bispectrum speckle interferometry -- Signatures of flow precession
Authors: S. Kraus, Y. Balega, M. Elitzur, K.-H. Hofmann, Th. Preibisch, A. Rosen, D. Schertl, G. Weigelt, E. T. Young
Comments: 20 pages; 8 figures; Accepted by A&A on April 10, 2006; Image quality reduced due to astro-ph file size limitations
Note: replaced with revised version Thu, 20 Apr 2006 09:27:32 GMT (932kb)
 
astro-ph/0604339 [abs, pdf] :
Title: Telescope Spectrophotometric and Absolute Flux Calibration, and National Security Applications, Using a Tunable Laser on a Satellite
Authors: Justin Albert, William Burgett, Jason Rhodes
Comments: 11 pages, 4 figures
Note: replaced with revised version Thu, 20 Apr 2006 00:34:31 GMT (950kb)
 
astro-ph/0604390 [abs, ps, pdf, other] :
Title: The Formation Epoch of Early-Type Galaxies in the z ~ 0.9 CL1604 Supercluster
Authors: N.L. Homeier (JHU), S. Mei (JHU), J.P. Blakeslee (WSU), M. Postman (STScI), B. Holden (UCSC), H.C. Ford (JHU), L.D. Bradley (JHU), R. Demarco (JHU), M. Franx (Leiden), G.D. Illingworth (UCSC), M.J. Jee (JHU), F. Menanteau (JHU), P. Rosati (ESO-Garching), A. van der Wel (JHU), A. Zirm (JHU)
Comments: replaced to fix bizarre shift in vertical centering, ApJ accepted
Note: replaced with revised version Thu, 20 Apr 2006 14:13:11 GMT (135kb)
 
astro-ph/0604412 [abs, pdf] :
Title: The Carbon-Rich Gas in the Beta Pictoris Circumstellar Disk
Authors: Aki Roberge, Paul D. Feldman, Alycia J. Weinberger, Magali Deleuil, Jean-Claude Bouret
Comments: Accepted for publication in Nature. PDF document, 12 pages. Supplementary information may be found at this http URL *** Version 2 : Removed extraneous publication information, per instructions from the Nature editor. No other changes made
Note: replaced with revised version Thu, 20 Apr 2006 03:48:51 GMT (451kb)
 
gr-qc/0511061 [abs, ps, pdf, other] :
Title: Post-Newtonian corrections to the motion of spinning bodies in NRGR
Authors: Rafael A. Porto
Comments: 18 pages, 9 figures. Typos corrected, to appear in Physical Review D
Note: replaced with revised version Thu, 20 Apr 2006 19:16:28 GMT (65kb)
 
hep-ph/0510214 [abs, ps, pdf, other] :
Title: Charged lepton mixing and oscillations from neutrino mixing in the early Universe
Authors: D. Boyanovsky, C. M. Ho
Comments: 16 pages, 2 figs, same results with more discussions
Note: replaced with revised version Thu, 20 Apr 2006 18:55:57 GMT (56kb)
 
hep-th/0602242 [abs, ps, pdf, other] :
Title: Inflation from Superstring/M-Theory Compactification with Higher Order Corrections II -- Case of Quartic Weyl Terms --
Authors: Kenta Akune, Kei-ichi Maeda, Nobuyoshi Ohta
Comments: 40 pages, 11 figures, v2: additional explanations, refs. added, to appear in PRD
Note: replaced with revised version Thu, 20 Apr 2006 13:01:52 GMT (328kb)
 
physics/0603250 [abs, ps, pdf, other] :
Title: Highly Charged Ions in a Dilute Plasma: An Exact Asymptotic Solution Involving Strong Coupling
Authors: Lowell S. Brown, David C. Dooling, Dean L. Preston
Comments: 23 pages, 2 figures. To be published in Physical Review E. Expanded discussion of the equation of state included for clarity
Subj-class: Plasma Physics; Mathematical Physics
Note: replaced with revised version Wed, 19 Apr 2006 20:12:18 GMT (64kb)
 

For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
-----------------------------------------------------------------------------
For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
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Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL