Cross-listings

hep-ph/0607229 [abs, ps, pdf, other] :: Title: Can a vector field be responsible for the curvature perturbation in the Universe?
Authors: Konstantinos Dimopoulos
Comments: 8 pages, revtex

I investigate the possibility that the observed curvature perturbation is due to a massive vector field. To avoid generating a large scale anisotropy the vector field is not taken to be driving inflation. Instead it is assumed to become important after inflation when it may dominate the Universe and imprint its perturbation spectrum before its decay, as in the curvaton scenario. It is found that, to generate a scale invariant spectrum of perturbations the mass-squared of the vector field has to be negative and comparable to the Hubble scale during inflation. After inflation the mass-squared must become positive so that the vector field engages into oscillations. It is shown that, such an oscillating vector field behaves as pressureless matter and does not lead to large scale anisotropy when it dominates the Universe. The possibilitiy of realising this scenario in supergravity is also outlined.
hep-th/0607074 [abs, ps, pdf, other] :: Title: Space, Time, and Tachyon Condensation
Authors: Brett McInnes
Comments: 13 pages, one diagram

It has often been suggested that strings propagating on spatial sections with one or more dimensions compactified to a circle might help to resolve the initial singularity in cosmology. Assuming that Inflation occurred, it can however be shown, under extremely mild assumptions, that spatial sections having first homology groups which contain an element of infinite order actually \emph{worsen} the singularity problem. We illustrate the force of this observation by explaining its consequences for recent ideas about winding strings and tachyon condensation as resolutions of the initial singularity. We argue that, in order to understand the initial singularity, one has to understand why the versions of de Sitter spacetime with compact flat spatial sections are themselves geodesically incomplete. To this end, we study the problem of the "twins" in these spacetimes. This study suggests that the singularity is not "resolved" but is instead made physically inaccessible.
hep-th/0607140 [abs, ps, pdf, other] :: Title: Nonlocal black-hole thermodynamics and massive remnants
Authors: H. Nikolic
Comments: 7 pages, 1 figure included

To alleviate the black-hole (BH) information problem, we study a holographic-principle-inspired nonlocal model of Hawking radiation in which radiated particles created at different times all have the same temperature corresponding to the instantaneous BH mass. Consequently, the black hole loses mass not only by continuously radiating new particles, but also by continuously warming previously radiated particles. The conservation of energy implies that the radiation stops when the mass of the black hole reaches the half of the initial BH mass, leaving a massive BH remnant with a mass much above the Planck scale.
hep-th/0607144 [abs, ps, pdf, other] :: Title: Black Holes with Flavors of Quantum Hair?
Authors: Gia Dvali
Comments: 22 pages, Latex
Subj-class: High Energy Physics - Theory; Atomic Physics; Mesoscopic Systems and Quantum Hall Effect

We show that black holes can posses a long-range quantum hair of super-massive tensor fields, which can be detected by Aharonov-Bohm tabletop interference experiments, in which a quantum-hairy black hole, or a remnant particle, passes through the loop of a magnetic solenoid. The long distance effect does not decouple for an arbitrarily high mass of the hair-providing field. Because Kaluza-Klein and String theories contain infinite number of massive tensor fields, we study black holes with quantum Kaluza-Klein hair. We show that in five dimensions such a black hole can be interpreted as a string of `combed' generalized magnetic monopoles, with their fluxes confined along it. For the compactification on a translation-invariant circle, this substructure uncovers hidden flux conservation and quantization of the monopole charges, which constrain the quantum hair of the resulting four-dimensional black hole. For the spin-2 quantum hair this result is somewhat unexpected, since the constituent `magnetic' charges have no `electric' counterparts. Nevertheless, the information about their quantization is encoded in singularity.

Replacements

astro-ph/0310038 [abs, ps, pdf, other] :: Title: The Canada-France Deep Fields III: Photometric Redshift Distribution to I(AB) ~ 24
Authors: M. Brodwin, S. J. Lilly, C. Porciani, H. J. McCracken, O. Le Fevre, S. Foucaud, D. Crampton, Y. Mellier
Comments: 19 Pages, 8 Tables, 13 Figures. Replaced to match published version. Main results unchanged
Journal-ref: Astrophys.J.Suppl. 162 (2006) 20-37
Note: replaced with revised version Fri, 21 Jul 2006 02:58:24 GMT (158kb)
astro-ph/0512196 [abs, ps, pdf, other] :: Title: On the "canonical behaviour" of the X-ray afterglows of the Gamma Ray Bursts observed with Swift's XRT
Authors: Shlomo Dado, Arnon Dar, A. De Rujula
Comments: Accepted for publication in ApJL
Note: replaced with revised version Thu, 20 Jul 2006 20:17:42 GMT (343kb)
astro-ph/0603822 [abs, ps, pdf, other] :: Title: Internal kinematics of modelled interacting disc galaxies
Authors: T. Kronberger (1 and 2), W. Kapferer (1), S. Schindler (1), A. Boehm (2 and 3), E. Kutdemir (2), B. L. Ziegler (2) ((1) Institute for Astro- and Particlephysics, Innsbruck, Austria, (2) Institute for Astrophysics, Goettingen, Germany, (3) Astrophysikalisches Institut Potsdam, Potsdam, Germany)
Comments: 13 pages, 14 figures, accepted for publication in A&A, some improvements and changes, main conclusions are unaffected
Note: replaced with revised version Fri, 21 Jul 2006 07:18:22 GMT (804kb)
astro-ph/0605271 [abs, ps, pdf, other] :: Title: Constraints on Sterile Neutrino Dark Matter
Authors: Kevork Abazajian, Savvas M. Koushiappas (Los Alamos National Laboratory)
Comments: 9 pages, 3 figures; v2 includes discussion of astro-ph/0605706 and matches version to appear in Phys. Rev. D
Note: replaced with revised version Fri, 21 Jul 2006 17:29:43 GMT (36kb)
astro-ph/0605323 [abs, ps, pdf, other] :: Title: The Feedback-Regulated Growth of Black Holes and Bulges through Gas Accretion and Starbursts in Cluster Central Dominant Galaxies
Authors: D. A. Rafferty, B. R. McNamara (Ohio Univ.), P. E. J. Nulsen (CfA), M. W. Wise (Univ. of Amsterdam)
Comments: 17 pages, 6 figures, accepted to ApJ. Minor changes to text and figures
Note: replaced with revised version Thu, 20 Jul 2006 20:44:48 GMT (348kb)
astro-ph/0605424 [abs, ps, pdf, other] :: Title: Direct X-ray Constraints on Sterile Neutrino Warm Dark Matter
Authors: Casey R. Watson, John F. Beacom, Hasan Yuksel, Terry P. Walker (Ohio State)
Comments: 8 pages, 2 figures, minor revisions, accepted for publication in Physical Review D
Note: replaced with revised version Fri, 21 Jul 2006 17:12:47 GMT (35kb)
astro-ph/0605567 [abs, ps, pdf, other] :: Title: Gravitational Waves from Light Cosmic Strings: Backgrounds and Bursts with Large Loops
Authors: Craig J. Hogan
Comments: 22 pages, Latex, 1 figure, submitted to Phys Rev D; minor corrections and clarifications added
Note: replaced with revised version Fri, 21 Jul 2006 17:31:08 GMT (65kb)
astro-ph/0606328 [abs, ps, pdf, other] :: Title: New perspectives on strong z=0.5 MgII absorbers: are halo-mass and equivalent width anti-correlated?
Authors: Nicolas Bouche (MPE, Garching), Michael T. Murphy (Institute of Astronomy, Cambridge), Celine Peroux (ESO, Garching), Istvan Csabai (Eotvos Lorand University, Budapest), Vivienne Wild (MPA, Garching)
Comments: 18 pages, 12 EPS figures, Accepted by MNRAS. Full table of MgII absorbers available at this http URL, minor changes to match the published text
Note: replaced with revised version Fri, 21 Jul 2006 15:50:00 GMT (186kb)
astro-ph/0607197 [abs, ps, pdf, other] :: Title: Are Diffuse High Energy Neutrinos and Gamma-Rays from Starburst Galaxies Observable?
Authors: F.W. Stecker (NASA/GSFC)
Comments: 7 pages, expanded version which includes a discussion of diffuse gamma-rays from starbursts. Numerical result changed from v1. General conclusion unchanged
Note: replaced with revised version Fri, 21 Jul 2006 14:32:13 GMT (15kb)
astro-ph/0607363 [abs, ps, pdf, other] :: Title: The Rise Time of Type Ia Supernovae from the Supernova Legacy Survey
Authors: A. Conley, D. A. Howell, A. Howes, M. Sullivan, P. Astier, D. Balam, S. Basa, R. G. Carlberg, D. Fouchez, J. Guy, I. Hook, J. D. Neill, R. Pain, K. Perrett, C. J. Pritchet, N. Regnault, J. Rich, R. Taillet, E. Auborg, J. Bronder, R. S. Ellis, S. Fabbro, M. Filiol, D. Le Borgne, N. Palanque-Delabrouille, S. Perlmutter, P. Ripoche (the SNLS Collaboration)
Comments: Accepted for publication in AJ; replaced potentially confusing sentence related to Gallagher et al. (2005) reference
Note: replaced with revised version Fri, 21 Jul 2006 19:14:31 GMT (95kb)
gr-qc/0605078 [abs, ps, pdf, other] :: Title: On Doppler tracking in cosmological spacetimes
Authors: Matteo Carrera, Domenico Giulini
Comments: 10 pages, 1 figure. Discussion largely extended, computational error corrected, conclusion adapted
Subj-class: General Relativity and Quantum Cosmology; Space Physics
Note: replaced with revised version Fri, 21 Jul 2006 16:18:18 GMT (27kb)

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Cross-listings

gr-qc/0503066 [abs, ps, pdf, other] :: Title: A Michelson interferometer in the field of a plane gravitational wave
Authors: Nikodem J. Poplawski
Comments: 13 pages, 2 figures; published version
Journal-ref: J. Math. Phys. 47, 072501 (2006)

We treat the problem of a Michelson interferometer in the field of a plane gravitational wave in the framework of general relativity. The arms of the interferometer are regarded as the world lines of the light beams, whose motion is determined by the Hamilton-Jacobi equation for a massless particle. In the case of a weak monochromatic wave we find that the formula for the delay of a light beam agrees with the result obtained by solving the linearized coupled Einstein-Maxwell equations. We also calculate this delay in the next (quadratic) approximation.

Replacements

astro-ph/0508323 [abs, ps, pdf, other] :: Title: A Parameterized Variable Dark Energy Model: Structure Formation and Observational Constraints
Authors: Sepehr Arbabi Bidgoli, M. Sadegh Movahed, Sohrab Rahvar
Comments: 18 pages, 10 figures, accepted in Int. J. Mod. Phys. D
Note: replaced with revised version Mon, 24 Jul 2006 09:24:40 GMT (477kb)
astro-ph/0601133 [abs, ps, pdf, other] :: Title: SZE Signals in Cluster Models
Authors: Beth A. Reid, David N. Spergel
Comments: 40 pages, 9 figures, accepted by ApJ; minor changes to original sections, addition of section "Constraining ICM mass fraction" with discussion of the use of the kinetic SZ effect
Note: replaced with revised version Sun, 23 Jul 2006 21:15:02 GMT (380kb)
astro-ph/0602024 [abs, ps, pdf, other] :: Title: On the Formation and Progenitor of PSR J0737-3039: New Constraints on the Supernova Explosion Forming Pulsar B
Authors: B. Willems, J. Kaplan, T. Fragos, V. Kalogera, K. Belczynski
Comments: Accepted by Physical Review D. Revised version incorporates a detailed rebuttal of the remarks made by Piran & Shaviv in astro-ph/0603649 (see Appendix A) and also minor clarifications requested by an anonymous referee
Note: replaced with revised version Mon, 24 Jul 2006 16:57:48 GMT (209kb)
astro-ph/0602320 [abs, ps, pdf, other] :: Title: Local dark matter clumps and the cosmic ray positron excess
Authors: Daniel T. Cumberbatch, Joseph Silk
Comments: Full-effects of diffusion of the positrons in the ISM have now been incorporated. (Submitted to MNRAS)
Note: replaced with revised version Mon, 24 Jul 2006 16:33:54 GMT (60kb)
astro-ph/0603617 [abs, ps, pdf, other] :: Title: Updating reionization scenarios after recent data
Authors: T. Roy Choudhury, A. Ferrara
Comments: Typos corrected. MNRAS Letters in press
Note: replaced with revised version Mon, 24 Jul 2006 05:11:11 GMT (46kb)
astro-ph/0604118 [abs, ps, pdf, other] :: Title: Sunrise: Polychromatic Dust Radiative Transfer in Arbitrary Geometries
Authors: Patrik Jonsson (Santa Cruz Institute of Particle Physics)
Comments: 22 pages, 11 figures, submitted to MNRAS. Changed based on referee response. Section on benchmarks expanded
Note: replaced with revised version Fri, 21 Jul 2006 22:51:01 GMT (167kb)
astro-ph/0604121 [abs, ps, pdf, other] :: Title: Shapes of Stellar Systems and Dark Halos from Simulations of Galaxy Major Mergers
Authors: Gregory S. Novak, Thomas J. Cox, Joel R. Primack, Patrik Jonsson, Avishai Dekel
Comments: 4 pages, 5 figures. Minor changes to match published version
Journal-ref: ApJL 646:L9 (2006)
Note: replaced with revised version Sat, 22 Jul 2006 00:47:06 GMT (117kb)
astro-ph/0604149 [abs, ps, pdf, other] :: Title: The End of the Reionization Epoch Probed by Ly-alpha Emitters at z=6.5 in the Subaru Deep Field
Authors: N. Kashikawa, K. Shimasaku, M.A. Malkan, M. Doi, Y. Matsuda, M. Ouchi, Y. Taniguchi, C. Ly, T. Nagao, M. Iye, K. Motohara, T. Murayama, K. Murozono, K. Nariai, K. Ohta, S. Okamura, T. Sasaki, Y. Shioya, M. Umemura
Comments: To appear in APJ vol.648. Only minor corrections have been made. Black&White version is available at this http URL
Note: replaced with revised version Sat, 22 Jul 2006 06:21:24 GMT (758kb)
astro-ph/0604430 [abs, ps, pdf, other] :: Title: Neutrino Astronomy and Cosmic Rays Spectroscopy at Horizons
Authors: D.Fargion
Comments: 24 pages, 24 figures, Conference NO-VE, Venice, 09-02-2006
Journal-ref: Third NO-VE Int. Workshop on Neutrino Oscillations,7-10 Feb. 2006
Note: replaced with revised version Mon, 24 Jul 2006 16:33:26 GMT (985kb)
astro-ph/0604458 [abs, ps, pdf, other] :: Title: Relic gravitational waves and their detection
Authors: Wen Zhao, Yang Zhang
Comments: 21 pages, 3 figures
Note: replaced with revised version Sat, 22 Jul 2006 12:48:36 GMT (143kb)
astro-ph/0605436 [abs, ps, pdf, other] :: Title: A simple model for the size-evolution of elliptical galaxies
Authors: Sadegh Khochfar, Joseph Silk
Comments: 4 pages, submitted to ApJ Letters, replaced by accepted version
Note: replaced with revised version Mon, 24 Jul 2006 11:14:41 GMT (254kb)
astro-ph/0605480 [abs, ps, pdf, other] :: Title: Limits on the Transient Ultra-High Energy Neutrino Flux from Gamma-Ray Bursts (GRB) Derived from RICE Data
Authors: D. Besson, S. Razzaque, J. Adams, P. Harris
Comments: 20 pages, 6 figures. Minor changes with one new figure, accepted for publication in Astropart. Phys
Note: replaced with revised version Mon, 24 Jul 2006 14:44:10 GMT (75kb)
astro-ph/0605534 [abs, ps, pdf, other] :: Title: On the Rayleigh-Taylor Instability of Radio Bubbles in Galaxy Clusters
Authors: Fabio Pizzolato, Noam Soker (Technion)
Comments: Replaced with the version accepted by the MNRAS
Note: replaced with revised version Mon, 24 Jul 2006 14:50:11 GMT (134kb)
astro-ph/0606106 [abs, ps, pdf, other] :: Title: Formation of Primordial Stars in a LCDM Universe
Authors: Naoki Yoshida (Nagoya University), Kazuyuki Omukai (NAOJ), Lars Hernquist (CfA-Harvard), Tom Abel (KIPAC, Stanford)
Comments: 27 pages, 13 embedded figures. Revised version
Note: replaced with revised version Sat, 22 Jul 2006 00:54:57 GMT (300kb)
astro-ph/0606429 [abs, ps, pdf, other] :: Title: Difficulties for Compact Composite Object Dark Matter
Authors: Daniel T. Cumberbatch, Joseph Silk, Glenn D. Starkman
Note: replaced with revised version Mon, 24 Jul 2006 14:30:14 GMT (10kb)
astro-ph/0607023 [abs, ps, pdf, other] :: Title: Disentangling the synchrotron and Inverse Compton variability in the X-ray emission of the intermediate BL Lac object S5 0716+71
Authors: E. Ferrero, S.J. Wagner, D. Emmanoulopoulos, L. Ostorero
Comments: 14 pages, 9 figures, 5 tables, A&A in press, minor corrections to match the version to be published
Note: replaced with revised version Mon, 24 Jul 2006 12:45:01 GMT (222kb)
astro-ph/0607126 [abs, ps, pdf, other] :: Title: Interacting Dark Energy and Dark Matter: observational Constraints from Cosmological Parameters
Authors: Bin Wang, Jiadong Zang, Chi-Yong Lin, Elcio Abdalla, S. Micheletti
Comments: 20 pages, 9 figures
Note: replaced with revised version Sat, 22 Jul 2006 13:21:20 GMT (502kb)
astro-ph/0607302 [abs, ps, pdf, other] :: Title: Bayesian Photometric Redshifts for Weak Lensing Applications
Authors: Edward Edmondson, Lance Miller, Christian Wolf
Comments: 13 pages, 10 figures, accepted for publication in MNRAS. Updated contact address
Note: replaced with revised version Sun, 23 Jul 2006 14:05:04 GMT (55kb)
astro-ph/0607341 [abs, ps, pdf, other] :: Title: Astrophysical Effects of Scalar Dark Matter Miniclusters
Authors: Kathryn M. Zurek, Craig J. Hogan, Thomas R. Quinn (UW, Physics and Astronomy Departments)
Comments: 13 pages, 12 figures. References added; no other changes
Note: replaced with revised version Mon, 24 Jul 2006 19:24:58 GMT (766kb)
astro-ph/0607457 [abs, ps, pdf, other] :: Title: Eruptive Mass Loss in Very Massive Stars and Population III Stars
Authors: Nathan Smith
Comments: 12 pages, 4 figs. To appear in proceedings of STScI May Symposium 2006, "Massive Stars: From Pop III and GRBs to the Milky Way". New Version
Note: replaced with revised version Mon, 24 Jul 2006 18:28:19 GMT (514kb)
astro-ph/0607501 [abs, ps, pdf, other] :: Title: Have we detected the most luminous ULX so far?
Authors: G. Miniutti (1), G. Ponti (2,3), M. Dadina (3), M. Cappi (3), G. Malaguti (3), A.C. Fabian (1), P. Gandhi (1,4) ((1) Institute of Astronomy, Cambridge; (2) Dip. di Astronomia, Univ. di Bologna; (3) IASF/INAF Bologna; (4) ESO, Santiago)
Comments: MNRAS Letters in press; minor correction at the end of Section2
Note: replaced with revised version Mon, 24 Jul 2006 12:11:42 GMT (783kb)
gr-qc/0602081 [abs, ps, pdf, other] :: Title: Physics of dark energy particles
Authors: C. G. Boehmer, T. Harko
Comments: 10 pages, no figures; typos corrected, 4 references added; 1 reference added; reference added
Note: replaced with revised version Sun, 23 Jul 2006 21:14:07 GMT (9kb)
gr-qc/0607057 [abs, ps, pdf, other] :: Title: Galactic Halos are Einstein Clusters of WIMPs
Authors: Kayll Lake
Comments: 4 pages revtex4 1 figure. Further clarifications and changes in references
Note: replaced with revised version Mon, 24 Jul 2006 16:55:48 GMT (69kb)
hep-ex/0602043 [abs, ps, pdf, other] :: Title: Time-Domain Measurement of Broadband Coherent Cherenkov Radiation
Authors: P. Miocinovic, R. C. Field, P. W. Gorham, E. Guillian, R. Milincic, D. Saltzberg, D. Walz, D. Williams
Comments: 10 pages, 9 figures, accepted by Phys. Rev. D
Note: replaced with revised version Sat, 22 Jul 2006 03:35:45 GMT (114kb)
hep-ph/0507120 [abs, ps, pdf, other] :: Title: Dynamics of Gravity in a Higgs Phase
Authors: Nima Arkani-Hamed, Hsin-Chia Cheng, Markus A. Luty, Shinji Mukohyama, Toby Wiseman
Comments: 54 pages, 15 figures; postscript figures downloadable from this http URL ; v2: substantial revision to section 5 on bounds
Note: replaced with revised version Fri, 21 Jul 2006 22:09:44 GMT (604kb)
hep-th/0605039 [abs, ps, pdf, other] :: Title: Dark energy cosmology from higher-order, string-inspired gravity and its reconstruction
Authors: Shin'ichi Nojiri, Sergei D. Odintsov, M. Sami
Comments: 15 pages, 3 figures, minor changes, published version
Note: replaced with revised version Mon, 24 Jul 2006 03:32:30 GMT (25kb)

For subscribe options to combined physics archives,
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Cross-listings

cond-mat/0607605 [abs, ps, pdf, other] :: Title: Pathway Model, Superstatistics, Tsallis Statistics, and a Generalized Measure of Entropy
Authors: A.M. Mathai, H.J. Haubold
Comments: LaTeX, 22 pages
Subj-class: Statistical Mechanics

The pathway model of Mathai (2005) is shown to be inferable from the maximization of a certain generalized entropy measure. This entropy is a variant of the generalized entropy of order 'alpha', considered in Mathai and Rathie (1975), and it is also associated with Shannon, Boltzmann-Gibbs, Renyi, Tsallis, and Havrda-Charvat entropies. The generalized entropy measure introduced here is also shown to haveinteresting statistical properties and it can be given probabilistic interpretations in terms of inaccuracy measure, expected value, and information content in a scheme. Particular cases of the pathway model are shown to be Tsallis statistics (Tsallis, 1988) and superstatistics introduced by Beck and Cohen (2003). The pathway model's connection to fractional calculus is illustrated by considering a fractional reaction equation.
gr-qc/0607090 [abs, ps, pdf, other] :: Title: $\Lambda$ effect in the cosmological expansion of voids
Authors: Henri-Hugues Fliche (LMMT - EA2596), Roland Triay (CPT)
Comments: 17 pages, 7 figures
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics

The dynamical effect of the cosmological constant $\Lambda$ on a single spherical void evolving in a Friedmann-Lema\^{i}tre universe is investigated within a non linear perturbation of Newton-Friedmann models. The void expansion shows a huge initial burst, which freezes asymptotically up to match Hubble expansion. $\Lambda$-effect on the kinematics intervenes significantly by amplifying the expansion rate at redshift $z\sim 1.7$, what corresponds to the loitering period. As a result, the size increases with $\Lambda$ (what can be interpreted by the "repulsion gravitational of vacuum"). A stability criterion is ensured for spatially closed Friedmann models, since the empty regions are swept out.
gr-qc/0607094 [abs, ps, pdf, other] :: Title: Two Loop Scalar Bilinears for Inflationary SQED
Authors: T. Prokopec (U. Utrecht), N. C. Tsamis (U. Crete), R. P. Woodard (U. Florida)
Comments: 43 pages, LaTeX 2epsilon, 5 figures (using axodraw.sty)

We evaluate the one and two loop contributions to the expectation values of two coincident and gauge invariant scalar bilinears in the theory of massless, minimally coupled scalar quantum electrodynamics on a locally de Sitter background. One of these bilinears is the product of two covariantly differentiated scalars, the other is the product of two undifferentiated scalars. The computations are done using dimensional regularization and the Schwinger-Keldysh formalism. Our results are in perfect agreement with the stochastic predictions at this order.
hep-ph/0607265 [abs, ps, pdf, other] :: Title: The GZK Puzzle and Fundamental Dynamics
Authors: A.A. Arkhipov
Comments: 29 pages, 17 figures

The conjecture that the GZK puzzle might be related with nontrivial structure of the inelastic defect of total cross sections in scattering from nuclei has been suggested.

Replacements

astro-ph/0412348 [abs, ps, pdf, other] :: Title: High resolution SPH simulations of disk formation in CDM halos; resolution tests
Authors: Tobias Kaufmann, Lucio Mayer, Ben Moore, Joachim Stadel, James Wadsley
Comments: 5 pages, 3 figures, published in the Proceedings of Science, Conference "Baryons in Dark Matter Haloes", Novigrad, Croatia, 5-9 October 2004, one figure added
Journal-ref: PoS(BDMH2004)057
Note: replaced with revised version Tue, 25 Jul 2006 10:17:40 GMT (905kb)
astro-ph/0507296 [abs, ps, pdf, other] :: Title: Cooling flows within galactic haloes: the kinematics and properties of infalling multi-phase gas
Authors: Tobias Kaufmann (1), Lucio Mayer (1), James Wadsley (2), Joachim Stadel (1), Ben Moore (1), ((1) University of Zurich, (2) McMaster University)
Comments: 12 pages, 12 figures, MNRAS in press. High resolution simulation and further tests added, extended discussion, main conclusions unchanged. High resolution version of the paper and movies can be found at this http URL
Note: replaced with revised version Tue, 25 Jul 2006 13:51:36 GMT (618kb)
astro-ph/0511313 [abs, ps, pdf, other] :: Title: Structure formation and CMBR anisotropy spectrum in the inflessence model
Authors: A.A. Sen, V.F. Cardone, S. Capozziello, A. Troisi
Comments: 10 pages, 9 figures, accepted for publication on Astronomy & Astrophysics. A bug in a code has been corrected so that some of the figures on the growth factor and growth index have been changed, but the main results are unchanged
Note: replaced with revised version Tue, 25 Jul 2006 09:27:43 GMT (214kb)
astro-ph/0511611 [abs, ps, pdf, other] :: Title: Collimation of astrophysical jets - the role of the accretion disk magnetic field distribution
Authors: Christian Fendt
Comments: accepted by ApJ, high resolution version under www.mpia-hd.mpg.de/homes/fendt/
Note: replaced with revised version Tue, 25 Jul 2006 09:27:13 GMT (221kb)
astro-ph/0512155 [abs, ps, pdf, other] :: Title: Evading the astrophysical limits on light pseudoscalars
Authors: Pankaj Jain, Subhayan Mandal
Comments: 10 pages, 5 figures, minor changes
Note: replaced with revised version Tue, 25 Jul 2006 04:34:41 GMT (21kb)
astro-ph/0601346 [abs, ps, pdf, other] :: Title: Percolation Galaxy Groups and Clusters in the SDSS Redshift Survey: Identification, Catalogs, and the Multiplicity Function
Authors: Andreas A. Berlind, Joshua A. Frieman, David H. Weinberg, Michael R. Blanton, Michael S. Warren, Kevork Abazajian, Ryan Scranton, David W. Hogg, Roman Scoccimarro, Neta A. Bahcall, J. Brinkmann, J. Richard Gott III, S. J. Kleinman, J. Krzesinski, Brian C. Lee, Christopher J. Miller, Atsuko Nitta, Donald P. Schneider, Douglas L. Tucker, Idit Zehavi, for the SDSS Collaboration
Comments: 26 emulateapj pages including 19 figures. Replaced with final ApJ version
Note: replaced with revised version Tue, 25 Jul 2006 19:06:32 GMT (650kb)
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, final version to be published by MNRAS Let. Minor changes with some additional clarification on error analysis done
Note: replaced with revised version Tue, 25 Jul 2006 05:37:43 GMT (127kb)
astro-ph/0604327 [abs, ps, pdf, other] :: Title: Top ten accelerating cosmological models
Authors: Marek Szydlowski, Aleksandra Kurek, Adam Krawiec
Comments: RevTeX4, 11 pages, 7 figures; v2 some clarifications, bibliography additions, new figure (comparisons with respect to LambdaCDM)
Note: replaced with revised version Tue, 25 Jul 2006 18:44:37 GMT (62kb)
astro-ph/0604520 [abs, ps, pdf, other] :: Title: E- and B-mode mixing from incomplete knowledge of the shear correlation
Authors: Martin Kilbinger, Peter Schneider, Tim Eifler (Argelander-Institut fuer Astronomie, Universitaet Bonn)
Comments: Research Note, A&A in press. 6 pages, 6 figures
Note: replaced with revised version Tue, 25 Jul 2006 17:05:25 GMT (51kb)
astro-ph/0605542 [abs, ps, pdf, other] :: Title: The Structure of Rapidly Rotating Late-Type Spiral Galaxies: I. Photometry, HI and Optical Kinematics
Authors: K. Spekkens, R. Giovanelli
Comments: v2: minor changes to match proofs. 23 pages, 15 figures, AJ in press. For version with high resolution figures, see this http URL
Note: replaced with revised version Tue, 25 Jul 2006 14:08:19 GMT (395kb)
astro-ph/0606412 [abs, ps, pdf, other] :: Title: Non-Equilibrium Beta Processes in Neutron Stars: A Relationship between the Net Reaction Rate and the Total Emissivity of Neutrinos
Authors: Sergio Flores-Tulian, Andreas Reisenegger
Comments: Accepted for publication in MNRAS. 8 pages, non tables nor figures, uses aastex.cls
Note: replaced with revised version Tue, 25 Jul 2006 02:49:06 GMT (21kb)
astro-ph/0607547 [abs, ps, pdf, other] :: Title: Arcfinder: An algorithm for the automatic detection of gravitational arcs
Authors: Gregor Seidel, Matthias Bartelmann
Comments: 12 pages, 12 figures
Note: replaced with revised version Tue, 25 Jul 2006 00:01:24 GMT (386kb)
gr-qc/0507102 [abs, ps, pdf, other] :: Title: The Exact Solution of the Riemann Problem in Relativistic MHD
Authors: B. Giacomazzo (1), L. Rezzolla (1 and 2) ((1) SISSA and INFN, (2) Louisiana State University)
Comments: 36 pages, 13 figures. Minor changes to match published version
Journal-ref: J. Fluid Mech. 562(2006), 223-259
Note: replaced with revised version Tue, 25 Jul 2006 17:21:28 GMT (107kb)

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cond-mat/0404602 [abs, pdf] :: Title: Nonextensivity in nonequilibrium plasma systems with Coulombian long-range interactions
Authors: Du Jiulin
Comments: 11 pages, 22 references. To appear in Phys. Lett.A 2004
Subj-class: Statistical Mechanics; Plasma Physics
Journal-ref: Phys.Lett.A 329(2004)262-267

The nonextensivity in a non-isothermal plasma system with the Coulombian long-range interactions is studied in the framework of Tsallis statistics. We present for first time a mathematical expression of the nonextensive parameter q based on the mathematical theory about the generalized Boltzmann equation and the q-H theorem and the Maxwellian q-velocity distribution. We obtain a new physical explanation for q concerning the nature of non-isothermal configurations in plasma systems with Coulombian long-range interactions. We also provide one illustration for Almeida theorem (Physica A 300(2001)424) from the kinetic analyses of plasma systems, which means that Tsallis statistics might be a suitable statistics for the description of a nonequilibrium system with a temperature gradient in it.
cond-mat/0409480 [abs, pdf] :: Title: The nonextensive parameter and Tsallis distribution for self-gravitating systems
Authors: Du Jiulin
Comments: 10 pages, 26 references
Subj-class: Statistical Mechanics
Journal-ref: Europhysics Letters 67(2004)893-899

The properties of the nonextensive parameter q and the Tsallis distribution for self-gravitating systems are studied. A mathematical expression of q is deduced based on the generalized Boltzmann equation, the q-H theorem and the generalized Maxwellian q-velocity distribution in the framework of Tsallis statistics. We obtain a clear understanding of the physics of q different from unity with regard to the temperature gradient and the gravitational potential of the self-gravitating systems. It is suggested that the Tsallis statistics could be statistics suitable for describing the nonequilibrium systems with inhomogeneous temperature and the long-range interactions.
cond-mat/0602111 [abs, pdf] :: Title: Test of Nonextensive Statistical Mechanics by Solar Sound Speeds
Authors: Du Jiulin
Comments: 11 pages,1 table,1 figure,57references. to appear in Europhys.Lett
Subj-class: Statistical Mechanics

To check the validity of the theory of nonextensive statistical mechanics, we have investigated the nonextensive degree of the solar interior and have tried to find the experimental evidence by helioseismological measurements that q is different from unity. We are able to derive a parameter for providing a lower limit to the nonextensive degree inside the sun that can be uniquely determined by the solar sound speeds measured by helioseismology. After calculating the parameter by using the solar sound speeds, we get the lower limit of(1-q)not less than 0.1902 for all solar radii between 0.15R(sun) and 0.95R(sun) and (1-q)approximately equal to 0.4 for the out layers extending from 0.75R(sun)to 0.95R(sun).Thus, the result that the nonextensive parameter q is significantly different from unity has received the support by the experiment measurements for the solar sound speeds in the helioseismology.
cond-mat/0603803 [abs, pdf] :: Title: Nonextensive power law distributions and the q-kinetic theory for the systems with self-gravitating long-range interactions
Authors: Du Jiulin
Comments: 20 pages,40 references
Subj-class: Statistical Mechanics

On the basis of q-kinetic theory based on Tsallis entropy, we propose an approach to derive the nonextensive power law distributions for the many-body systems with self-gravitating long-range interactions. The nonextensive power law distribution is shown to represent the long-range interactions and the non-local correlations within the self-gravitating system with inhomogeneous velocity dispersion when being at a nonequilibrium stationary state. An expression of the corresponding nonextensive parameter q is uniquely determined from the microscopic dynamical equation and the physical interpretation of q different from unity is clearly presented. We establish a relation between the nonextensive parameter q to deviate from unity and the measurable quantities: the velocity dispersion gradient and the mass density. We derive a second-order nonlinear differential equation for the radial density dependence of the system with inhomogeneous velocity dispersion and correctly connect with the density profiles for dark matter. We also study the cases for the self-gravitating collisionless and gaseous dynamical system, respectively.
gr-qc/0607087 [abs, ps, pdf, other] :: Title: Does Pressure Increase or Decrease Active Gravitational Mass Density?
Authors: Abhas Mitra
Comments: 4 pages

We directly show that the for a static fluid sphere, the General Relativistic (GR) Active Gravitational Mass Density (AGMD) \sqrt g_{00} (rho + 3 p) is smaller than the bare or passive mass density rho, where p is the isotropic pressure, because of self-interaction of all sources of energy including p. Then we show that the AGMD is (rho -3p), i.e., exactly opposite of what is generally believed. We further identify the AGMD to be proportional to the Ricci Scalar. By using this fundamental and intersting property, we obtain the GR virial theorem in terms of appropriate ``proper energies''.
gr-qc/0607111 [abs, ps, pdf, other] :: Title: Fine Tuning Free Paradigm of Two Measures Field Theory: K-Essence, Inevitable Dynamical Protection from Initial Singularity and Inflation with Graceful Exit to Lambda =0 State
Authors: E. I. Guendelman, A. B. Kaganovich
Comments: 34 pages, 20 figures

The dilaton-gravity sector of the Two Measures Field Theory (TMT)is explored in detail in the context of cosmology. The model possesses scale invariance which is spontaneously broken due to the intrinsic features of the TMT dynamics. The effective model represents an explicit example of the effective k-essence resulting from first principles without any exotic term in the fundamental action. Depending of the choice of regions in the parameter space, TMT exhibits different possible outputs for cosmological dynamics: a)Dynamical protection from the initial singularity without any tuning of parameters and initial conditions. Power law inflation in the subsequent stage of evolution. Depending on the region in the parameter space (but without fine tuning) the inflation ends with a graceful exit either into the state with zero cosmological constant (CC) or into the state driven by both a small CC and the field phi with a quintessence-like potential. b) Possibility of resolution of the old CC problem. From the point of view of TMT, it becomes clear why the old CC problem cannot be solved (without fine tuning) in conventional field theories. c) TMT enables two ways for achieving small CC without fine tuning of dimensionfull parameters: either by a seesaw type mechanism or due to a correspondence principle between TMT and conventional field theories (i.e theories with only the measure of integration sqrt{-g} in the action. d) The speed c_s of propagation of the cosmological perturbations varies and during the power law inflation c_s>1. e) There is a wide range of the parameters such that in the late time universe: the equation-of-state w=p/\rho <-1; w asymptotically approaches -1 from below; rho approaches a constant, the smallness of which does not require fine tuning of dimensionfull parameters.
hep-th/0607181 [abs, ps, pdf, other] :: Title: Accelerating Universe and Cosmological Perturbation in the Ghost Condensate
Authors: Shinji Mukohyama
Comments: 29 pages

In the simplest Higgs phase of gravity called ghost condensation, an accelerating universe with a phantom era (w<-1) can be realized without ghost or any other instabilities. In this paper we show how to reconstruct the potential in the Higgs sector Lagrangian from a given cosmological history (H(t), \rho(t), p(t)). This in principle allows us to constrain the potential by geometrical information of the universe such as supernova distance-redshift relation. We also derive the evolution equation for cosmological perturbations in the Higgs phase of gravity by empoying a systematic low energy expansion. This formalism is expected to be useful to test the theory by dynamical information of large scale structure in the universe such as cosmic microwave background anisotropy, weak gravitational lensing and galaxy clustering.
hep-th/0607192 [abs, ps, pdf, other] :: Title: The Method of Comparison Equations for Schwarzschild Black Holes
Authors: Roberto Casadio, Mattia Luzzi
Comments: 7 pages, 6 figures

We employ the method of comparison equations to study the propagation of a massless minimally coupled scalar field on the Schwarzschild background. In particular, we show that this method allows us to obtain explicit approximate expressions for the radial modes with energy below the peak of the effective potential which are fairly accurate over the whole region outside the horizon. This case can be of particular interest, for example, for the problem of black hole evaporation.
nucl-th/0607028 [abs, ps, pdf, other] :: Title: Nuclear Superconductivity in Compact Stars: BCS Theory and Beyond
Authors: Armen Sedrakian, John W. Clark
Comments: 41 pages, 16 figures. Chapter contributed to "Pairing in Fermionic Systems: Basic Concepts and Modern Applications", World Scientific
Subj-class: Nuclear Theory; Superconductivity

This chapter provides a review of microscopic theories of pairing in nuclear systems and neutron stars. Special attention is given to the mean-field BCS theory and its extensions to include effects of polarization of the medium and retardation of the interactions. Superfluidity in nuclear systems that exhibit isospin asymmetry is studied. We further address the crossover from the weak-coupling BCS description to the strong-coupling BEC limit in dilute nuclear systems. Finally, within the observational context of rotational anomalies of pulsars, we discuss models of the vortex state in superfluid neutron stars and of the mutual friction between superfluid and normal components, along with the possibility of type-I superconductivity of the proton subsystem.
physics/0607220 [abs, ps, pdf, other] :: Title: Full particle simulation of a perpendicular collisionless shock: A shock-rest-frame model
Authors: Takayuki Umeda (STE Lab., Nagoya Univ.), Ryo Yamazaki (Hiroshima Univ.)
Comments: 4 pages, 2 figures, accepted for publication in Earth, Planets and Space (EPS), the paper with full resolution images is this http URL
Subj-class: Plasma Physics; Space Physics

Full kinetic dynamics of a perpendicular collisionless shock is studied by means of a one-dimensional electromagnetic full particle simulation. The present simulation domain is taken in the shock rest frame in contrast to the previous full particle simulations of shocks. Preliminary results show that the downstream state falls into a unique cyclic reformation state for a given set of upstream parameters through the self-consistent kinetic processes.

Replacements

astro-ph/0510379 [abs, ps, pdf, other] :: Title: Evolution and Merging of Binaries with Compact Objects
Authors: H.A. Bethe, G.E. Brown, C.-H. Lee
Comments: 32 pages, 1 figure, substantial changes from v1
Note: replaced with revised version Wed, 26 Jul 2006 19:21:26 GMT (35kb)
astro-ph/0512044 [abs, ps, pdf, other] :: Title: The Sloan-Lens ACS Survey II: stellar populations and internal structure of early-type lens galaxies
Authors: Tommaso Treu (1), Leon Koopmans (2), Adam Bolton (3), Scott Burles (4), Leonidas Moustakas (5) ((1) UCSB, (2) Kapteyn, (3) CfA, (4) MIT, (5) JPL)
Comments: 2006, ApJ, 604, 622; 13 pages, 7 figures, 2 tables. Replaced Table 2, since the previous version was incorrectly sorted. Updated references. No changes in plots or content. More info available at SLACS website www.slacs.org
Journal-ref: Astrophys.J. 640 (2006) 662-672
Note: replaced with revised version Tue, 25 Jul 2006 22:30:07 GMT (89kb)
astro-ph/0512128 [abs, ps, pdf, other] :: Title: The Duck Redux: An Improved Proper Motion Upper Limit for the Pulsar B1757-24 Near the Supernova Remnant G5.4-1.2
Authors: J. A. Blazek, B. M. Gaensler, S. Chatterjee, E. van der Swaluw, F. Camilo, B. W. Stappers
Comments: 9 pages, including 1 color and 1 B/W figure. Minor changes following referee's report. ApJ, in press
Note: replaced with revised version Wed, 26 Jul 2006 01:31:37 GMT (280kb)
astro-ph/0601629 [abs, ps, pdf, other] :: Title: Low radiative efficiency accretion at work in active galactic nuclei: the nuclear spectral energy distribution of NGC4565
Authors: M. Chiaberge, R. Gilli, F.D. Macchetto, W.B. Sparks
Comments: 7 pages, 6 figures, accepted for publication in the Astrophysical Journal
Note: replaced with revised version Wed, 26 Jul 2006 19:48:57 GMT (612kb)
astro-ph/0602098 [abs, pdf] :: Title: The Chandrasekhar condition of the equilibrium and stability for a star in the nonextensive kinetic theory
Authors: Du Jiulin
Comments: 9 pages,14 references
Subj-class: Astrophysics; Statistical Mechanics
Journal-ref: New Astronomy 12(2006)60-63
Note: replaced with revised version Wed, 26 Jul 2006 01:38:03 GMT (140kb)
astro-ph/0602520 [abs, ps, pdf, other] :: Title: Response of the integrals in the Tremaine-Weinberg method to multiple pattern speeds: a counter-rotating inner bar in NGC 2950?
Authors: Witold Maciejewski (Oxford Astrophysics)
Comments: accepted by MNRAS; Appendix A added, Discussion expanded
Note: replaced with revised version Wed, 26 Jul 2006 14:56:51 GMT (60kb)
astro-ph/0606413 [abs, ps, pdf, other] :: Title: High energy neutrino astronomy using upward-going muons in Super-Kamiokande-I
Authors: The Super-Kamiokande Collaboration: K. Abe, et al
Comments: 8 pages, 6 figures, submitted to ApJ v2 clarifies angular cone sizes used in response to referee comments. Please send comments, clarifications, etc. to Alec Habig (ahabig@umn.edu)
Note: replaced with revised version Wed, 26 Jul 2006 18:26:15 GMT (97kb)
astro-ph/0606477 [abs, ps, pdf, other] :: Title: Rotation of Cosmic Voids and Void-Spin Statistics
Authors: Jounghun Lee, Daeseong Park (Seoul Nat'l Univ.)
Comments: accepted version, ApJ in press, the concept of void spins explained, typos corrected
Note: replaced with revised version Wed, 26 Jul 2006 09:05:58 GMT (202kb)
astro-ph/0607180 [abs, ps, pdf, other] :: Title: Neutrinos, Fission Cycling, and the r-process
Authors: J. Beun, G. C. McLaughlin, R. Surman, W. R. Hix
Comments: Typos corrected. Presented at NIC-IX, International Symposium on Nuclear Astrophysics - Nuclei in the Cosmos - IX, CERN, Geneva, Switzerland, 25-30 June, 2006
Note: replaced with revised version Wed, 26 Jul 2006 12:18:45 GMT (58kb)
astro-ph/0607306 [abs, ps, pdf, other] :: Title: The Stellar Mass Density at z~6 from Spitzer Imaging of i-drop Galaxies
Authors: Laurence Eyles, Andrew Bunker, Richard Ellis, Mark Lacy, Elizabeth Stanway, Daniel Stark, Kuenley Chiu
Comments: Submitted to MNRAS. Figures, tables and references updated
Note: replaced with revised version Wed, 26 Jul 2006 19:58:57 GMT (910kb)
astro-ph/0607423 [abs, ps, pdf, other] :: Title: Broken Isotropy from a Linear Modulation of the Primordial Perturbations
Authors: Christopher Gordon
Comments: 12 pages, 3 figures; Added references
Note: replaced with revised version Wed, 26 Jul 2006 19:27:16 GMT (734kb)
astro-ph/0607483 [abs, ps, pdf, other] :: Title: Three intervening galaxy absorbers towards GRB060418: faint and dusty?
Authors: Sara L. Ellison, Paul Vreeswijk, Cedric Ledoux, Jon P. Willis, Andreas Jaunsen, Ralph A. M. J. Wijers, Alain Smette, Johan P. U. Fynbo, Palle Moller, Jens Hjorth, Andreas Kaufer
Comments: Accepted for publication in MNRAS (Letters), 5 pages. Updated with more accurate host position
Note: replaced with revised version Tue, 25 Jul 2006 21:54:15 GMT (662kb)
astro-ph/0607515 [abs, ps, pdf, other] :: Title: Ultra high energy neutrinos: the key to ultra high energy cosmic rays
Authors: Todor Stanev
Comments: 12 pages, 5 figures, Talk presented at the Vulcano06 workshop. Second version with some typos removed
Note: replaced with revised version Wed, 26 Jul 2006 15:55:45 GMT (27kb)
gr-qc/0311085 [abs, ps, pdf, other] :: Title: Magnetic tension and gravitational collapse
Authors: Christos G. Tsagas (AUT)
Comments: Typos corrected. Published version
Journal-ref: Class.Quant.Grav. 23 (2006) 4323-4331
Note: replaced with revised version Wed, 26 Jul 2006 15:19:52 GMT (12kb)
hep-th/0602097 [abs, ps, pdf, other] :: Title: On compatibility of string effective action with an accelerating universe
Authors: Ishwaree P. Neupane
Comments: 17 pages, 7 figures; v2 significant changes in notations, appendix and refs added; v3 significant revisions are made, new refs
Note: replaced with revised version Wed, 26 Jul 2006 14:46:56 GMT (374kb)
hep-th/0607074 [abs, ps, pdf, other] :: Title: Space, Time, and Tachyon Condensation
Authors: Brett McInnes
Comments: 14 pages, one diagram, improved explanation of infinite age difference, references added
Note: replaced with revised version Wed, 26 Jul 2006 08:31:47 GMT (26kb)

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gr-qc/0510007 [abs, ps, pdf, other] :: Title: Acceleration of the universe in the Einstein frame of a metric-affine f(R) gravity
Authors: Nikodem J. Poplawski
Comments: 12 pages; published version
Journal-ref: Class.Quant.Grav. 23 (2006) 2011-2020

We show that inflation and current cosmic acceleration can be generated by a metric-affine f(R) gravity formulated in the Einstein conformal frame, if the gravitational Lagrangian L(R) contains both positive and negative powers of the curvature scalar R. In this frame, we give the equations for the expansion of the homogeneous and isotropic matter-dominated universe in the case L(R)=R+{R^3}/{\beta^2}-{\alpha^2}/{3R}, where \alpha and \beta are constants. We also show that gravitational effects of matter in such a universe at very late stages of its expansion are weakened by a factor that tends to 3/4, and the energy density of matter \epsilon scales the same way as in the \Lambda-CDM model only when \kappa*\epsilon<<\alpha.
gr-qc/0607080 [abs, ps, pdf, other] :: Title: Probing anisotropies of gravitational-wave backgrounds with a space-based interferometer III: Reconstruction of a high-frequency skymap
Authors: Atsushi Taruya
Comments: 15 pages, 10 figures, A version with high-resolution figures is available at this http URL

We develop a numerical scheme to make a high-frequency skymap of gravitational-wave backgrounds (GWBs) observed via space-based interferometer. Based on the cross-correlation technique, the intensity distribution of anisotropic GWB can be directly reconstructed from the time-ordered data of cross-correlation signals, with full knowledge of detector's antenna pattern functions. We demonstrate how the planned space interferometer, LISA, can make a skymap of GWB for a specific example of anisotropic signals. At the frequency higher than the characteristic frequency $f_*=1/(2\pi L)$, where $L$ is the arm-length of the detector, the reconstructed skymap free from the instrumental noise potentially reaches the angular resolution up to the multipoles $\ell\sim10$. The presence of instrumental noises degrades the angular resolution. The resultant skymap has angular resolution with multipoles $\ell\leq 6\sim7$ for the anisotropic signals with signal-to-noise ratio S/N$>5$.
hep-ph/0607281 [abs, ps, pdf, other] :: Title: Probing Late Neutrino Mass Properties with Supernova Neutrinos
Authors: J. Baker, H. Goldberg, G. Perez, I. Sarcevic
Comments: 23 pages latex, 10 figures included

Models of late-time neutrino mass generation contain new interactions of the cosmic background neutrinos with supernova relic neutrinos (SRNs) through exchange of the on-shell light boson, leading to significant modification of the differential SRN flux observed at earth. We consider Abelian U(1) model for generating neutrino masses at low scales and we show that there is a large parameter space in this model for which the changes induced in the flux by the exchange of the light bosons might allow one to distinguish between neutrinos being Majorana or Dirac particles, the type of neutrino mass hierarchy (normal or inverted or quasi-degenerate), and could also possibly determine the absolute values of the neutrino masses. Measurements of the presence of these effects would be possible at the next-generation water Cerenkov detectors enriched with Gadolinium, or a large 100 kton liquid argon detector.
physics/0607230 [abs, ps, pdf, other] :: Title: A geoneutrino experiment at Homestake
Authors: N. Tolich, Y.-D. Chan, C.A. Currat, M.P. Decowski, B.K. Fujikawa, R. Henning, K.T. Lesko, A.W.P. Poon, K. Tolich, J. Wang
Comments: proceedings for Neutrino Sciences 2005, submitted to Earth, Moon, and Planets
Subj-class: Geophysics

A significant fraction of the 44TW of heat dissipation from the Earth's interior is believed to originate from the decays of terrestrial uranium and thorium. The only estimates of this radiogenic heat, which is the driving force for mantle convection, come from Earth models based on meteorites, and have large systematic errors. The detection of electron antineutrinos produced by these uranium and thorium decays would allow a more direct measure of the total uranium and thorium content, and hence radiogenic heat production in the Earth. We discuss the prospect of building an electron antineutrino detector approximately 700m^3 in size in the Homestake mine at the 4850' level. This would allow us to make a measurement of the total uranium and thorium content with a statistical error less than the systematic error from our current knowledge of neutrino oscillation parameters. It would also allow us to test the hypothesis of a naturally occurring nuclear reactor at the center of the Earth.

Replacements

astro-ph/0511622 [abs, ps, pdf, other] :: Title: Fireball and cannonball models of gamma ray bursts confront observations
Authors: Arnon Dar
Comments: Invited talk at the 2005 Frascati Workshop on Multi Frequency Observations of High Energy Cosmic Sources, May 23-28, 2005, Vulcano, Italy, Chinese Journal of Astronomy and Astrophysics
Note: replaced with revised version Thu, 27 Jul 2006 04:01:14 GMT (240kb)
astro-ph/0511749 [abs, ps, pdf, other] :: Title: Efficiency Crisis of Swift Gamma-Ray Bursts with Shallow X-ray Afterglows: Prior Activity or Time-Dependent Microphysics?
Authors: Kunihito Ioka, Kenji Toma, Ryo Yamazaki, Takashi Nakamura
Comments: 7 pages, 1 figure, accepted for publication in A&A
Note: replaced with revised version Thu, 27 Jul 2006 07:48:13 GMT (131kb)
astro-ph/0603159 [abs, ps, pdf, other] :: Title: On the limit cycle instability in magnetized accretion discs
Authors: A. Merloni (MPA), S. Nayakshin (Univ. of Leicester)
Comments: 7 pages, 4 figures. MNRAS, in press. Revised version matching the accepted one. Slight changes made to figures 1 and 2
Note: replaced with revised version Thu, 27 Jul 2006 12:12:49 GMT (457kb)
astro-ph/0604016 [abs, ps, pdf, other] :: Title: The Interpretation and Implication of the Afterglow of GRB 060218
Authors: Yi-Zhong Fan, Tsvi Piran, Dong Xu
Comments: 13 pages and 1 figure, submitted to JCAP
Note: replaced with revised version Thu, 27 Jul 2006 10:18:56 GMT (34kb)
astro-ph/0604281 [abs, ps, pdf, other] :: Title: Supermassive Black Hole Merger Rates: Uncertainties from Halo Merger Theory
Authors: Adrienne L. Erickcek (1), Marc Kamionkowski (1), Andrew J. Benson (2) ((1) California Institute of Technology, (2) University of Oxford)
Comments: 9 pages, 9 figures. More concise treatment, accepted for publication in MNRAS
Note: replaced with revised version Wed, 26 Jul 2006 22:42:15 GMT (79kb)
astro-ph/0605301 [abs, ps, pdf, other] :: Title: Physical viscosity in smoothed particle hydrodynamics simulations of galaxy clusters
Authors: Debora Sijacki, Volker Springel (Max Planck Institute for Astrophysics, Garching, Germany)
Comments: 24 pages, 13 figures, minor revisions, MNRAS accepted
Note: replaced with revised version Thu, 27 Jul 2006 14:06:18 GMT (780kb)
astro-ph/0607432 [abs, ps, pdf, other] :: Title: The Submillimeter Polarization of Sgr A*
Authors: Daniel P. Marrone (1), James M. Moran (1), Jun-Hui Zhao (1), Ramprasad Rao (2) ((1) Harvard-Smithsonian Center for Astrophysics, (2) Institute of Astronomy and Astrophysics, Academia Sinica)
Comments: v2: Minor change to orbital calculation. Invited contribution to the proceedings of the Galactic Center Workshop 2006
Note: replaced with revised version Thu, 27 Jul 2006 03:29:00 GMT (34kb)
hep-ph/0602002 [abs, ps, pdf, other] :: Title: Phase transitions in the early and the present Universe
Authors: D. Boyanovsky, H. J. de Vega, D. J. Schwarz
Comments: 41 pages, 16 figures, to appear in Ann. Rev. Nucl. Part. Sci 2006. Presentation improved, references added
Note: replaced with revised version Thu, 27 Jul 2006 15:20:13 GMT (360kb)
cond-mat/0601148 [abs, ps, pdf, other] :: Title: Surface Energy in Cold Asymmetrical Fermion Superfluids
Authors: Heron Caldas
Comments: 4 pages, 1 figure, minor corrections, one reference added, title changed
Subj-class: Superconductivity; Strongly Correlated Electrons
Note: replaced with revised version Thu, 27 Jul 2006 15:19:34 GMT (27kb)

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Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL