Cross-listings

gr-qc/0607054 [abs, ps, pdf, other] :: Title: Quantum Corrections to the Schwarzschild and Kerr Metrics: Spin 1
Authors: Barry R. Holstein
Comments: 17 pages, 1 Figure

a previous evaluation of the one-graviton loop corrections to the energy-momentum tensor has been extended to particles with unit spin and speculations are presented concerning general properties of such forms.
hep-ex/0607010 [abs, ps, pdf, other] :: Title: A Search for Neutrinos from the Solar hep Reaction and the Diffuse Supernova Neutrino Background with the Sudbury Neutrino Observatory
Authors: The SNO Collaboration
Comments: 11 pages, 5 figures, submitted to ApJ

A search has been made for neutrinos from the hep reaction in the Sun and from the diffuse supernova neutrino background (DSNB) using data collected during the first operational phase of the Sudbury Neutrino Observatory. For the hep neutrino search, two events are observed in the effective electron energy range of 14.3 MeV <T_eff< 20 MeV where 3.1 background events are expected. After accounting for neutrino oscillations, an upper limit of 2.3x10^4 cm^{-2}s^{-1} at the 90% confidence level is inferred on the total flux of hep neutrinos. For DSNB neutrinos, no events are observed in the effective electron energy range of 21 MeV <T_eff< 35 MeV and, consequently, an upper limit on the nu_e component of the DSNB flux in the neutrino energy range of 22.9 MeV <E_nu< 36.9 MeV of 70 cm^{-2}s^{-1} is inferred at the 90% confidence level. This is an improvement by a factor of 6.5 on the previous best upper limit on the hep neutrino flux and by two orders of magnitude on the previous upper limit on the nu_e component of the DSNB flux.
hep-ph/0607111 [abs, ps, pdf, other] :: Title: Cosmology with Light Axions from Technicolor
Authors: Hooman Davoudiasl
Comments: RevTex, 4 pages

Technicolor dynamics, as a mechanism for electroweak symmetry breaking, may also generate mass for axions of techni-anomalous Peccei-Quinn (PQ) symmetries. Avoiding overclosure of the universe by such axions yields upper bounds on the PQ symmetry breaking scale. We show that, within reasonable ranges of parameters, these axions can be suitable dark matter candidates.
hep-ph/0607136 [abs, ps, pdf, other] :: Title: On Kolmogorov Wave Turbulence in QCD
Authors: A.H.Mueller (Columbia U.), A.I.Shoshi (Bielefeld U.), S.M.H. Wong (Columbia U.)
Comments: 25 pages, 4 figures
Subj-class: High Energy Physics - Phenomenology; Plasma Physics

We investigate Kolmogorov wave turbulence in QCD or, in other words, we calculate the spectrum of gluons as a function of time, f_k(t), in the presence of a source which feeds in energy density in the infrared region at a constant rate. We find an early, an intermediate and a late time form for the gluon spectrum. Wave turbulence in QCD turns out to be somewhat different than the turbulence in the case of \phi^4-type theories studied by Zakharov, L'vov and Falkovich. The hope is that a good understanding of QCD wave turbulence might lead to a better understanding of the instability problem in the early stages of the evolution after a heavy ion collision.
hep-ph/0607145 [abs, ps, pdf, other] :: Title: GRBs Neutrinos as a Tool to Explore Quantum Gravity induced Lorentz Violation
Authors: Uri Jacob, Tsvi Piran

Lorentz Invariance Violation (LIV) arises in various quantum-gravity theories. As the typical energy for quantum gravity is the Planck mass, $M_{pl}$, LIV will, most likely, be manifested at very high energies that are not accessible on Earth in the foreseeable future. One has to turn to astronomical observations. Time of flight measurement from different astronomical sources set current limits on the energy scale of possible LIV to $> 0.01 M_{pl}$ (for n=1 models) and $> 10^{-9} M_{pl}$ (for n=2). According to current models Gamma-Ray Bursts (GRBs) are accompanied by bursts of high energy ($\gsim 100$TeV) neutrinos. At this energy range the background level of currently constructed neutrino detectors is so low that a detection of a single neutrino from the direction of a GRB months or even years after the burst would imply an association of the neutrino with the burst and will establish a measurement of a time of flight delay. Such time of flight measurements provide the best way to observe (or set limits) on LIV. Detection of a single GRB neutrino would open a new window on LIV and would improve current limits by many orders of magnitude.
physics/0607127 [abs, ps, pdf, other] :: Title: On the enhancement of nuclear reaction rates in high-temperature plasma
Authors: Makoto Nakamura, Victor T. Voronchev, Yasuyuki Nakao
Comments: 12 pages, 4 figures, to be published in Phys. Lett. A
Subj-class: Plasma Physics

We argue that the Maxwellian approximation can essentially underestimate the rates of some nuclear reactions in hot plasma under conditions very close to thermal equilibrium. This phenomenon is demonstrated explicitly on the example of reactions in self-sustained DT fusion plasma with admixture of light elements X = Li, Be, C. A kinetic analysis shows that the reactivity enhancement results from non-Maxwellian knock-on perturbations of ion distributions caused by close collisions with energetic fusion products. It is found that although the fraction of the knock-on ions is small, these particles appreciably affect the D+X and T+X reaction rates. The phenomenon discussed is likely to have general nature and can play role in other laboratory and probably astrophysical plasma processes.

Replacements

astro-ph/0504156 [abs, ps, pdf, other] :: Title: X-ray Emission from Hot Gas in Galaxy Mergers
Authors: T. J. Cox (1), Tiziana Di Matteo (2), Lars Hernquist (1), Philip F. Hopkins (1), Brant Robertson (1), Volker Springel (3) ((1) Harvard-CfA, (2) Carnegie-Mellon, (3) MPA)
Comments: 16 pages, 15 figures, matches version accepted to ApJ
Note: replaced with revised version Thu, 13 Jul 2006 22:27:57 GMT (995kb)
astro-ph/0508345 [abs, ps, pdf, other] :: Title: An Analytic Approach to the CMB Polarization Generated by Relic Gravitational Waves
Authors: Wen Zhao, Yang Zhang
Comments: 24 pages, 15 figures
Note: replaced with revised version Fri, 14 Jul 2006 02:45:37 GMT (535kb)
astro-ph/0511555 [abs, ps, pdf, other] :: Title: Neutrino spectrum from the pair-annihilation process in the hot stellar plasma
Authors: M. Misiaszek, A. Odrzywolek, M. Kutschera
Comments: 10 pages, 5 figures, 1 table, version accepted to PRD
Note: replaced with revised version Fri, 14 Jul 2006 18:08:40 GMT (105kb)
astro-ph/0602103 [abs, ps, pdf, other] :: Title: The formation of molecular clouds in spiral galaxies
Authors: C. L. Dobbs, I. A. Bonnell, J. E. Pringle
Comments: 13 pages, 16 figures, accepted for publication in MNRAS
Note: replaced with revised version Fri, 14 Jul 2006 11:22:04 GMT (940kb)
astro-ph/0602476 [abs, ps, pdf, other] :: Title: Mimicking Dark Energy with Lemaitre-Tolman-Bondi Models: Weak Central Singularities and Critical Points
Authors: R. Ali Vanderveld, Eanna E. Flanagan, Ira Wasserman
Comments: 18 pages, 4 figures, revtex4; very minor revisions
Journal-ref: Phys. Rev. D 74, 023506 (2006)
Note: replaced with revised version Fri, 14 Jul 2006 17:48:03 GMT (39kb)
astro-ph/0604379 [abs, ps, pdf, other] :: Title: Flux predictions of high-energy neutrinos from pulsars
Authors: Bennett Link (Montana State University, Bozeman, USA), Fiorella Burgio (INFN Sezione di Catania, Italy)
Comments: MNRAS, 6 pages, 3 figures, 1 table. Minor editorial changes and typos corrected
Note: replaced with revised version Fri, 14 Jul 2006 08:01:33 GMT (196kb)
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 Fri, 14 Jul 2006 02:38:19 GMT (143kb)
astro-ph/0604505 [abs, ps, pdf, other] :: Title: Cosmology and the Bispectrum
Authors: Emiliano Sefusatti, Martin Crocce, Sebastian Pueblas, Roman Scoccimarro
Comments: 28 pages, 14 figures. Added appendix with results updated to WMAP 3-year data. Revised version accepted for publication in Phys. Rev. D
Note: replaced with revised version Fri, 14 Jul 2006 16:44:15 GMT (382kb)
astro-ph/0604579 [abs, ps, pdf, other] :: Title: Non-Gaussian corrections to the probability distribution of the curvature perturbation from inflation
Authors: David Seery, J. Carlos Hidalgo
Comments: 30 pages; uses iopart.cls LaTeX style. v2: Replaced with version accepted by JCAP
Journal-ref: JCAP 07 (2006) 008
Note: replaced with revised version Fri, 14 Jul 2006 08:17:01 GMT (37kb)
astro-ph/0605511 [abs, ps, pdf, other] :: Title: Recognizing the First Radiation Sources Through Their 21-cm Signature
Authors: Leonid Chuzhoy, Marcelo A. Alvarez, Paul R. Shapiro
Comments: 4 pages, accepted by ApJL, minor changes
Note: replaced with revised version Fri, 14 Jul 2006 16:43:14 GMT (21kb)
astro-ph/0607097 [abs, ps, pdf, other] :: Title: Dynamical Stability of Cusps and Cores: Implication to the Centers of Galaxies and Cluster of Galaxies
Authors: Tadashi Nakajima, Masahiro Morikawa
Comments: submitted to Physical Review D. Typo-corrected version
Note: replaced with revised version Fri, 14 Jul 2006 00:23:37 GMT (13kb)
astro-ph/0607285 [abs, ps, pdf, other] :: Title: Two-dimensional MHD simulations of relativistic magnetic reconnection
Authors: Naoyuki Watanabe, Takaaki Yokoyama
Comments: 11 pages, 4 figures, accepted by ApJL
Note: replaced with revised version Fri, 14 Jul 2006 04:38:39 GMT (95kb)
gr-qc/0605011 [abs, ps, pdf, other] :: Title: Gravity, Geometry and the Quantum
Authors: Abhay Ashtekar
Comments: Minor typos corrected, including a factor of $\pi$ in the expression of the critical density. 16 pages, 2 figures. To appear in the Proceedings of the `Einstein Century' Conference, 15-22 July, Paris, edited by J-M Alimi et al (American Institute of Physics)
Note: replaced with revised version Fri, 14 Jul 2006 19:42:46 GMT (449kb)
hep-ph/0512090 [abs, ps, pdf, other] :: Title: Minimal Dark Matter
Authors: Marco Cirelli, Nicolao Fornengo, Alessandro Strumia
Comments: 16 pages, 2 figures. (v2: matches published version. Comments added, details of DM freeze-out compared with hep-ph/0601041, such that our revised version agrees with their revised version.)
Note: replaced with revised version Fri, 14 Jul 2006 13:31:44 GMT (43kb)
hep-th/0605031 [abs, ps, pdf, other] :: Title: Kaluza-Klein black hole with negatively curved extra dimensions in string generated gravity models
Authors: Hideki Maeda, Naresh Dadhich
Comments: 4 pages, 2 figures, final version to appear in Physical Review D as a rapid communication
Journal-ref: Phys. Rev. D74 (2006) 021501(R)
Note: replaced with revised version Fri, 14 Jul 2006 19:57:45 GMT (32kb)

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gr-qc/0605112 [abs, ps, pdf, other] :: Title: Casimir Effect in $E^3$ closed spaces
Authors: Mariana P. Lima, Daniel Müller
Comments: submitted

As it is well known the topology of space is not totally determined by Einstein's equations. It is considered a minimally coupled massless scalar quantum field in a static Euclidean space of dimension 3. The expectation value for the energy density in all compact orientable Euclidean 3-spaces are obtained in this work as a finite summation of Epstein type zeta functions. It is argued that this result should hold for arbitrary $n-$dimensional euclidean manifolds. A numerical plot of the result inside each Dirichlet region is obtained.
gr-qc/0607057 [abs, ps, pdf, other] :: Title: Galactic Halos are Einstein Clusters of WIMPs
Authors: Kayll Lake
Comments: 4 pages revtex4 1 figure

It is shown that an Einstein cluster of WIMPs, WIMPs on stable circular geodesic orbits generating the static spherically symmetric gravitational field of a galactic halo, can exactly reproduce the rotation curve of any galaxy simply by adjusting the local angular momentum distribution and consequent number distribution of the WIMPs. No new physics is involved (assuming the forthcoming discovery of WIMPs). Further, stability of the orbits can require an inner truncation of the halo and an explicit example of this is given. The requisite junction conditions turn out to be trivial to satisfy. There is no exact Newtonian counterpart to the model presented since pure Newtonian gravity fails to account for the contribution made by the angular momentum distribution of the particles in creating the gravitational field. In effect, a galactic halo is supported by the hoop stresses created by the orbiting WIMPs.
gr-qc/0607059 [abs, ps, pdf, other] :: Title: Inflationary scalar spectrum in loop quantum cosmology
Authors: Gianluca Calcagni, Marina Cortes
Comments: 13 pages, 2 figures

In the context of loop quantum cosmology, we consider an inflationary era driven by a canonical scalar field and occurring in the semiclassical regime, where spacetime is a continuum but quantum gravitational effects are important. The spectral amplitude and index of scalar perturbations on an unperturbed de Sitter background are computed at lowest order in the slow-roll parameters. The scalar spectrum can be blue-tilted and far from scale invariance, and tuning of the quantization ambiguities is necessary for agreement with observations. The results are extended to a generalized quantization scheme including those proposed in the literature. Quantization of the matter field at sub-horizon scales can provide a consistency check of such schemes.
hep-ph/0509132 [abs, ps, pdf, other] :: Title: Similarity of the gravitational contributions to anomalous magnetic moment
Authors: Konosuke Sawa
Comments: 8 pages, 2 figures, minor corrections, title changed, accepted for Progress of Theoretical Physics

A precise measurement of a muon $(g-2)$ experiment recently reported a deviation from the Standard Model. This implies the need to an extension of the model and suggests underlying mechanisms. We hypothesize that the influence of higher dimensional gravity causes this $(g-2)$ deviation. This effect would appear as Kaluza-Klein modes and Nambu-Goldstone modes on a 3-brane. These classical effects produce new contributions to the magnetic moment. In this paper, we perform a consistency check by comparing the results derived from the Born and Schr{\"o}dinger approximations. This comparison reveals a similarity between KK-dilaton modes and the brane stretching effect.
hep-ph/0607109 [abs, ps, pdf, other] :: Title: Probing Dark Energy via Neutrino & Supernova Observatories
Authors: Lawrence J. Hall, Hitoshi Murayama, Michele Papucci, Gilad Perez
Comments: 30 pages, 7 figures

A novel method for extracting cosmological evolution parameters is proposed, using a probe other than light: future observations of the diffuse anti-neutrino flux emitted from core-collapse supernovae (SNe), combined with the SN rate extracted from future SN surveys. The relic SN neutrino differential flux can be extracted by using future neutrino detectors such as Gadolinium-enriched, megaton, water detectors or 100-kiloton detectors of liquid Argon or liquid scintillator. The core-collapse SN rate can be reconstructed from direct observation of SN explosions using future precision observatories. Our method, by itself, cannot compete with the accuracy of the optical-based measurements but may serve as an important consistency check as well as a source of complementary information. The proposal does not require construction of a dedicated experiment, but rather relies on future experiments proposed for other purposes.
hep-ph/0607170 [abs, ps, pdf, other] :: Title: Inflaton Decay through Supergravity Effects
Authors: Motoi Endo, Masahiro Kawasaki, Fuminobu Takahashi, T. T. Yanagida
Comments: 18 pages, 4 figures

We point out that supergravity effects enable the inflaton to decay into all matter fields, including the visible and the supersymmetry breaking sectors, once the inflaton acquires a non-vanishing vacuum expectation value. The new decay processes have great impacts on cosmology; the reheating temperature is bounded below; the gravitinos are produced by the inflaton decay in a broad class of the dynamical supersymmetry breaking models. We derive the bounds on the inflaton mass and the vacuum expectation value, which severely constrain high-scale inflations such as the hybrid and chaotic inflation models.
hep-th/0605240 [abs, ps, pdf, other] :: Title: On the Free Energy of Noncommutative Quantum Electrodynamics at High Temperature
Authors: F. T. Brandt, J. Frenkel, C. M. Muramoto
Comments: 28 pages, 37 figures. Revised version, accepted for publication in Nuclear Physics B

We compute higher order contributions to the free energy of noncommutative quantum electrodynamics at a nonzero temperature $T$. Our calculation includes up to three-loop contributions (fourth order in the coupling constant $e$). In the high temperature limit we sum all the {\it ring diagrams} and obtain a result which has a peculiar dependence on the coupling constant. For large values of $e\theta T^2$ ($\theta$ is the magnitude of the noncommutative parameters) this non-perturbative contribution exhibits a non-analytic behavior proportional to $e^3$. We show that above a certain critical temperature, there occurs a thermodynamic instability which may indicate a phase transition.
hep-th/0607061 [abs, ps, pdf, other] :: Title: Predictions of Dynamically Emerging Brane Inflation Models
Authors: Thorsten Battefeld, Natalia Shuhmaher
Comments: 9 pages, 1 figure

We confront the recent proposal of Emerging Brane Inflation with WMAP3+SDSS, finding a scalar spectral index of $n_s=0.9659^{+0.0049}_{-0.0052}$ in excellent agreement with observations. The proposal incorporates a preceding phase of isotropic, non accelerated expansion in all dimensions, providing suitable initial conditions for inflation. Additional observational constraints on the parameters of the model provide an estimate of the string scale.
A graceful exit to inflation and stabilization of extra dimensions is achieved via a string gas. The resulting pre-heating phase shows some novel features due to a redshifting potential, comparable to effects due to the expansion of the universe itself. However, the model at hand suffers from either a potential over-production of relics after inflation or insufficient stabilization at late times.
hep-th/0607092 [abs, ps, pdf, other] :: Title: Quantum Energies of Strings in a 2+1 Dimensional Gauge Theory
Authors: N. Graham, M. Quandt, O. Schroeder, H. Weigel
Comments: 26 pages, 20 eps-files combined to 8 figures

We study classically unstable string type configurations and compute the renormalized vacuum polarization energies that arise from fermion fluctuations in a 2+1 dimensional analog of the standard model. We then search for a minimum of the total energy (classical plus vacuum polarization energies) by varying the profile functions that characterize the string. We find that typical string configurations bind numerous fermions and that populating these levels is beneficial to further decrease the total energy. Ultimately our goal is to explore the stabilization of string type configurations in the standard model through quantum effects.
We compute the vacuum polarization energy within the phase shift formalism which identifies terms in the Born series for scattering data and Feynman diagrams. This approach allows us to implement standard renormalization conditions of perturbation theory and thus yields the unambiguous result for this non--perturbative contribution to the total energy.

Replacements

astro-ph/0502366 [abs, pdf] :: Title: Discovery of an extended halo of metal-poor stars in the Andromeda spiral galaxy
Authors: Puragra Guhathakurta, James C. Ostheimer, Karoline M. Gilbert, R. Michael Rich, Steven R. Majewski, Jasonjot S. Kalirai, David B. Reitzel, Richard J. Patterson
Comments: 48 pages, 7 figs (main manuscript: 16 pages, 3 figs; supplementary information section: 32 pages, 4 figs) - revised through two rounds of referee reports from each of two referees (only minor changes in the second round), before Nature decided to pull the plug on it for reasons that remain a mystery to the authors!
Note: replaced with revised version Sat, 15 Jul 2006 08:21:40 GMT (542kb)
astro-ph/0503435 [abs, ps, pdf, other] :: Title: A Log-Quadratic Relation Between the Nuclear Black-Hole Masses and Velocity Dispersions of Galaxies
Authors: Stuart Wyithe
Comments: 21 pages, 14 figures. Replaced to correct errors in published version
Journal-ref: Mon.Not.Roy.Astron.Soc. 365 (2006) 1082-1098
Note: replaced with revised version Mon, 17 Jul 2006 06:11:37 GMT (150kb)
astro-ph/0511639 [abs, ps, pdf, other] :: Title: Precession of neutrino-cooled accretion disks in gamma-ray burst engines
Authors: Matias M. Reynoso, Gustavo E. Romero, Oscar A. Sampayo
Comments: 7 pages, 8 figures, accepted for publication in A&A
Journal-ref: Astron. Astrophys. 454: 11-16, 2006
Note: replaced with revised version Fri, 14 Jul 2006 22:13:22 GMT (437kb)
astro-ph/0602387 [abs, ps, pdf, other] :: Title: The variable X-ray light curve of GRB 050713A: the case of refreshed shocks
Authors: D. Guetta, F. Fiore, V. D'Elia, R. Perna, L.A. Antonelli, S. Piranomonte, S. Puccetti, L. Stella, L. Angelini, N. Schartel, S.Campana, G. Chincarini, S. Covino, G. Tagliaferri, D. Malesani, C. Guidorzi, A. Monfardini, C.G. Mundell, de Leon Cruz, A.J. Castro-Tirado, S. Guzly, J. Gorosabel, M. Jelinek, A. Gomboc
Comments: few changes, to be published in A&A
Note: replaced with revised version Mon, 17 Jul 2006 11:48:13 GMT (83kb)
astro-ph/0603114 [abs, ps, pdf, other] :: Title: Dark Energy: Mystery of the Millennium
Authors: T.Padmanabhan
Comments: Updated version of the Plenary talk at Albert Einstein Century International Conference at Palais de l'Unesco, Paris, France, 18-23 July, 2005; to appear in the Proceedings; AIP style files included; 16 pages; 2 figs
Note: replaced with revised version Sat, 15 Jul 2006 12:07:53 GMT (57kb)
astro-ph/0604225 [abs, ps, pdf, other] :: Title: Non-existence of self-similar solutions containing a black hole in a universe with a stiff fluid or scalar field or quintessence
Authors: Tomohiro Harada, Hideki Maeda, B. J. Carr
Comments: 17 pages, 6 figures, Accepted for Publication in Phys. Rev. D, Minor Correction
Note: replaced with revised version Sun, 16 Jul 2006 06:29:41 GMT (137kb)
astro-ph/0604618 [abs, ps, pdf, other] :: Title: Swift observations of the 2006 outburst of the recurrent nova RS Ophiuchi: I. Early X-ray emission from the shocked ejecta and red giant wind
Authors: M.F. Bode, T.J. O'Brien, J.P. Osborne, K.L. Page, F. Senziani, G.K. Skinner, S. Starrfield, J-U. Ness, J.J. Drake, G. Schwarz, A.P. Beardmore, M.J. Darnley, S.P.S. Eyres, A. Evans, N. Gehrels, M.R. Goad, P. Jean, J. Krautter, G. Novara
Comments: 20 pages, 4 figures, accepted by ApJ
Note: replaced with revised version Mon, 17 Jul 2006 10:39:00 GMT (44kb)
astro-ph/0605721 [abs, ps, pdf, other] :: Title: Absorption of Nuclear Gamma-rays on the Starlight Radiation in FR I Sources: the Case of Centaurus A
Authors: L. Stawarz, F. Aharonian, S. Wagner, M. Ostrowski
Comments: 24 pages, 8 figures included. Accepted for publication in MNRAS
Note: replaced with revised version Mon, 17 Jul 2006 08:01:37 GMT (186kb)
astro-ph/0606533 [abs, ps, pdf, other] :: Title: Can a galaxy redshift survey measure dark energy clustering?
Authors: Masahiro Takada (Tohoku Univ., Japan)
Comments: 14 pages, 7 figures, to appear in PRD. Added Eqs.(5) and (9) and some references
Note: replaced with revised version Fri, 14 Jul 2006 21:28:57 GMT (87kb)
astro-ph/0606542 [abs, ps, pdf, other] :: Title: All physical transforms from RW coordinates require the same variable physical photon velocity
Authors: Robert C. Fletcher
Comments: 21 pages, 1 figure, 2 files replaced with 23 pages. Ad hoc assumption of invariance of photon velocity under reflectivity removed since it can be derived from homogeneity. Added clarifying comments and steps. Corrected several typos
Note: replaced with revised version Mon, 17 Jul 2006 17:54:14 GMT (57kb)
astro-ph/0607124 [abs, pdf] :: Title: Propeller driven spectral state transition in LMXB 4U 1608-52
Authors: Xie Chen, Shuang Nan Zhang, Guo Qiang Ding
Comments: 13 pages, 3 figures, accepted by Astrophysical Journal
Note: replaced with revised version Mon, 17 Jul 2006 07:15:58 GMT (164kb)
astro-ph/0607145 [abs, ps, pdf, other] :: Title: Neutrino-Cooled Accretion Disks around Spinning Black Hole
Authors: Wen-Xin Chen, Andrei M. Beloborodov (Columbia University)
Comments: 35 pages, 18 figures, accepted to ApJ
Note: replaced with revised version Mon, 17 Jul 2006 06:51:05 GMT (364kb)
astro-ph/0607199 [abs, ps, pdf, other] :: Title: X-ray observations of the mass and entropy distributions in nearby galaxy clusters
Authors: G.W. Pratt (MPE Garching, Germany)
Comments: 11 pages, 4 figures. Invited review to appear in the proceedings of the XLIst Rencontres de Moriond, XXVIth Astrophysics Moriond Meeting: "From dark halos to light", Eds. L.Tresse, S. Maurogordato and J. Tran Thanh Van. Typos corrected, added references
Note: replaced with revised version Mon, 17 Jul 2006 09:04:20 GMT (116kb)
astro-ph/0607288 [abs, ps, pdf, other] :: Title: A New Measure for Weak Lensing Flexion
Authors: Yuki Okura (1), Keiichi Umetsu (2), Toshifumi Futamase (1) ((1) Tohoku University, (2) ASIAA)
Comments: 6 pages, 2 figures, submitted to ApJ; replaced with a new version for Part 1 of ApJ
Note: replaced with revised version Sat, 15 Jul 2006 08:45:33 GMT (161kb)
gr-qc/0604050 [abs, ps, pdf, other] :: Title: Tachyon Matter in Loop Quantum Cosmology
Authors: A. A. Sen
Comments: 5 pages, Revtex style. Title changed. Some general comments and references added. No major changes. Accepted for publication in Phys. Rev.D
Note: replaced with revised version Fri, 14 Jul 2006 21:01:35 GMT (10kb)
gr-qc/0606032 [abs, ps, pdf, other] :: Title: Non-Singular Bouncing Universes in Loop Quantum Cosmology
Authors: Parampreet Singh, Kevin Vandersloot, G. V. Vereshchagin
Comments: Minor changes and one figure added to improve presentation. References added. To appear in Physical Review D
Note: replaced with revised version Mon, 17 Jul 2006 19:50:03 GMT (320kb)
hep-th/0602170 [abs, ps, pdf, other] :: Title: Solitons in the Higgs phase -- the moduli matrix approach --
Authors: Minoru Eto, Youichi Isozumi, Muneto Nitta, Keisuke Ohashi, Norisuke Sakai
Comments: 89 pages, 33 figures, invited review article to Journal of Physics A: Mathematical and General, v3: typos corrected, references added, the published version
Subj-class: High Energy Physics - Theory; Differential Geometry; Pattern Formation and Solitons
Journal-ref: J.Phys. A39 (2006) R315-R392
Note: replaced with revised version Mon, 17 Jul 2006 05:05:07 GMT (469kb)
hep-th/0602194 [abs, ps, pdf, other] :: Title: Gravitational waves and cosmological braneworlds: a characteristic evolution scheme
Authors: Sanjeev S. Seahra
Comments: 21 pages, 18 figures. Points of clarification added to Secs. V and VIIA concerning initial conditions and basis functions, respectively. Other minor typos corrected, references updated. To appear in PRD
Note: replaced with revised version Mon, 17 Jul 2006 11:29:31 GMT (872kb)

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hep-th/0607099 [abs, ps, pdf, other] :: Title: Perturbations of Self-Accelerated Universe
Authors: Cedric Deffayet, Gregory Gabadadze, Alberto Iglesias
Comments: 39 LaTex pages

We discuss small perturbations on the self-accelerated solution of the DGP model, and argue that claims of instability of the solution that are based on linearized calculations are unwarranted because of the following: (1) Small perturbations of an empty self-accelerated background can be quantized consistently without yielding ghosts. (2) Conformal sources, such as radiation, do not give rise to instabilities either. (3) A typical non-conformal source could introduce ghosts in the linearized approximation and become unstable, however, it also invalidates the approximation itself. Such a source creates a halo of variable curvature that locally dominates over the self-accelerated background and extends over a domain in which the linearization breaks down. Perturbations that are valid outside the halo may not continue inside, as it is suggested by some non-perturbative solutions. (4) In the Euclidean continuation of the theory, with arbitrary sources, we derive certain constraints imposed by the second order equations on first order perturbations, thus restricting the linearized solutions that could be continued into the full nonlinear theory. Naive linearized solutions fail to satisfy the above constraints. (5) Finally, we clarify in detail subtleties associated with the boundary conditions and analytic properties of the Green's functions.
nucl-th/0607034 [abs, ps, pdf, other] :: Title: $^1S_0$ superfluid phase--transition in neutron matter with realistic nuclear potentials and modern many--body theories
Authors: Adelchi Fabrocini (1), Stefano Fantoni (2), Alexey Yu. Illarionov (1 and 3), Kevin E. Schmidt (4). ((1) Dip. di Fisica "E.Fermi", Universita di Pisa, and INFN, Sezione di Pisa; (2) International School for Advanced Studies, SISSA; (3) Joint Institute for Nuclear Research, JINR; (4) Department of Physics and Astronomy, Arizona State University.)
Comments: 4 pages, 1 figure, typeset using REVTeX
Journal-ref: Phys. Rev. Lett. 95, 192501 (2005)

The $^1S_0$ pairing in neutron matter has been investigated in presence of realistic two-- and three--nucleon interactions. We have adopted the Argonne $v_{8^\prime}$ NN and the Urbana IX 3N potentials. Quantum Monte Carlo theory, specifically the Auxiliary Field Diffusion Monte Carlo method, and Correlated Basis Function theory are employed in order to get quantitative and reliable estimates of the gap. They both fully take into account the medium modifications due to the interaction induced correlations. The two methods are in good agreement up to the maximum gap density and both point to a slight reduction with respect to the standard BCS value. In fact, the maximum gap is about $2.5 \text{MeV}$ at $k_F \sim 0.8 \text{fm}^{-1}$ in BCS and 2.3--$2.4 \text{MeV}$ at $k_F \sim 0.6 \text{fm}^{-1}$ in correlated matter. At higher densities the Quantum Monte Carlo gap becomes close to BCS. In general, the computed medium polarization effects are much smaller than those previously estimated within \emph{all theories}. Truncations of Argonne $v_{8^\prime}$ to simpler forms give the same gaps in BCS, provided the truncated potentials have been refitted to the same NN data set. Differences among the models appear in the correlated theories, most of the reduction being attributable to the tensor force. The three--nucleon interaction provides an additional increase of the gap of about 0.35 MeV.

Replacements

astro-ph/0504594 [abs, ps, pdf, other] :: Title: Soft X-ray Transmission Spectroscopy of Warm/Hot Intergalactic Medium with XEUS
Authors: Hajime Kawahara, Kohji Yoshikawa, Shin Sasaki, Yasushi Suto, Nobuyuki Kawai, Kazuhisa Mitsuda, Takaya Ohashi, Noriko Yamasaki
Comments: 34 pages, 17 figures. Substantial revision. PASJ, in press (2006, vol.58, August 25 issue)
Note: replaced with revised version Tue, 18 Jul 2006 08:12:11 GMT (750kb)
astro-ph/0508626 [abs, ps, pdf, other] :: Title: Eccentricities of Double Neutron Star Binaries
Authors: Catherine Mia Ihm, Vassiliki Kalogera, Krzysztof Belczynski
Comments: 9 pages, 8 figures, accepted by ApJ. Figures reduced and some content changed, references added
Note: replaced with revised version Tue, 18 Jul 2006 01:52:38 GMT (33kb)
astro-ph/0512413 [abs, ps, pdf, other] :: Title: The Radio and X-ray Luminous SN 2003bg and the Circumstellar Density Variations Around Radio Supernovae
Authors: A. M. Soderberg, R. A. Chevalier, S. R. Kulkarni, D. A. Frail
Comments: Accepted to ApJ, revised version (41 pages, 8 figures, 4 tables)
Note: replaced with revised version Mon, 17 Jul 2006 21:08:42 GMT (375kb)
astro-ph/0603275 [abs, ps, pdf, other] :: Title: X-ray properties in massive galaxy clusters: XMM-Newton observations of the REFLEX-DXL sample
Authors: Y.-Y. Zhang, H. Boehringer, A. Finoguenov, Y. Ikebe, K. Matsushita, P. Schuecker, L. Guzzo, C. A. Collins
Comments: A&A in press, 29 pages, 20 figures, 7 tables, references are updated
Note: replaced with revised version Tue, 18 Jul 2006 15:30:07 GMT (284kb)
astro-ph/0604389 [abs, ps, pdf, other] :: Title: Relativistic ejecta from XRF 060218 and the rate of cosmic explosions
Authors: A. M. Soderberg, S. R. Kulkarni, E. Nakar, E. Berger, D. B. Fox, D. A. Frail, A. Gal-Yam, R. Sari, S. B. Cenko, M. Kasliwal, P. B. Cameron, R. A. Chevalier, T. Piran, P. A. Price, B. P. Schmidt, G. Pooley, D.-S. Moon, B. E. Penprase, A. Rau, E. Ofek, N. Gehrels, J. A. Nousek, D. N. Burrows, S. E. Perrson, P. J. McCarthy
Comments: Accepted to Nature, revised version (13 pages, 3 figures)
Note: replaced with revised version Mon, 17 Jul 2006 20:54:34 GMT (72kb)
astro-ph/0604618 [abs, ps, pdf, other] :: Title: Swift observations of the 2006 outburst of the recurrent nova RS Ophiuchi: I. Early X-ray emission from the shocked ejecta and red giant wind
Authors: M.F. Bode, T.J. O'Brien, J.P. Osborne, K.L. Page, F. Senziani, G.K. Skinner, S. Starrfield, J-U. Ness, J.J. Drake, G. Schwarz, A.P. Beardmore, M.J. Darnley, S.P.S. Eyres, A. Evans, N. Gehrels, M.R. Goad, P. Jean, J. Krautter, G. Novara
Comments: 20 pages, 4 figures (2 updated), accepted by ApJ
Note: replaced with revised version Tue, 18 Jul 2006 15:58:34 GMT (44kb)
astro-ph/0605058 [abs, ps, pdf, other] :: Title: The GRB 060218/SN 2006aj event in the context of other Gamma-Ray Burst Supernovae
Authors: P. Ferrero, D. A. Kann, A. Zeh, S. Klose, E. Pian, E. Palazzi, N. Masetti, D. H. Hartmann, J. Sollerman, J. Deng, A. V. Filippenko, J. Greiner, M. A. Hughes, P. Mazzali, W. Li, E. Rol, R. J. Smith, N. R. Tanvir
Comments: accepted for publication in A&A, updated references
Note: replaced with revised version Tue, 18 Jul 2006 17:29:14 GMT (560kb)
astro-ph/0607278 [abs, ps, pdf, other] :: Title: Discovery of a z=6.1 Radio-Loud Quasar in the NDWFS
Authors: Ian D. McGreer, Robert H. Becker, David J. Helfand, Richard L. White
Comments: 18 pages, 6 figures, accepted for ApJ
Note: replaced with revised version Tue, 18 Jul 2006 18:58:36 GMT (51kb)
gr-qc/0607057 [abs, ps, pdf, other] :: Title: Galactic Halos are Einstein Clusters of WIMPs
Authors: Kayll Lake
Comments: 4 pages revtex4 1 figure. Some clarifications and changes in references
Note: replaced with revised version Tue, 18 Jul 2006 19:55:34 GMT (68kb)
hep-ph/0606178 [abs, ps, pdf, other] :: Title: Higgs instability in gapless superfluidity/superconductivity
Authors: Ioannis Giannakis, Defu Hou, Mei Huang, Hai-cang Ren
Comments: 4 pages, 2 figure, one figure added
Subj-class: High Energy Physics - Phenomenology; Superconductivity
Note: replaced with revised version Tue, 18 Jul 2006 08:45:09 GMT (15kb)

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gr-qc/0607070 [abs, ps, pdf, other] :: Title: On a new symmetry of the solutions of the wave equation in the background of a Kerr black hole
Authors: Horst R. Beyer, Irina Craciun
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics

This short paper derives the constant of motion of a scalar field in the gravitational field of a Kerr black hole which is associated to a Killing tensor of that space-time. In addition, there is found a related new symmetry operator S for the solutions of the wave equation in that background. That operator is a partial differential operator with a leading order time derivative of the first order that commutes with a normal form of the wave operator. That form is obtained by multiplication of the wave operator from the left with the reciprocal of the coefficient function of its second order time derivative. It is shown that S induces an operator that commutes with the generator of time evolution in a formulation of the initial value problem for the wave equation in the setting of strongly continuous semigroups.
hep-ph/0607188 [abs, ps, pdf, other] :: Title: Vacuum Birefringence as a Probe of Planck Scale Noncommutativity
Authors: Steven A. Abel (Durham U.), Joerg Jaeckel (DESY), Valentin V. Khoze (Durham U.), Andreas Ringwald (DESY)
Comments: 19 pages, 4 figures, 1 table

Because of ultraviolet/infrared (UV/IR) mixing, the low energy physics of noncommutative gauge theories in the Moyal-Weyl approach seems to depend crucially on the details of the ultraviolet completion. However, motivated by recent string theory analyses, we argue that their phenomenology with a very general class of UV completions can be accurately modelled by a cutoff close to the Planck scale. In the infrared the theory tends continuously to the commutative gauge theory. If the photon contains contributions from a trace-U(1), we would observe vacuum birefringence, i.e. a polarisation dependent propagation speed, as a residual effect of the noncommutativity. Constraints on this effect require the noncommutativity scale to be close to the Planck scale.
nucl-th/0607039 [abs, ps, pdf, other] :: Title: Neutron Rich Nuclei in Heaven and Earth: Proceedings of the International Conference on Current Problems in Nuclear Physics and Atomic Energy
Authors: J. Piekarewicz
Comments: 13 pages, 5 figures, proceedings of the "International Conference on Current Problems in Nuclear Physics and Atomic Energy" (May 29 - June 3, 2006) Kyiv, UKRAINE

The nucleus of 208Pb -- a system that is 18 order of magnitudes smaller and 55 orders of magnitude lighter than a neutron star -- may be used as a miniature surrogate to establish important correlations between its neutron skin and several neutron-star properties. Indeed, a nearly model-independent correlation develops between the neutron skin of 208Pb and the liquid-to-solid transition density in a neutron star. Further, we illustrate how a measurement of the neutron skin in 208Pb may be used to place important constraints on the cooling mechanism operating in neutron stars and may help elucidate the existence of quarks stars.
nucl-th/0607040 [abs, ps, pdf, other] :: Title: The High-Density Symmetry Energy and Direct Urca
Authors: Andrew W. Steiner
Comments: 6 pages, 3 figures, submitted to PRC

The symmetry energy of nucleonic matter is usually assumed to be quadratic in the isospin density. While this may be justified at sub-saturation densities, there is no need to enforce this restriction at super-saturation densities. The presence of a quartic term can strongly modify the critical density for the direct Urca process which leads to faster cooling of neutron stars. Neutron star cooling predictions which lie below the observational data can, for some equations of state, be repaired with a quartic term which effectively turns off the direct Urca process.
physics/0607168 [abs, ps, pdf, other] :: Title: State-to-state rotational transitions in H$_2$+H$_2$ collisions at low temperatures
Authors: Teck-Ghee Lee, N. Balakrishnan, R.C. Forrey, P.C. Stancil, D.R. Schultz, Gary J. Ferland
Comments: Accepted by J. Chem. Phys
Subj-class: Atomic Physics; Chemical Physics

We present quantum mechanical close-coupling calculations of collisions between two hydrogen molecules over a wide range of energies, extending from the ultracold limit to the super-thermal region. The two most recently published potential energy surfaces for the H$_2$-H$_2$ complex, the so-called DJ (Diep and Johnson, 2000) and BMKP (Boothroyd et al., 2002) surfaces, are quantitatively evaluated and compared through the investigation of rotational transitions in H$_2$+H$_2$ collisions within rigid rotor approximation. The BMKP surface is expected to be an improvement, approaching chemical accuracy, over all conformations of the potential energy surface compared to previous calculations of H$_2$-H$_2$ interaction. We found significant differences in rotational excitation/de-excitation cross sections computed on the two surfaces in collisions between two para-H$_2$ molecules. The discrepancy persists over a large range of energies from the ultracold regime to thermal energies and occurs for several low-lying initial rotational levels. Good agreement is found with experiment (Mat\'e et al., 2005) for the lowest rotational excitation process, but only with the use of the DJ potential. Rate coefficients computed with the BMKP potential are an order of magnitude smaller.

Replacements

astro-ph/0512213 [abs, ps, pdf, other] :: Title: Combining rotation curves and gravitational lensing: How to measure the equation of state of dark matter in the galactic halo
Authors: Tristan Faber, Matt Visser (Victoria University of Wellington, New Zealand)
Comments: V1: 6 pages, no figures, uses mn2e.cls. V2: 8 pages; 1 figure; uses mn2e.cls. Added sections 6 and 7, some minor changes and references. This version to appear in Monthly Notices of the Royal Astronomical Society
Note: replaced with revised version Tue, 18 Jul 2006 22:40:44 GMT (83kb)
astro-ph/0601704 [abs, ps, pdf, other] :: Title: TeV Gamma-Rays from Old Supernova Remnants
Authors: Ryo Yamazaki (Hiroshima Univ.), Kazunori Kohri (Harvard), Aya Bamba (RIKEN), Tatsuo Yoshida (Ibaraki Univ.), Toru Tsuribe, Fumio Takahara (Osaka Univ.)
Comments: 10 pages, 6 figures, 2 tables, MNRAS in press
Note: replaced with revised version Wed, 19 Jul 2006 03:31:16 GMT (65kb)
astro-ph/0603677 [abs, ps, pdf, other] :: Title: An Efficient Method for the Evaluation of Secular Effects in the Perturbed Keplerian Motion
Authors: László Á. Gergely, Zoltán Keresztes, Balázs Mikóczi
Comments: expanded version, figure and references added, to appear in Astrophysical Journal Supplement Series
Note: replaced with revised version Wed, 19 Jul 2006 13:57:59 GMT (35kb)
astro-ph/0605001 [abs, ps, pdf, other] :: Title: A Two-Zone Model for Type I X-ray Bursts on Accreting Neutron Stars
Authors: Randall L. Cooper, Ramesh Narayan (Harvard/CfA)
Comments: 13 pages, 8 figures, accepted by ApJ
Note: replaced with revised version Tue, 18 Jul 2006 21:02:32 GMT (65kb)
astro-ph/0605110 [abs, ps, pdf, other] :: Title: Analytical protostellar disk models 1: the effect of internal dissipation and surface irradiation on the structure of disks and the location of the snow line around Sun-like stars
Authors: Pascale Garaud, Douglas N. C. Lin
Comments: 19 pages, 8 figures. Submitted to ApJ
Note: replaced with revised version Wed, 19 Jul 2006 07:31:42 GMT (113kb)
astro-ph/0607061 [abs, ps, pdf, other] :: Title: Simulations of Baryon Oscillations
Authors: Eric Huff, A.E. Schulz, Martin White, David J. Schlegel, Michael S. Warren
Comments: 33 pages, to appear in Astroparticle Physics. Discussion of Blake & Glazebrook procedure changed, minor edits to match version accepted by the journal
Note: replaced with revised version Wed, 19 Jul 2006 19:02:35 GMT (149kb)
astro-ph/0607150 [abs, ps, pdf, other] :: Title: The halo mass function from the dark ages through the present day
Authors: Darren Reed (ICC-Durham), Richard Bower (ICC-Durham), Carlos Frenk (ICC-Durham), Adrian Jenkins (ICC-Durham), Tom Theuns (ICC-Durham; Univ. of Antwerp)
Comments: Submitted to MNRAS. minor changes to text. Code to reproduce this mass function can be downloaded at this http URL
Note: replaced with revised version Wed, 19 Jul 2006 17:55:29 GMT (259kb)
hep-ph/0604188 [abs, ps, pdf, other] :: Title: Long-Lived Staus at Neutrino Telescopes
Authors: Markus Ahlers, Joern Kersten, Andreas Ringwald
Comments: 12 pages, 6 figures, uses iopart.cls; v2: minor clarifications and references added
Journal-ref: JCAP 0607 (2006) 005
Note: replaced with revised version Wed, 19 Jul 2006 14:10:23 GMT (66kb)
cond-mat/0605139 [abs, ps, pdf, other] :: Title: Transport on Adaptive Random Lattices
Authors: Jelle Ritzerveld, Vincent Icke
Comments: 15 pages, 6 figures, to appear in PRE; revised version to match accepted version
Subj-class: Statistical Mechanics; Mesoscopic Systems and Quantum Hall Effect; Computational Physics
Note: replaced with revised version Wed, 19 Jul 2006 12:58:00 GMT (956kb)

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hep-th/0607073 [abs, ps, pdf, other] :: Title: Inflation Free, Stringy Generation of Scale-Invariant Cosmological Fluctuations in D = 3 + 1 Dimensions
Authors: Ali Nayeri
Comments: 13 pages, 3 figures

We propose an alternative scenario to cosmic inflation for producing the initial seeds of cosmic structures. The cosmological fluctuations are generated by thermal fluctuation of the energy density of the ideal string gas in three compact spatial dimensions. Statistical mechanics of the strings reveals that scalar power spectrum of the cosmological fluctuations on cosmic scales is scale-invariant for closed strings and inclines towards red for open strings in three compact spatial dimensions. This generation of thermal fluctuations happens during the Hagedorn era of string gas cosmology and without invoking an inflationary epoch the perturbations enter the radiation-dominated era. The amplitude of the fluctuations is proportional to the ratio of the two length scales in the theory, i.e., the Planck length over the string length. Since modes with the shorter wavelengths exit the Hubble radius at the end of the Hagedorn phase at later times compare to the modes with long wavelengths, the scalar fluctuations gain mild tilt towards red.
hep-th/0607086 [abs, ps, pdf, other] :: Title: Cosmological Constant and Axions in String Theory
Authors: Peter Svrcek
Comments: 22 pages

String theory axions appear to be promising candidates for explaining cosmological constant via quintessence. In this paper, we study conditions on the string compactifications under which axion quintessence can happen. For sufficiently large number of axions, cosmological constant can be accounted for as the potential energy of axions that have not yet relaxed to their minima. In compactifications that incorporate unified models of particle physics, the height of the axion potential can naturally fall close to the observed value of cosmological constant.

Replacements

astro-ph/0510724 [abs, ps, pdf, other] :: Title: Testing Models of the Individual and Cosmological Evolutions of Powerful Radio Galaxies
Authors: Paramita Barai, Paul J. Wiita (Georgia State University)
Comments: 26 pages, 5 figures; substantially improved version, with additional statistical tests; to appear in MNRAS
Note: replaced with revised version Wed, 19 Jul 2006 20:12:22 GMT (156kb)
astro-ph/0601553 [abs, ps, pdf, other] :: Title: The Ep,i - Eiso correlation in GRBs: updated observational status, re-analysis and main implications
Authors: Lorenzo Amati
Comments: 15 pages, 5 figures, accepted for publication in MNRAS, main journal
Note: replaced with revised version Thu, 20 Jul 2006 15:13:13 GMT (46kb)
astro-ph/0603178 [abs, ps, pdf, other] :: Title: The signature of the magnetorotational instability in the Reynolds and Maxwell stress tensors in accretion discs
Authors: Martin E. Pessah, Chi-kwan Chan, Dimitrios Psaltis (University of Arizona)
Comments: 9 pages, 4 figures. Minor revisions. Accepted for publication in MNRAS
Note: replaced with revised version Thu, 20 Jul 2006 14:46:31 GMT (38kb)
astro-ph/0603833 [abs, ps, pdf, other] :: Title: The Impact of Cosmic Dust on Supernova Cosmology
Authors: Pier Stefano Corasaniti (ISCAP, New York & Columbia U., Astron. Astrophys.)
Comments: 9 pages, 8 figures. Added analysis including size distribution of dust particles, extended discussion on dust models, typos corrected. MNRAS accepted version
Note: replaced with revised version Wed, 19 Jul 2006 20:01:19 GMT (50kb)
astro-ph/0605403 [abs, ps, pdf, other] :: Title: Optimized supernova constraints on dark energy evolution
Authors: Christian Stephan-Otto
Comments: 6 pages, 4 figures; typos removed and reference added to match published version
Journal-ref: Phys.Rev. D74 (2006) 023507
Note: replaced with revised version Thu, 20 Jul 2006 14:53:34 GMT (878kb)
astro-ph/0606630 [abs, ps, pdf, other] :: Title: Discovery of very high energy $\gamma$-rays from Markarian~180 triggered by an optical outburst
Authors: J. Albert, et al. (MAGIC collaboration)
Comments: submitted to ApJ Letters, revised version
Note: replaced with revised version Thu, 20 Jul 2006 15:16:55 GMT (60kb)
astro-ph/0607371 [abs, ps, pdf, other] :: Title: Accelerating Universe in Randall-Sundrum Models of Two 3-Branes
Authors: Anzhong Wang, Rong-Gen Cai, N.O. Santos
Comments: 11 pages, 1 figure, some typos corrected, and new references added
Note: replaced with revised version Thu, 20 Jul 2006 06:01:38 GMT (19kb)
gr-qc/0604101 [abs, ps, pdf, other] :: Title: Stability of naked singularities and algebraically special modes
Authors: Vitor Cardoso, Marco Cavaglia
Comments: 6 pages. ReVTeX4. v2: Minor improvements and extended discussion on boundary conditions. Version to appear in Phys. Rev. D
Note: replaced with revised version Thu, 20 Jul 2006 19:41:05 GMT (8kb)
gr-qc/0607046 [abs, ps, pdf, other] :: Title: Linear stability of the Schwarzschild black hole under electromagnetic and gravitational perturbations
Authors: Felix Finster, Joel Smoller
Comments: 30 pages, 2 figures, minor corrections
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics; Functional Analysis
Note: replaced with revised version Thu, 20 Jul 2006 09:48:12 GMT (32kb)

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