Cross-listings

gr-qc/0702038 [abs, ps, pdf, other] :: Title: A new spectral apparent horizon finder for 3D numerical relativity
Authors: Lap-Ming Lin, Jerome Novak
Comments: 12 pages

We present a new spectral-method based algorithm for finding apparent horizons in three-dimensional spacelike hypersurfaces without symmetries. While there are already a wide variety of algorithms for finding apparent horizons, our new algorithm does not suffer from the same weakness as previous spectral apparent horizon finders: namely the monopolar coefficient ($\ell=0$ in terms of the spherical harmonics decomposition) needed to be determined by a root-finding procedure. Hence, this leads to a much faster and more robust spectral apparent horizon finder. The finder is tested with the Kerr-Schild and Brill-Lindquist data. Our finder is accurate and is as efficient as the currently fastest methods developed recently by Schnetter [Class. Quantum Grav. {\bf 20}, 4719 (2003)] and Thornburg [Class. Quantum Grav. {\bf 21}, 743 (2004)]. At typical resolutions it takes only 0.5 second to find the apparent horizon of a Kerr-Schild black hole with $a=0.9M$ to the accuracy $\sim 10^{-5}$ for the fractional error in the horizon's location on a 2 GHz processor.
gr-qc/0702040 [abs, ps, pdf, other] :: Title: Relativistic r-modes and shear viscosity
Authors: L. Gualtieri, J.A. Pons, J.A. Miralles, V. Ferrari
Comments: 8 pages, 7 figures, to appear in the Proceedings of the Albert Einstein Century International Conference, Paris, France, July 2005
Journal-ref: AIP Conf. Proc., 861, 2006, 638

We derive the relativistic equations for stellar perturbations, including in a consistent way shear viscosity in the stress-energy tensor, and we numerically integrate our equations in the case of large viscosity. We consider the slow rotation approximation, and we neglect the coupling between polar and axial perturbations. In our approach, the frequency and damping time of the emitted gravitational radiation are directly obtained. We find that, approaching the inviscid limit from the finite viscosity case, the continuous spectrum is regularized. Constant density stars, polytropic stars, and stars with realistic equations of state are considered. In the case of constant density stars and polytropic stars, our results for the viscous damping times agree, within a factor two, with the usual estimates obtained by using the eigenfunctions of the inviscid limit. For realistic neutron stars, our numerical results give viscous damping times with the same dependence on mass and radius as previously estimated, but systematically larger of about 60%.
hep-ph/0702084 [abs, ps, pdf, other] :: Title: Spectral index and its running with deviation from the "slow-roll"
Authors: Tomohiro Matsuda
Comments: 9pages, no figure

A deviation from the slow roll may shift the spectral index and its running. Such a deviation is very generic in inflationary models since the slow-roll equation is not the exact solution of the field equation. We calculate the spectral index and its running with non-vanishing deviation parameter, showing that the deviation parameter is a
``hidden'' parameter of the standard calculation. A running spectral index scenario in which the spectral index runs from blue (n>1) on large length scales to red (n<1) on short length scales is examined.
hep-ph/0702086 [abs, ps, pdf, other] :: Title: Entropy & viscosity bound of strange stars
Authors: Sibasish Laha, Taparati Gangopadhyay, Manjari Bagchi, Mira Dey, Jishnu Dey, Monika Sinha, Subharthi Ray
Comments: 7 pages, 2 figures

At finite temperature (T) there is a link with general relativity and hydrodynamics that leads to a lower bound for the ratio of shear viscosity and entropy density (\eta/s). We find that the bound is saturated in the simple model for quark matter that we use for strange stars at T = 80 MeV, at the surface of a strange star. At this T we have the possibility of cosmic separation of phases. We find that, although strongly correlated, the quark matter at the surface of strange stars constitute the most perfect interacting fluid permitted by nature. At the centre of the star, however, the density is higher and conditions are more like the results found for perturbative QCD.
hep-th/0701184 [abs, ps, pdf, other] :: Title: Bouncing and Accelerating Solutions in Nonlocal Stringy Models
Authors: I.Ya. Aref'eva, L.V. Joukovskaya, S.Yu. Vernov
Comments: Latex, 33 pages, 7 figures, typos corrected, ref. added

A general class of cosmological models driven by a non-local scalar field inspired by string field theories is studied. In particular cases the scalar field is a string dilaton or a string tachyon. A distinguished feature of these models is a crossing of the phantom divide. We reveal the nature of this phenomena showing that it is caused by an equivalence of the initial non-local model to a model with an infinite number of local fields some of which are ghosts. Deformations of the model that admit exact solutions are constructed. These deformations contain locking potentials that stabilize solutions. Bouncing and accelerating solutions are presented.
hep-th/0701255 [abs, ps, pdf, other] :: Title: On The Black Hole Interior Spacetime
Authors: Hristu Culetu
Comments: 7 pages, no figures

A new version of the geometry inside a black hole is proposed, on the grounds of an idea given by Doran et al. The spacetime is still time dependent and is a solution of Einstein's equations with a stress tensor corresponding to an anisotropic fluid. The energy density of the fluid is proportional to $1/t^{2}$ as in many dark energy models and the Brown-York quasilocal energy of the black hole interior equals its mass $m$.

Replacements

astro-ph/0512597 [abs, ps, pdf, other] :: Title: Bayesian methods of astronomical source extraction
Authors: Richard S. Savage, Seb Oliver
Comments: Accepted for publication by ApJ (this version compiled used emulateapj.cls)
Note: replaced with revised version Fri, 9 Feb 2007 13:28:46 GMT (177kb)
astro-ph/0603175 [abs, ps, pdf, other] :: Title: Tidally Triggered Star Formation in Close Pairs of Galaxies: Major and Minor Interactions
Authors: Deborah Freedman Woods (Harvard Univ., Dept. of Astronomy), Margaret J. Geller (SAO), Elizabeth J. Barton (UC Irvine, Dept.of Physics and Astronomy)
Comments: Minor revisions following journal proofs
Journal-ref: The Astronomical Journal, 132: 197-209, 2006 July
Note: replaced with revised version Fri, 9 Feb 2007 18:00:37 GMT (92kb)
astro-ph/0605250 [abs, ps, pdf, other] :: Title: Improving the Lagrangian perturbative solution for cosmic fluid: Applying Shanks transformation
Authors: Takayuki Tatekawa
Comments: 17 pages, 7 figures; accepted for publication in Phys.Rev.D; v2: Evolution of power spectrum in LCDM model is added
Note: replaced with revised version Fri, 9 Feb 2007 02:50:41 GMT (65kb)
astro-ph/0607054 [abs, ps, pdf, other] :: Title: Deep GEMINI GMOS-IFU spectroscopy of BAL QSOs: I. Decoupling the BAL, QSO, starburst, NLR, supergiant bubbles and galactic wind in Mrk 231
Authors: S. Lipari, S. F. Sanchez, M. Bergmann, R. Terlevich, B. Garcia-Lorenzo, B. Punsly, E. Mediavilla, Y. Taniguchi, M. Ajiki, W. Zheng, J. Acosta, K. Jahnke
Comments: 51 pages, 20 figures, Submitted MNRAS
Note: replaced with revised version Fri, 9 Feb 2007 18:33:59 GMT (62kb)
astro-ph/0611017 [abs, ps, pdf, other] :: Title: The evolution of clusters in the CLEF cosmological simulation: X-ray structural and scaling properties
Authors: Scott T. Kay, Antonio C. da Silva, Nabila Aghanim, Alain Blanchard, Andrew R. Liddle, Jean-Loup Puget, Rachida Sadat, Peter A. Thomas
Comments: 20 pages, 21 figures, MNRAS, accepted with minor modifications to original manuscript
Note: replaced with revised version Fri, 9 Feb 2007 09:34:23 GMT (443kb)
astro-ph/0611132 [abs, ps, pdf, other] :: Title: Insight into the baryon-gravity relation in galaxies
Authors: Benoit Famaey, Gianfranco Gentile, Jean-Philippe Bruneton, HongSheng Zhao
Comments: 15 pages, 5 figures; improved clarity; accepted for publication in Phys. Rev. D
Note: replaced with revised version Fri, 9 Feb 2007 13:21:15 GMT (320kb)
astro-ph/0701571 [abs, ps, pdf, other] :: Title: Cross-correlation studies as a probe of reionization physics
Authors: Anze Slosar, Asantha Cooray, Joseph Silk
Comments: Revised version of a paper submitted to MNRAS in Dec 06; v2: updated references, matches version accepted by MNRAS
Note: replaced with revised version Fri, 9 Feb 2007 14:48:16 GMT (80kb)
astro-ph/0702207 [abs, ps, pdf, other] :: Title: It's Never Too Late For Matter
Authors: Lawrence M. Krauss (Case Western Reserve University and Vanderbilt University), Robert J. Scherrer (Vanderbilt University)
Comments: several typos corrected, and references added, as well as a closed form general result for annihilating dark matter to not be overwhelmed by radiation in a universe with general equation of state. submitted to PRL
Note: replaced with revised version Fri, 9 Feb 2007 00:34:33 GMT (8kb)
astro-ph/0702216 [abs, ps, pdf, other] :: Title: A New Deep HST/ACS CMD of I Zw 18: Evidence for Red Giant Branch Stars
Authors: A. Aloisi (STScI/ESA), F. Annibali (STScI), J. Mack (STScI), M. Tosi (INAF - OA Bologna), R. van der Marel (STScI), G. Clementini (INAF - OA Bologna), R. Contreras (INAF - OA Bologna), G. Fiorentino (INAF - OA Bologna), M. Marconi (INAF - OA Napoli), I. Musella (INAF - OA Napoli), A. Saha (NOAO)
Comments: 4 pages, 2 figures. Typos corrected. Proceedings of the IAU Symp. 241 "Stellar Populations as Building Blocks of Galaxies", held in La Palma in December 2006, eds. R. F. Peletier & A. Vazdekis
Note: replaced with revised version Fri, 9 Feb 2007 15:30:03 GMT (43kb)
gr-qc/0610131 [abs, ps, pdf, other] :: Title: On the accretion-induced QNM excitation of a Schwarzschild black hole
Authors: Alessandro Nagar, Olindo Zanotti, Jose A. Font, Luciano Rezzolla
Comments: 15 pages, 12 figures, revised version. To appear in Phys. Rev. D
Note: replaced with revised version Fri, 9 Feb 2007 10:42:19 GMT (167kb)
gr-qc/0612045 [abs, ps, pdf, other] :: Title: World-making with extended gravity black holes for cosmic natural selection in the multiverse scenario
Authors: A. Barrau
Comments: 5 pages, 1 figure. Proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity, edited by H. Kleinert, R.T. Jantzen and R. Ruffini, World Scientific, Singapore, 2007
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics
Note: replaced with revised version Fri, 9 Feb 2007 15:53:33 GMT (10kb)
hep-ph/0611036 [abs, ps, pdf, other] :: Title: New physics from ultrahigh energy cosmic rays
Authors: J.I. Illana, M. Masip, D. Meloni
Comments: 9 pages, version to appear in PRD
Note: replaced with revised version Fri, 9 Feb 2007 08:55:04 GMT (163kb)
nucl-ex/0505011 [abs, ps, pdf, other] :: Title: Density Dependence of the Symmetry energy and the Equation of State of Isospin Asymmetric Nuclear Matter
Authors: D.V. Shetty, S.J. Yennello, G.A. Souliotis
Comments: 4 pages, 3 figures, minor revison to the text, added few more references
Note: replaced with revised version Fri, 9 Feb 2007 20:12:10 GMT (56kb)
cond-mat/0611354 [abs, ps, pdf, other] :: Title: Gauge effects on phase transitions in superconductors
Authors: D. V. Shopova, T. E. Tsvetkov, D. I. Uzunov
Comments: 37 pages, 4 figs; J. Phys. Studies (2006; in press)
Subj-class: Superconductivity; Statistical Mechanics; Materials Science; Strongly Correlated Electrons
Note: replaced with revised version Fri, 9 Feb 2007 07:42:29 GMT (54kb)
cond-mat/0701266 [abs, ps, pdf, other] :: Title: Fluctuation and gauge effects on the critical behavior of superconductors
Authors: Diana V. Shopova, Dimo I. Uzunov
Comments: 41 pages, 4 figs., Chapter in the book: ``Superconductivity Research Advances'' (Nova Science Publ., N. Y., 2007 - in preparation)
Subj-class: Superconductivity; Statistical Mechanics; Strongly Correlated Electrons
Note: replaced with revised version Fri, 9 Feb 2007 06:58:52 GMT (58kb)

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Cross-listings

hep-th/0702059 [abs, ps, pdf, other] :: Title: On Inflation in String Theory
Authors: Renata Kallosh
Comments: 38 pages, 8 figures. Based on an invited talk at "Inflation + 25", 22nd IAP Colloquim, Paris (June 2006). To be published in the Proceedings (Springer Lecture Notes, 2007)

In this talk we describe recent progress in construction of inflationary models in the context of string theory with flux compactification and moduli stabilization. We also discuss a possibility to test string theory by cosmological observations.
hep-th/0702074 [abs, ps, pdf, other] :: Title: Nonlocal Electrodynamics of Accelerated Systems
Authors: Bahram Mashhoon
Comments: 10 pages

Acceleration-induced nonlocality is discussed and a simple field theory of nonlocal electrodynamics is developed. The theory involves a pair of real parameters that are to be determined from observation. The implications of this theory for the phenomenon of helicity-rotation coupling are briefly examined.
nucl-ex/0702018 [abs, ps, pdf, other] :: Title: A Further Measurement of the beta-Delayed alpha-Particle Emission of 16N
Authors: R.H. France III (GCSU), E.L. Wilds (CT-DEP), J.E. McDonald (UHartford), M. Gai (Yale/UConn)
Comments: Supported by USDOE grants No. DE-FG02-91ER40609 and DE-FG02-94ER40870

We measured the beta-delayed alpha-particle emission spectrum of 16N with a sensitivity for beta-decay branching ratios of the order of 10-10. The 16N nuclei were produced using the d(15N,16N)p reaction with 70 MeV 15N beams and a deuterium gas target 7.5 cm long at a pressure of 1250 torr. The 16N nuclei were collected (over 10 s) using a thin aluminum foil with an areal density of 180 mu g/cm2 tilted at 7 Deg with respect to the beam. The activity was transferred to the counting area by means of a stepping motor in less than 3 s with the counting carried out over 8 s. The beta-delayed alpha-particles were measured using a time of flight method to achieve a sufficiently low background. Standard calibration sources (148Gd, 241Am, 208,209Po, and 227Ac) as well as alpha-particles and 7Li from the 10B(n,alpha)7Li reaction were used for an accurate energy calibration. The energy resolution of the catcher foil (180-220 keV) was calculated and the time of flight resolution (3-10 nsec) was measured using the beta-delayed alpha-particle emission from 8Li that was produced using the d(7Li,8Li)p reaction with the same setup. The line shape was corrected to account for the variation in the energy and time resolution and a high statistics spectrum of the beta-delayed alpha-particle emission of 16N is reported. However, our data (as well as earlier Mainz data and unpublished Seattle data) do not agree with an earlier measurement of the beta-delayed alpha-particle emission of 16N taken at TRIUMF after averaging over the energy resolution of our collection system. This disagreement, amongst other issues, prohibits accurate inclusion of the f-wave component in the R-matrix analysis.

Replacements

astro-ph/0601044 [abs, ps, pdf, other] :: Title: Light Bending as a Probe of the Nature of Dark Energy
Authors: Fabio Finelli, Matteo Galaverni, Alessandro Gruppuso
Comments: 5 pages, 2 figures, 1 table. References added, final version appeared in Physical Review D
Journal-ref: Physical Review D 75, 043003 (2007)
Note: replaced with revised version Mon, 12 Feb 2007 15:44:22 GMT (44kb)
astro-ph/0605213 [abs, ps, pdf, other] :: Title: The Faulty Assumptions of the Expanding-Universe Model vs. the Simple and Consistent Principles of a Flat-Universe Model
Authors: Jin He
Comments: The explanation to `accelerating expansion` is added. No figure
Note: replaced with revised version Sat, 10 Feb 2007 02:35:20 GMT (15kb)
astro-ph/0606286 [abs, ps, pdf, other] :: Title: Large-Scale Tests of the DGP Model
Authors: Yong-Seon Song, Ignacy Sawicki, Wayne Hu (KICP, U. Chicago)
Comments: 8 pages, 5 figures, added and updated references, version reflects that accepted by PRD, v3 fixes bibliography issues
Note: replaced with revised version Sat, 10 Feb 2007 23:48:08 GMT (56kb)
astro-ph/0608126 [abs, ps, pdf, other] :: Title: The Role of Sub-damped Lyman-alpha Absorbers in the Cosmic Evolution of Metals
Authors: V. P. Kulkarni (University of South Carolina), P. Khare (Utkal University), C. Peroux (European Southern Observatory), D. G. York (University of Chicago), J. T. Lauroesch (University of Louisville), J. D. Meiring (University of South Carolina)
Comments: 9 pages, 2 figures, Accepted for Publication in the Astrophysical Journal
Note: replaced with revised version Mon, 12 Feb 2007 04:43:40 GMT (26kb)
astro-ph/0608250 [abs, ps, pdf, other] :: Title: INTEGRAL observations of the cosmic X-ray background in the 5-100 keV range via occultation by the Earth
Authors: E. Churazov, R. Sunyaev, M. Revnivtsev, S. Sazonov, S. Molkov, S. Grebenev, C. Winkler, A. Parmar, A. Bazzano, M. Falanga, A. Gros, F. Lebrun, L. Natalucci, P. Ubertini, J.-P. Roques, L. Bouchet, E. Jourdain, J. Knoedlseder, R. Diehl, C. Budtz-Jorgensen, S. Brandt, N. Lund, N. J. Westergaard, A. Neronov, M. Turler, M. Chernyakova, R. Walter, N. Produit, N. Mowlavi, J. M. Mas-Hesse, A. Domingo, N. Gehrels, E. Kuulkers, P. Kretschmar, M. Schmidt
Comments: A&A, 14 pages, 12 figues
Note: replaced with revised version Mon, 12 Feb 2007 12:48:22 GMT (507kb)
astro-ph/0609338 [abs, ps, pdf, other] :: Title: Color Tomography
Authors: Bhuvnesh Jain (Penn), Andrew Connolly (Pittsburgh), Masahiro Takada (Tohoku)
Comments: 23 pages, 10 figures. Matches version accepted for JCAP
Note: replaced with revised version Mon, 12 Feb 2007 04:13:45 GMT (150kb)
astro-ph/0610064 [abs, ps, pdf, other] :: Title: Nonlinear perturbations of cosmological scalar fields
Authors: David Langlois, Filippo Vernizzi
Comments: 45 pages, typos corrected, references added to match with the JCAP published version
Note: replaced with revised version Mon, 12 Feb 2007 17:10:23 GMT (34kb)
astro-ph/0610484 [abs, ps, pdf, other] :: Title: The rest-frame optical luminosity functions of galaxies at 2<z<3.5
Authors: Danilo Marchesini, Pieter van Dokkum, Ryan Quadri, Gregory Rudnick, Marijn Franx, Paulina Lira, Stijn Wuyts, Eric Gawiser, Daniel Christlein, Sune Toft
Comments: 24 pages, 17 figures. Accepted for publication in ApJ. Minor corrections to match published version
Journal-ref: Astrophys. J. 656 (2007) 42-65
Note: replaced with revised version Fri, 9 Feb 2007 22:54:38 GMT (553kb)
astro-ph/0611333 [abs, ps, pdf, other] :: Title: Angular pattern of interferometers for scalar gravitational waves in the gauge of the local observer used for a potential detection of a stochastic background with advanced LIGO
Authors: Christian Corda
Comments: Submitted to the International Journal of Modern Physics D
Note: replaced with revised version Mon, 12 Feb 2007 17:12:25 GMT (120kb)
astro-ph/0611718 [abs, ps, pdf, other] :: Title: Magnetohydrodynamic Shearing Waves
Authors: Bryan M. Johnson
Comments: 14 pages, 4 figures, accepted for Publication in the Astrophysical Journal. Primary changes: added discussion of wave-action conservation as well as a section describing the energy and angular momentum transport properties of the solutions
Note: replaced with revised version Mon, 12 Feb 2007 20:11:28 GMT (60kb)
astro-ph/0612487 [abs, ps, pdf, other] :: Title: Construction of Exact Solutions in Two-Fields Models and the Crossing of the Cosmological Constant Barrier
Authors: S.Yu. Vernov (Skobeltsyn Institute of Nuclear Physics, Moscow State University)
Comments: LaTeX, 18 pages, 3 figures, Section 5 expanded, typos corrected, references added
Subj-class: Astrophysics; Mathematical Physics; Pattern Formation and Solitons
Note: replaced with revised version Sat, 10 Feb 2007 10:41:44 GMT (68kb)
astro-ph/0612508 [abs, ps, pdf, other] :: Title: Equipotential Surfaces and Lagrangian points in Non-synchronous, Eccentric Binary and Planetary Systems
Authors: J. F. Sepinsky, B. Willems, V. Kalogera
Comments: 12 pages, 10 figures, 2 Tables, Accepted by the Astrophysical Journal
Note: replaced with revised version Fri, 9 Feb 2007 23:38:57 GMT (289kb)
astro-ph/0612617 [abs, ps, pdf, other] :: Title: SN 2006gy: Discovery of the most luminous supernova ever recorded, powered by the death of an extremely massive star like Eta Carinae
Authors: Nathan Smith, Weidong Li, Ryan J. Foley, J. Craig Wheeler, Dave Pooley, Ryan Chornock, Alexei V. Filippenko, Jeffrey M. Silverman, Robert Quimby, Joshua S. Bloom, Charles Hansen
Comments: 13 pages, 5 color figs. submitted to ApJ. greatly expanded from previous version, but with original conclusions unchanged
Note: replaced with revised version Sat, 10 Feb 2007 01:50:28 GMT (534kb)
astro-ph/0701265 [abs, ps, pdf, other] :: Title: A MaxBCG Catalog of 13,823 Galaxy Clusters from the Sloan Digital Sky Survey
Authors: B.P. Koester, T.A. McKay, J. Annis, R. H. Wechsler, A. Evrard, L. Bleem, M. Becker, D. Johnston, E. Sheldon, R. Nichol, C. Miller, R. Scranton, N. Bahcall, J. Barentine, H. Brewington, J. Brinkmann, M. Harvanek, S. Kleinman, J. Krzesinski, D. Long, A. Nitta, D. Schneider, S. Sneddin, W. Voges, D. York, SDSS collaboration
Comments: 31 pages, 14 figures, 1 table, accepted to ApJ. References added/moved in Section 5. Online catalog available: this http URL
Note: replaced with revised version Sat, 10 Feb 2007 03:41:22 GMT (274kb)
astro-ph/0702066 [abs, ps, pdf, other] :: Title: Testing grain-surface chemistry in massive hot-core regions
Authors: S. E. Bisschop, J. K. Jorgensen, E. F. van Dishoeck, E. B. M. de Wachter
Comments: 20 pages, 8 figures, accepted by Astronomy and Astrophysics
Note: replaced with revised version Mon, 12 Feb 2007 14:01:34 GMT (294kb)
astro-ph/0702139 [abs, ps, pdf, other] :: Title: Effects of young stellar populations on determination of ages and metallicities of dominating stellar populations of galaxies
Authors: Zhongmu Li, Zhanwen Han
Comments: 8 pages, 19 figures. New version. Submitted to A&A
Note: replaced with revised version Mon, 12 Feb 2007 09:29:07 GMT (164kb)
astro-ph/0702219 [abs, ps, pdf, other] :: Title: Integrated Colours of Milky Way Globular Clusters and Horizontal Branch Morphology
Authors: Graeme H. Smith, Jay Strader (UCO/Lick Observatory)
Comments: 19 pages, including 26 figures. AN in press. Figure 9 stubbornly resists attempts to correct it
Note: replaced with revised version Fri, 9 Feb 2007 21:46:27 GMT (115kb)
astro-ph/0702232 [abs, ps, pdf, other] :: Title: Sunspot models with bright rings
Authors: L.L. Kitchatinov, G. Ruediger
Comments: 4 pages, 3 figures, submitted to F. Kneer et al. (eds.) Modern Solar Facilities -- Advanced Solar Science
Note: replaced with revised version Mon, 12 Feb 2007 11:07:29 GMT (45kb)
gr-qc/0701146 [abs, ps, pdf, other] :: Title: Reply to "Iorio's "high-precision measurement" of frame dragging with the Mars Global Surveyor'', by Kris Krogh
Authors: Lorenzo Iorio
Comments: LaTex2e, 5 pages, 7 references, no figures, no tables. It refers to astro-ph/0701653. Reference added, typos fixed. Important considerations added about point I)
Subj-class: General Relativity and Quantum Cosmology; Space Physics; Geophysics
Note: replaced with revised version Sun, 11 Feb 2007 15:03:19 GMT (5kb)
hep-ph/0702024 [abs, ps, pdf, other] :: Title: Electrogenesis via primordial black holes
Authors: Diego N. Pelliccia
Comments: 30 pages, no figures, added refs
Note: replaced with revised version Mon, 12 Feb 2007 18:50:00 GMT (22kb)
hep-ph/0702047 [abs, ps, pdf, other] :: Title: Vacuum Birefringence Caused by Arbitrary Spin Particles
Authors: S. I. Kruglov
Comments: 7 pages, minor corrections
Note: replaced with revised version Sun, 11 Feb 2007 23:12:32 GMT (5kb)
hep-th/0611094 [abs, ps, pdf, other] :: Title: Dark energy from bulk matter
Authors: C. Bogdanos, A. Dimitriadis, K. Tamvakis
Comments: 10 pages, 1 figure. Replaced plot, corrected inequality on p.6, substituted $w$ with $w_{eff}$ below eq. 23
Note: replaced with revised version Mon, 12 Feb 2007 16:50:42 GMT (23kb)
hep-th/0611259 [abs, ps, pdf, other] :: Title: Colliding Branes in Heterotic M-theory
Authors: Jean-Luc Lehners, Paul McFadden, Neil Turok
Comments: 29 pp, 4 figs; Appendix B revised to include junction condition for scalar
Note: replaced with revised version Mon, 12 Feb 2007 17:00:32 GMT (517kb)
nlin.SI/0605027 [abs, ps, pdf, other] :: Title: Clifford Algebra Derivations of Tau-Functions for Two-Dimensional Integrable Models with Positive and Negative Flows
Authors: Henrik Aratyn, Johan van de Leur
Comments: This is a contribution to the Vadim Kuznetsov Memorial Issue on Integrable Systems and Related Topics, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at this http URL
Subj-class: Exactly Solvable and Integrable Systems; Mathematical Physics
Journal-ref: SIGMA 3 (2007), 020, 29 pages
Note: replaced with revised version Mon, 12 Feb 2007 19:19:28 GMT (26kb)

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gr-qc/0701001 [abs, ps, pdf, other] :: Title: Spectral Broadening of Radiation from Relativistic Collapsing Objects
Authors: V. Frolov (1), K. Kim (2), H.K. Lee (1 and 2) ((1) University of Alberta, (2) Hanyang University)
Comments: 4 pages, 4 figures, Typos are corrected and substantial parts of main text are rephrased for more better presentation. 1 reference is added

We study light curves and the spectral broadening of the radiation emitted during the finite interval of time by a surface of a collapsing object. We study a simplified model of monochromatic radiations from a spherical surface which is assumed to be falling freely. We discuss the possible way how to infer the physical parameters, such as the mass and radii of emission, from the light curves and spectral broadenings.
gr-qc/0702062 [abs, ps, pdf, other] :: Title: Gravity induced neutrino-antineutrino oscillation: CPT and lepton number non-conservation under gravity
Authors: Banibrata Mukhopadhyay
Comments: 15 pages; Accepted for publication in Classical and Quantum Gravity

We introduce a new effect in the neutrino oscillation phase which shows the neutrino-antineutrino oscillation is possible under gravity even if the rest masses of the corresponding eigenstates are same. This is due to CPT violation and possible to demonstrate if the neutrino mass eigenstates are expressed as a combination of neutrino and antineutrino eigenstates, as of the neutral kaon system, with the plausible breaking of lepton number conservation. For Majorana neutrinos, this oscillation is expected to affect significantly the inner edge of neutrino dominated accretion disks around a compact object by influencing the neutrino sphere which controls the accretion dynamics, and then the related type-II supernova evolution and the r-process nucleosynthesis. On the other hand, in early universe, in presence of various lepton number violating processes, this oscillation, we argue, might lead to neutrino asymmetry which resulted baryogenesis from the B-L symmetry by electro-weak sphaleron processes.
hep-ph/0702120 [abs, ps, pdf, other] :: Title: Explanation of the RHIC HBT Puzzle by a Granular Source of Quark-Gluon Plasma Droplets
Authors: Wei-Ning Zhang (Dalien Univ. Tech. & Harbin Inst. Tech.), Cheuk-Yin Wong (ORNL & UT)
Comments: 8 pages, 4 figures, invited talk presented at the XI International Workshop on Correlation and Fluctuation in Multiparticle Production, Nov. 21-24, 2006, Hangzhou, China

We present a review on the explanation of the RHIC HBT puzzle by a granular pion-emitting source of quark-gluon plasma droplets. The evolution of the droplet is described by relativistic hydrodynamics with an equation of state suggested by lattice gauge results. The granular source evolution is obtained by superposing all of the evolutions of individual droplets. Pions are assumed to be emitted thermally from the droplets at the freeze-out configuration characterized by a freeze-out temperature $T_f$. We find that the average particle emission time scales with the initial radius of the droplet. Pions will be emitted earlier if the droplet radius is smaller. An earlier emission time will lead to a smaller extracted HBT radius $R_{\rm out}$, while the extracted HBT radius $R_{\rm side}$ is determined by the scale of the distribution of the droplet centers. However, a collective expansion of the droplets can further decrease $R_{\rm out}$. As a result, the value of $R_{\rm out}/R_{\rm side}$ can be close to, or even less than 1 for the
hep-th/0702082 [abs, ps, pdf, other] :: Title: Complexity of chaotic fields and standard model parameters
Authors: Christian Beck
Comments: 27 pages, 7 figures. Invited lectures given at the Erice summer school `The Logic of Nature, Complexity and New Physics: From Quark-Gluon Plasma to Superstrings, Quantum Gravity and Beyond' (Erice, 29 Aug.-7. Sept. 2006)

In order to understand the parameters of the standard model of electroweak and strong interactions (coupling constants, masses, mixing angles) one needs to embed the standard model into some larger theory that accounts for the observed values. This means some additional sector is needed that fixes and stabilizes the values of the fundamental constants of nature. In these lecture notes we describe in nontechnical terms how such a sector can be constructed. Our additional sector is based on rapidly fluctuating scalar fields that, although completely deterministic, evolve in the strongest possible chaotic way and exhibit complex behaviour. These chaotic fields generate potentials for moduli fields, which ultimately fix the fundamental parameters. The chaotic dynamics can be physically interpreted in terms of vacuum fluctuations. These vacuum fluctuations are different from those of QED or QCD but coupled with the same moduli fields as QED and QCD are. The vacuum energy generated by the chaotic fields underlies the currently observed dark energy of the universe. Our theory correctly predicts the numerical values of the electroweak and strong coupling constants using a simple principle, the minimization of vacuum energy. Implementing some additional discrete symmetry assumptions one also obtains predictions for fermion masses, as well as a Higgs mass prediction of 154 GeV.
nucl-th/0702027 [abs, ps, pdf, other] :: Title: Interplay between kaon condensation and hyperons in highly dense matter
Authors: Takumi Muto
Comments: 31 pages, 16 figures

Possible coexistence and/or competition of kaon condensation with hyperons are investigated in hyperonic matter, where hyperons are mixed in the ground state of neutron-star matter. The formulation is based on the effective chiral Lagrangian for the kaon-baryon interaction and the nonrelativistic baryon-baryon interaction model. First, the onset condition of the s-wave kaon condensation realized from hyperonic matter is reexamined. It is shown that the usual assumption of the continuous phase transition is not always kept valid in the presence of the negatively charged hyperons. Second, the equation of state (EOS) of the kaon-condensed phase in hyperonic matter is discussed. In the case of the stronger kaon-baryon attractive interaction, it is shown that a local energy minimum with respect to the baryon number density appears as a result of considerable softening of the EOS due to both kaon condensation and hyperon-mixing and recovering of the stiffness of the EOS at very high densities. This result implies a possible existence of self-bound objects with kaon condensates on any scale from an atomic nucleus to a neutron star.

Replacements

astro-ph/0608051 [abs, ps, pdf, other] :: Title: Density Fluctuations in MHD Turbulence: Spectra, Intermittency and Topology
Authors: G. Kowal, A. Lazarian, A. Beresnyak
Comments: 55 pages, 18 figures
Note: replaced with revised version Mon, 12 Feb 2007 21:40:49 GMT (682kb)
astro-ph/0608474 [abs, ps, pdf, other] :: Title: Luminosity Dependence in the Fundamental Plane Projections of Elliptical Galaxies
Authors: Louis-Benoit Desroches, Eliot Quataert, Chung-Pei Ma, Andrew A. West
Comments: submitted to MNRAS
Note: replaced with revised version Mon, 12 Feb 2007 21:05:09 GMT (101kb)
astro-ph/0608689 [abs, ps, pdf, other] :: Title: On the role of the current loss in radio pulsar evolution
Authors: V.S.Beskin, E.E.Nokhrina
Comments: 4 pages, to appear in Astrophysics and Space Science, Special Issue: Isolated Neutron Stars. In the replaced paper we amended several misprints (coefficients in equations 12,14,15) and removed the excessive explanation for the boundary condition (4)
Note: replaced with revised version Tue, 13 Feb 2007 11:47:07 GMT (22kb)
astro-ph/0610100 [abs, src] :: Title: This paper has been withdrawn
Authors: Promita Chakraborty
Comments: This paper has been withdrawn by author
Note: replaced with revised version Tue, 13 Feb 2007 00:09:01 GMT (0kb,I)
astro-ph/0611498 [abs, ps, pdf, other] :: Title: The Lowest Mass White Dwarf
Authors: Mukremin Kilic, Carlos Allende Prieto, Warren R. Brown, D. Koester
Comments: ApJ, accepted version
Note: replaced with revised version Tue, 13 Feb 2007 16:48:16 GMT (206kb)
astro-ph/0612282 [abs, ps, pdf, other] :: Title: Characteristics of supernova remnant G351.7+0.8 and a distance argument against its association with PSR J1721-3532
Authors: W.W. Tian, M. Haverkorn, H.Y. Zhang
Comments: 9 pages, 3 figures, accepted by MNRAS
Note: replaced with revised version Tue, 13 Feb 2007 18:15:37 GMT (231kb)
astro-ph/0701474 [abs, ps, pdf, other] :: Title: Interpretation of the Helix Planetary Nebula using Hydro-Gravitational-Dynamics: Planets and Dark Energy
Authors: Carl H. Gibson (UCSD), Rudolph E. Schild (Harvard)
Comments: 46 pages 11 figures, see this http URL for further information and higher resolution figures
Note: replaced with revised version Tue, 13 Feb 2007 13:25:36 GMT (825kb)
astro-ph/0701499 [abs, ps, pdf, other] :: Title: Detailed chemical composition of Galactic Cepheids. A determination of the Galactic abundance gradient in the 8-12 kpc region
Authors: B. Lemasle (1 and 2), P. Francois (3 and 2), G. Bono (4 and 5), M. Mottini (5), F. Primas (5), M. Romaniello (5) ((1) Université de Picardie Jules Verne, Faculté des Sciences, Amiens, France (2) Observatoire de Paris-Meudon, GEPI, Paris/Meudon, France (3) European Southern Observatory (ESO), Santiago, Chile (4) INAF-Osservatorio Astronomico di Roma, Monte Porzio Catone, Italy (5) European Southern Observatory (ESO), Garching, Germany)
Comments: Accepted in A&A
Note: replaced with revised version Tue, 13 Feb 2007 18:03:14 GMT (68kb)
astro-ph/0701554 [abs, ps, pdf, other] :: Title: Theory of heating of hot magnetized plasma by Alfven waves. Application for solar corona
Authors: T.M. Mishonov, M.V. Stoev, Y.G. Maneva
Comments: 6 pages, no figures
Note: replaced with revised version Tue, 13 Feb 2007 15:31:06 GMT (11kb)
astro-ph/0701662 [abs, ps, pdf, other] :: Title: The behavior of $f(R)$ gravity in the solar system, galaxies and clusters
Authors: Pengjie Zhang (SHAO)
Comments: 4 pages, no figure. Submitted to PRD. Comments welcome. References added. Appendix removed
Note: replaced with revised version Tue, 13 Feb 2007 20:28:07 GMT (8kb)
astro-ph/0701709 [abs, ps, pdf, other] :: Title: A Possible Link Between the Galactic Center HESS Source and Sgr A*
Authors: D.R. Ballantyne (1), Fulvio Melia (1,2), Siming Liu (3), Roland M. Crocker (4) ((1) Physics Dept., U. of Arizona (2) Steward Observatory (3) LANL (4) Univ. of Adelaide)
Comments: 4 pages, 2 figures, accepted to ApJ Letters
Note: replaced with revised version Tue, 13 Feb 2007 18:41:51 GMT (180kb)
astro-ph/0701812 [abs, ps, pdf, other] :: Title: Rest frame light curves of Swift GRBs
Authors: V. Mangano (1), V. La Parola (1), E. Troja (1), G. Cusumano (1), T. Mineo (1), D. Burrows (2), S. Campana (3), M.Capalbi (4), G. Chincarini (3,5), N.Gehrels (6), P. Giommi (4), A. Moretti (3), M. Perri (4), P. Romano (3); ((1) INAF-IASF PA, (2) Dept of Astronomy & Astrophysics, PSU, (3) INAF-Osservatorio Astronomico di Brera, (4) ASI-Science Data Center, (5) Universita degli Studi di Milano, Bicocca)
Comments: 5 pages, 7 figures. Proceedings of "SWIFT and GRBs: Unveiling the Relativistic Universe" June 5-9, 2006 Venice (Italy). New version with official aknowledgments
Note: replaced with revised version Tue, 13 Feb 2007 10:08:15 GMT (180kb)
astro-ph/0702160 [abs, ps, pdf, other] :: Title: The spectral energy distribution of the central parsec-scaled region of AGN
Authors: M. A. Prieto (1), J. Reunanen (2), Th. Beckert (3), K. R. W. Tristram (4), N. Neumayer (4), J. A. Fernandez-Ontiveros (1), J. Acosta (1) ((1) IAC, Tenerife;(2) Leiden Observatory; (3) MPIfR, Bonn; (4) MPIA, Heidelberg)
Comments: Talk presented at the Conference "The Central Engine of Active Galactic Nuclei", held in Xian, China on 16 - 21 October, 2006. Conference proceedings ed. L. C. Ho and J.-M. Wang (San Francisco: ASP)
Note: replaced with revised version Tue, 13 Feb 2007 15:29:08 GMT (270kb)
astro-ph/0702237 [abs, ps, pdf, other] :: Title: Constraining bouncing cosmology caused by Casimir effect
Authors: Wlodzimierz Godlowski, Marek Szydlowski, Zong-Hong Zhu
Comments: 19 pages, 2 figures
Note: replaced with revised version Tue, 13 Feb 2007 13:01:07 GMT (64kb)
astro-ph/0702297 [abs, ps, pdf, other] :: Title: New abundance determinations in z < 1.5 QSO absorbers: seven sub-DLAs and one DLA
Authors: Joseph D. Meiring (1), James T. Lauroesch (2), Varsha P. Kulkarni (1), Celine Reroux (3), Puspa Khare (4), Donald G. York (5), Arlin P.S. Crotts (6) ((1) University of South Carolina, (2) University of Louisville, (3) ESO, (4) Utkal University, (5) University of Chicago, (6) Columbia University)
Comments: 15 pages, 15 Figures, Accepted by MNRAS, updated references
Note: replaced with revised version Tue, 13 Feb 2007 03:10:05 GMT (196kb)
astro-ph/0702313 [abs, ps, pdf, other] :: Title: The inner structure of the S0 galaxy NGC3384
Authors: H. Meusinger, H. A. Ismail, P. Notni
Comments: 15 pages, 17 figures, to be published in Astronomische Nachrichten
Note: replaced with revised version Tue, 13 Feb 2007 13:43:16 GMT (555kb)
hep-ph/0605120 [abs, ps, pdf, other] :: Title: Direct Detection of Supersymmetric Particles in Neutrino Telescopes
Authors: Ivone F. M. Albuquerque, Gustavo Burdman, Z. Chacko
Comments: 11 pages, 9 figures, final version in the Physical Review D
Journal-ref: Phys. Rev. D75, 035006 (2007)
Note: replaced with revised version Tue, 13 Feb 2007 18:20:18 GMT (59kb)
hep-th/0610232 [abs, ps, pdf, other] :: Title: Generating the curvature perturbation with instant preheating
Authors: Tomohiro Matsuda
Comments: 17 pages, 1 figure, To appear in JCAP
Note: replaced with revised version Tue, 13 Feb 2007 04:16:06 GMT (46kb)
hep-th/0610286 [abs, ps, pdf, other] :: Title: Fermions on Colliding Branes
Authors: Gary Gibbons, Kei-ichi Maeda, Yu-ichi Takamizu
Comments: 8 pages 7 figures
Note: replaced with revised version Tue, 13 Feb 2007 08:18:01 GMT (27kb)
nucl-th/0610127 [abs, ps, pdf, other] :: Title: Propagation of strangelets in the Earth's atmosphere
Authors: Fei Wu (PKU), Ren-Xin Xu (PKU), Bo-Qiang Ma (PKU)
Comments: 10 pages, 6 figures
Journal-ref: J. Phys. G: Nucl. Part. Phys. 34 (2007) 597-605
Note: replaced with revised version Tue, 13 Feb 2007 00:46:31 GMT (113kb)

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gr-qc/0702064 [abs, ps, pdf, other] :: Title: Non-linear vector perturbations in a contracting universe
Authors: Filipe C. Mena, David J. Mulryne, Reza Tavakol
Comments: 16 pages, no figures

A number of scalar field models proposed as alternatives to the standard inflationary scenario involve contracting phases which precede the universe's present phase of expansion. An important question concerning such models is whether there are effects which could potentially distinguish them from purely expanding cosmologies. Vector perturbations have recently been considered in this context. At first order such perturbations are not supported by a scalar field. In this paper, therefore, we consider second order vector perturbations. We show that such perturbations are generated by first order scalar mode-mode couplings, and give an explicit expression for them. We compare the magnitude of vector perturbations produced in collapsing models with the corresponding amplitudes produced during inflation, using a number of suitable power-law solutions to model the inflationary and collapsing scenarios. We conclude that the ratios of the magnitudes of these perturbations depend on the details of the collapsing scenario as well as on how the hot big bang is recovered, but for certain cases could be large, growing with the duration of the collapse.
hep-th/0702048 [abs, ps, pdf, other] :: Title: Living on a dS brane: Effects of KK modes on inflation
Authors: Claudia de Rham, Scott Watson
Comments: 21 pages, no figures

We develop a formalism to study non-local higher-dimensional effects in braneworld scenarios from a four-dimensional effective theory point of view and check it against the well-known Garriga-Tanaka result in the appropriate limit. We then use this formalism to study the spectrum of density perturbations during inflation as seen from the lower-dimensional effective theory. In particular, we find that the gravitational potential is greatly enhanced at short wavelengths. The consequences to the curvature perturbations are nonetheless very weak and will lead to no characteristic signatures on the power spectrum.
hep-th/0702098 [abs, ps, pdf, other] :: Title: Casimir effect in rugby-ball type flux compactifications
Authors: Emilio Elizalde, Masato Minamitsuji, Wade Naylor
Comments: 14 pages, 6 figures

As a continuation of the work in \cite{mns}, we discuss the Casimir effect for a massless bulk scalar field in a 4D toy model of a 6D warped flux compactification model,to stabilize the volume modulus. The one-loop effective potential for the volume modulus has a form similar to the Coleman-Weinberg potential. The stability of the volume modulus against quantum corrections is related to an appropriate heat kernel coefficient. However, to make any physical predictions after volume stabilization, knowledge of the derivative of the zeta function, $\zeta'(0)$ (in a conformally related spacetime) is also required. By adding up the exact mass spectrum using zeta function regularization, we present a revised analysis of the effective potential. Finally, we discuss some physical implications, especially concerning the degree of the hierarchy between the fundamental energy scales on the branes. For a larger degree of warping our new results are very similar to the previous ones \cite{mns} and imply a larger hierarchy. In the non-warped (rugby-ball) limit the ratio tends to converge to the same value, independently of the bulk dilaton coupling.
nucl-th/0702043 [abs, ps, pdf, other] :: Title: Accelerating Solutions of Perfect Fluid Hydrodynamics for Initial Energy Density and Life-Time Measurements in Heavy Ion Collisions
Authors: T. Csorgo, M. I. Nagy, M. Csanad
Comments: 3 pages, based on T. Csorgo's talk at the XXXVIth Int. Symp. Multiparticle Dynamics (ISMD 2006), Paraty, RJ, Brazil. Submitted to the Brazilian Journal of Physics

A new class of accelerating, exact, explicit and simple solutions of relativistic hydrodynamics is presented. Since these new solutions yield a finite rapidity distribution, they lead to an advanced estimate of the initial energy density and life-time of high energy heavy ion reactions. Accelerating solutions are also given for spherical expansions in arbitrary number of spatial dimensions.

Replacements

astro-ph/0605679 [abs, ps, pdf, other] :: Title: Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion
Authors: Christian T. Byrnes, David Wands (Portsmouth U., ICG)
Comments: 16 pages, no figures; v2- version published in PRD; v3- corrections to second order terms in several equations
Journal-ref: Phys.Rev. D74 (2006) 043529
Note: replaced with revised version Wed, 14 Feb 2007 15:06:23 GMT (19kb)
astro-ph/0610827 [abs, ps, pdf, other] :: Title: The `666' collaboration on OGLE transits: I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with VLT deconvolution photometry
Authors: Frederic Pont, Claire Moutou, Michael Gillon, Andrzej Udalski, Francois Bouchy, Joao Fernandes, Wolfgang Gieren, Michel Mayor, Tsevi Mazeh, Dante Minniti, Claudio Melo, Dominique Naef, Grzegorz Pietrzynski, Didier Queloz, Maria Teresa Ruiz, Nuno Santos, Stephane Udry
Comments: Fundamental updates compared to previous version; accepted for publication in Astronomy & Astrophysics
Note: replaced with revised version Wed, 14 Feb 2007 10:53:28 GMT (409kb)
astro-ph/0612196 [abs, ps, pdf, other] :: Title: Reconstruction of the deceleration parameter and the equation of state of dark energy
Authors: Yungui Gong, Anzhong Wang
Comments: 9 figures, added four contour plots and some discussions on the sweet spot, main conclusion unchanged; v3: references added, PRD in press
Note: replaced with revised version Tue, 13 Feb 2007 23:53:32 GMT (29kb)
astro-ph/0612732 [abs, ps, pdf, other] :: Title: Bright and Dark Matter in Elliptical Galaxies: Mass and Velocity Distributions from Self-consistent Hydrodynamical Simulations
Authors: J. Oñorbe, R. Domínguez-Tenreiro, A. Sáiz, A. Serna
Comments: 24 pages, 27 figures. Accepted by MNRAS. Some figures have degraded resolution. Minor changes to match published version
Note: replaced with revised version Wed, 14 Feb 2007 16:50:57 GMT (465kb)
astro-ph/0701767 [abs, ps, pdf, other] :: Title: On the X-ray and optical properties of the Be star HD 110432: a very hard-thermal X-ray emitter
Authors: Raimundo Lopes de Oliveira (1,2), Christian Motch (2), Myron A. Smith (3), Ignacio Negueruela (4), Jose M. Torrejon (4); (1-IAG/USP, Brazil; 2-Observatoire Astronomique de Strasbourg, France; 3-Catholic Univ. of America, USA; 4-Univ. de Alicante, Spain)
Comments: 16 pages, 10 figures, submitted to A&A
Note: replaced with revised version Wed, 14 Feb 2007 00:38:39 GMT (596kb)
astro-ph/0701882 [abs, ps, pdf, other] :: Title: An Empirically-Calibrated Model For Interpreting the Evolution of Galaxies During the Reionization Era
Authors: Daniel P. Stark (Caltech), Abraham Loeb (Harvard), Richard S. Ellis (Caltech)
Comments: 17 pages, 12 figures, submitted to ApJ
Note: replaced with revised version Wed, 14 Feb 2007 05:14:24 GMT (70kb)
astro-ph/0702269 [abs, ps, pdf, other] :: Title: "Meissner effect" and Blandford-Znajek mechanism in conductive black hole magnetospheres
Authors: S.S.Komissarov, J.C. McKinney
Comments: Accepted by MNRAS Letters
Note: replaced with revised version Wed, 14 Feb 2007 13:04:21 GMT (895kb)
astro-ph/0702275 [abs, ps, pdf, other] :: Title: Escaping from MOND
Authors: Benoit Famaey, Jean-Philippe Bruneton, HongSheng Zhao
Comments: 4 pages, 1 figure, submitted to MNRAS; added references
Note: replaced with revised version Wed, 14 Feb 2007 17:09:02 GMT (12kb)
hep-ph/0610027 [abs, ps, pdf, other] :: Title: Time variation of proton-electron mass ratio and fine structure constant with runaway dilaton
Authors: Takeshi Chiba, Tatsuo Kobayashi, Masahide Yamaguchi, Jun'ichi Yokoyama
Comments: 16 pages, 1 figure, to appear in Phys. Rev. D
Note: replaced with revised version Wed, 14 Feb 2007 06:16:38 GMT (23kb)
cond-mat/0611354 [abs, ps, pdf, other] :: Title: Gauge effects on phase transitions in superconductors
Authors: D. V. Shopova, T. E. Tsvetkov, D. I. Uzunov
Comments: 37 pages, 4 figs; J. Phys. Studies (2006; in press)
Subj-class: Superconductivity; Statistical Mechanics; Materials Science; Strongly Correlated Electrons
Note: replaced with revised version Wed, 14 Feb 2007 12:14:58 GMT (56kb)

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gr-qc/0702075 [abs, ps, pdf, other] :: Title: The cosmological constant as an eigenvalue of f(R)-gravity Hamiltonian constraint
Authors: S. Capozziello, R. Garattini
Comments: 16 pages, to appear in Class. Quant. Grav

In the framework of ADM formalism, it is possible to find out eigenvalues of the WDW equation with the meaning of vacuum states, i.e. cosmological constants, for f(R) theories of gravity, where f(R) is a generic analytic function of the Ricci curvature scalar R. The explicit calculation is performed for a Schwarzschild metric where one-loop energy is derived by the zeta function regularization method and a renormalized running Lambda constant is obtained.
gr-qc/0702076 [abs, ps, pdf, other] :: Title: A choreographic solution to the general relativistic three-body problem
Authors: Tatsunori Imai, Takamasa Chiba, Hideki Asada
Comments: 11 pages, 5 figures

We revisit the three-body problem in the framework of general relativity. The Newtonian N-body problem admits choreographic solutions, where a solution is called choreographic if every massive particles move periodically in a single closed orbit. One is a stable figure-eight orbit of a three-body system, which was found first by Moore (1993) and re-discovered with its existence proof by Chenciner and Montgomery (2000), In general relativity, however, the periastron shift prohibits a binary system from orbiting in a closed curve. Therefore, it is unclear whether general relativistic effects admit a choreographic solution such as the figure-eight. We carefully examine general relativistic corrections to initial conditions so that an orbit to a three-body system can be closed in a figure-eight. This solution is still choreographic without causing periastron shift. This illustration suggests that the general relativistic N-body problem also may admit a certain class of choreographic solutions.
hep-th/0702107 [abs, ps, pdf, other] :: Title: Comparing Brane Inflation to WMAP
Authors: Rachel Bean, Sarah E. Shandera, S. H. Henry Tye, Jiajun Xu
Comments: 45 pages 11 figures

We compare the simplest realistic brane inflationary model to recent cosmological data, including WMAP 3-year cosmic microwave background (CMB) results, Sloan Digital Sky Survey luminous red galaxies (SDSS LRG) power spectrum data and Supernovae Legacy Survey (SNLS) Type 1a supernovae distance measures. Here, the inflaton is simply the position of a $D3$-brane which is moving towards a $\bar{D}3$-brane sitting at the bottom of a throat (a warped, deformed conifold) in the flux compactified bulk in Type IIB string theory. The analysis includes both the usual slow-roll scenario and the Dirac-Born-Infeld scenario of slow but relativistic rolling. Requiring that the throat is inside the bulk greatly restricts the allowed parameter space. We discuss possible scenarios in which large tensor mode and/or non-Gaussianity may emerge. Here, the properties of a large tensor mode deviate from that in the usual slow-roll scenario, providing a possible stringy signature. Overall, within the brane inflationary scenario, the cosmological data is providing information about the properties of the compactification of the extra dimensions.
nucl-th/0702044 [abs, ps, pdf, other] :: Title: Neutrino Breakup of A=3 Nuclei in Supernovae
Authors: E. O'Connor, D. Gazit, C.J. Horowitz, A. Schwenk, N. Barnea
Comments: 6 pages, 2 figures

We extend the virial equation of state to include 3H and 3He nuclei, and predict significant mass-three fractions near the neutrinosphere in supernovae. While alpha particles are often more abundant, we demonstrate that energy transfer cross-sections for muon and tau neutrinos at low densities are dominated by breakup of the loosely-bound 3H and 3He nuclei. The virial coefficients involving A=3 nuclei are calculated directly from the corresponding nucleon-3H and nucleon-3He scattering phase shifts. For the neutral-current inelastic cross-sections and the energy transfer cross sections, we perform ab-initio calculations based on microscopic two- and three-nucleon interactions and meson-exchange currents.

Replacements

astro-ph/0604199 [abs, ps, pdf, other] :: Title: Prospects for Lunar Satellite Detection of Radio Pulses from Ultrahigh Energy Neutrinos Interacting with the Moon
Authors: O. Stål, J.E.S. Bergman, B. Thidé, L.K.S. Daldorff, G. Ingelman
Comments: RevTeX (4 pages, 2 figures). v2 includes updated results and extended discussion
Journal-ref: Phys. Rev. Lett. 98, 071103 (2007)
Note: replaced with revised version Thu, 15 Feb 2007 11:36:23 GMT (46kb)
astro-ph/0609336 [abs, ps, pdf, other] :: Title: Galaxy Clusters Associated with Short GRBs. II. Predictions for the Rate of Short GRBs in Field and Cluster Early-Type Galaxies
Authors: Min-Su Shin (Princeton), Edo Berger (OCIW & Princeton)
Comments: ApJ accepted version
Note: replaced with revised version Thu, 15 Feb 2007 20:50:39 GMT (27kb)
astro-ph/0610603 [abs, ps, pdf, other] :: Title: Outcome of Six Candidate Transiting Planets from a TrES Field in Andromeda
Authors: Francis T. O'Donovan, David Charbonneau, Roi Alonso, Timothy M. Brown, Georgi Mandushev, Edward W. Dunham, David W. Latham, Robert P. Stefanik, Guillermo Torres, Mark E. Everett
Comments: v1. Submitted to ApJ, 22 July 2006. 14 pages, 8 figures, 4 tables. Updated references, author order and author affiliations. v.2 Substantial changes made to text. Accepted for publication in ApJ. v3. Corrections made to source that do not impact text
Note: replaced with revised version Wed, 14 Feb 2007 22:24:51 GMT (550kb)
astro-ph/0701426 [abs, ps, pdf, other] :: Title: Dark Matter annihilation in Draco: new considerations of the expected gamma flux
Authors: M. A. Sanchez-Conde (1), F. Prada (1), E. L. Lokas (2), M. E. Gomez (3), R. Wojtak (2), M. Moles (1) ((1) Instituto de Astrofisica de Andalucia - CSIC, (2) Nicolaus Copernicus Astronomical Centre, (3) Departamento de Fisica Aplicada, Facultad de Ciencias Experimentales, Universidad de Huelva)
Comments: 19 pages, 9 figures and 3 tables. This version is not the final one. Section 5 is now being modified
Note: replaced with revised version Thu, 15 Feb 2007 11:03:30 GMT (257kb)
astro-ph/0701573 [abs, ps, pdf, other] :: Title: Optically observable zero-age main-sequence O stars
Authors: Nolan R. Walborn (Space Telescope Science Institute)
Comments: 10 pages, 4 figures, 1 table; to be published in "Massive Stars: From Pop III and GRBs to the Milky Way," eds. Mario Livio & Eva Villaver, CUP. V2: changes to Section 2.2 and added a reference
Note: replaced with revised version Thu, 15 Feb 2007 19:11:30 GMT (89kb)
astro-ph/0701810 [abs, ps, pdf, other] :: Title: Six new candidate ultracompact X-ray binaries
Authors: J.J.M. in 't Zand (SRON & Utrecht University), P.G. Jonker (SRON, Utrecht University & Harvard CfA), C.B. Markwardt (University of Maryland & NASA-GSFC)
Comments: Section 2 corrected and improved thanks to comments by J.-P. Lasota. Accepted for publication in Astronomy and Astrophysics
Note: replaced with revised version Thu, 15 Feb 2007 10:54:20 GMT (235kb)
astro-ph/0702033 [abs, ps, pdf, other] :: Title: The penetration of FUV radiation into molecular clouds
Authors: Javier Goicoechea (LERMA), Jacques Le Bourlot (LUTH)
Comments: Accepted for publication in Astronomy & Astrophysics. Section 2. Astrophysical processes. Version 2: minor language corrections added. Figs. 2, 4 and 8 bitmapped to lower resolution
Note: replaced with revised version Thu, 15 Feb 2007 15:57:55 GMT (476kb)
astro-ph/0702064 [abs, ps, pdf, other] :: Title: Effects related to spacetime foam in astrophysics
Authors: A. A. Kirillov
Comments: 5 pages. submited in MNRAS
Note: replaced with revised version Thu, 15 Feb 2007 16:39:42 GMT (11kb)
gr-qc/0605130 [abs, ps, pdf, other] :: Title: Uniqueness of Petrov type D spatially inhomogeneous irrotational silent models
Authors: Pantelis S Apostolopoulos, Jaume Carot
Comments: Latex, 19 pages, no figures;(v2) some clarification remarks and an appendix are added; (v3) minor changes to match published version
Note: replaced with revised version Thu, 15 Feb 2007 11:15:34 GMT (22kb)
gr-qc/0612049 [abs, ps, pdf, other] :: Title: MHD of rotating compact stars with spectral methods: description of the algorithm and tests
Authors: S. Bonazzola, L. Villain, M. Bejger
Comments: 15 pages, 4 figures (new figure added, misprints corrected) Article accepted for publication in a special issue of Classical and Quantum Gravity "New Frontiers in Numerical Relativity"
Note: replaced with revised version Thu, 15 Feb 2007 09:54:56 GMT (43kb)

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e-mail To: physics@arXiv.org, Subject: subscribe
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