Astrophysics

Authors and titles for March 2005

[701] arXiv:astro-ph/0503701 [pdf, other]

Title: Are violent events responsible of a Galaxy Morphological loop?

C. Scannapieco (1), A. V. Smith Castelli (1 and 2), P. B. Tissera (1) ((1) Instituto de Astronomía y Física del Espacio, Buenos Aires, Argentina, (2) Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Argentina)

Comments: 2 pages. To appear in the proceedings of the IAUC198 "Near-Field Cosmology with Dwarf Elliptical Galaxies", 14 - 18 March 2005, Les Diablerets, Switzerland

Subjects: Astrophysics (astro-ph)

[702] arXiv:astro-ph/0503702 [pdf, other]

Title: The Sun as a MHD generator: application of a new heating mechanism for the coronal loops and closed magnetic structures

David Tsiklauri (University of Salford)

Comments: final, accepted in Astron. Astrophys. version

Journal-ref: Astron.Astrophys. 441 (2005) 1177-1181

Subjects: Astrophysics (astro-ph); Plasma Physics (physics.plasm-ph); Space Physics (physics.space-ph)

[703] arXiv:astro-ph/0503703 [pdf, other]

Title: Correcting the influence of an asymmetric line spread function in 2-degree Field spectrograph data

N. F. Martin, R. A. Ibata, B. C. Conn, M. J. Irwin, G. F. Lewis

Comments: 9 pages, 9 figures, accepted to PASA, minor changes

Subjects: Astrophysics (astro-ph)

[704] arXiv:astro-ph/0503704 [pdf, other]

Title: Rigorous luminosity function determination in presence of a background: theory and application to two intermediate redshift clusters

S. Andreon, G. Punzi, A. Grado

Comments: MNRAS, in press

Journal-ref: Mon.Not.Roy.Astron.Soc. 360 (2005) 727-736

Subjects: Astrophysics (astro-ph)

[705] arXiv:astro-ph/0503705 [pdf, other]

Title: A radial velocity survey of low Galactic latitude structures: I. Kinematics of the Canis Major dwarf galaxy

N. F. Martin, R. A. Ibata, B. C. Conn, G. F. Lewis, M. Bellazzini, M. J. Irwin

Comments: 9 pages, 8 figures, accepted for publication in MNRAS. Significant changes in the observations/reduction section, conclusions unchanged

Journal-ref: Mon.Not.Roy.Astron.Soc. 362 (2005) 906-914

Subjects: Astrophysics (astro-ph)

[706] arXiv:astro-ph/0503706 [pdf, other]

Title: Evolving Dark Energy with w Deviating from -1

Lawrence J. Hall, Yasunori Nomura, Steven J. Oliver

Comments: 4 pages

Journal-ref: Phys.Rev.Lett.95:141302,2005

Subjects: Astrophysics (astro-ph); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[707] arXiv:astro-ph/0503707 [pdf, other]

Title: Extranuclear X-ray Emission in the Edge-on Seyfert Galaxy NGC 2992

Edward J. M. Colbert (JHU), David K. Strickland (JHU), Sylvain Veilleux (UMD), Kimberly A. Weaver (NASA/GSFC)

Comments: 34 pages AASTEX, 9 (low-res) PS figures, ApJ, in press. For full-resolution postscript file, visit this http URL

Journal-ref: Astrophys.J. 628 (2005) 113-128

Subjects: Astrophysics (astro-ph)

[708] arXiv:astro-ph/0503708 [pdf, other]

Title: Present and Future Astrometric Study of Halo Substructure

Steven R. Majewski, Allyson A. Polak, David R. Law, Helio J. Rocha-Pinto

Comments: Presented at "Astrometry in the Era of the Next Generation of Large Telescopes", October 18-20, 2004, Lowell Observatory. To appear in Astronomical Society of the Pacific Conference series volume of same name, edited by K. Seidelmann & A. Monet

Subjects: Astrophysics (astro-ph)

[709] arXiv:astro-ph/0503709 [pdf, other]

Title: Effects of Cosmological Magnetic Helicity on the Cosmic Microwave Background

Tina Kahniashvili (1,2), Bharat Ratra (1); ((1) Kansas State University (USA), (2) Center for Plasma Astrophysics (Georgia))

Comments: 13 pages, submited to Phys. Rev. D

Journal-ref: Phys.Rev. D71 (2005) 103006

Subjects: Astrophysics (astro-ph)

[710] arXiv:astro-ph/0503710 [pdf, other]

Title: The role of resonances in barred galaxies

Daniel Ceverino, Anatoly Klypin (NMSU)

Comments: This paper contains the figures presented in the conference: "Dynamics of Galaxies: Baryons and Dark Matter'' (Las Vegas, NV, March 2005). The full talk is available in this http URL

Subjects: Astrophysics (astro-ph)

[711] arXiv:astro-ph/0503711 [pdf, other]

Title: High excitation ISM and gas

E. Peeters, N.L. Martin-Hernandez, N.J. Rodriguez-Fernandez, A.G.G.M. Tielens

Comments: To be publised in the review book : "ISO science legacy - a compact review of ISO major achievements"

Journal-ref: Space Science Reviews 2005

Subjects: Astrophysics (astro-ph)

[712] arXiv:astro-ph/0503712 [pdf, other]

Title: Absorption of dark matter by a supermassive black hole at the Galactic center: role of boundary conditions

M.I.Zelnikov, E.A.Vasiliev

Comments: 5 pages

Journal-ref: JETP Lett. 81 (2005) 85-89; Pisma Zh.Eksp.Teor.Fiz. 81 (2005) 115-119

Subjects: Astrophysics (astro-ph)

[713] arXiv:astro-ph/0503713 [pdf, other]

Title: The C4 Clustering Algorithm: Clusters of Galaxies in the Sloan Digital Sky Survey

Christopher J. Miller (CTIO/NOAO), Robert Nichol, Dan Reichart, Risa Wechsler, August Evrard, James Annis, Timothy McKay, Neta Bahcall, Mariangela Bernardi, Hans Boehringer, Andrew Connolly, Tomo Goto, Alexie Kniazev, Donald Lamb, Marc Postman, Donald Schneider, Ravi Sheth, Wolfgang Voges

Comments: 32 pages of figures and text accepted in AJ. Electronic version with additional tables, links, and figures is available at this http URL

Journal-ref: Astron.J.130:968,2005

Subjects: Astrophysics (astro-ph)

[714] arXiv:astro-ph/0503714 [pdf, other]

Title: Detection of anomalous microwave emission in the Perseus molecular cloud with the COSMOSOMAS experiment

R. A. Watson (1 and 2), R. Rebolo (2), J. A. Rubino-Martin (2), S. Hildebrandt (2), C. M. Gutierrez (2), S. Fernandez-Cerezo (2), R. J. Hoyland (2), E. S. Battistelli (2) ((1) JBO, Manchester (2) IAC, Tenerife)

Comments: 5 pages, 2 postscript figures, accepted ApJ Lett

Journal-ref: Astrophys.J. 624 (2005) L89-L92

Subjects: Astrophysics (astro-ph)

[715] arXiv:astro-ph/0503715 [pdf, other]

Title: Late time failure of Friedmann equation

Alessio Notari

Comments: 7 pages, 2 figures. Replaced version contains new sections with discussions and an explicit computation. Some parts rewritten and references this http URL to PRD

Journal-ref: Mod.Phys.Lett.A21:2997-3001,2006

Subjects: Astrophysics (astro-ph); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[716] arXiv:cond-mat/0503604 (cross-list from cond-mat.stat-mech) [pdf, other]

Title: The microcanonical thermodynamics of finite systems: The microscopic origin of condensation and phase separations; and the conditions for heat flow from lower to higher temperatures

D.H.E.Gross, J.F.Kenney

Comments: 23 pages, 2 figures, Accepted for publication in the Journal of Chemical Physics

Journal-ref: J.Chem.Phys. 122 (2005) 224111

Subjects: Statistical Mechanics (cond-mat.stat-mech); Astrophysics (astro-ph); Nuclear Theory (nucl-th); Atomic and Molecular Clusters (physics.atm-clus)

[717] arXiv:gr-qc/0503005 (cross-list from gr-qc) [pdf, other]

Title: Dark energy, wormholes, and the Big Rip

Valerio Faraoni, Werner Israel

Comments: 15 pages, LaTeX, to appear in Phys. Rev. D

Journal-ref: Phys.Rev. D71 (2005) 064017

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[718] arXiv:gr-qc/0503006 (cross-list from gr-qc) [pdf, other]

Title: Primordial magnetic seed field amplification by gravitational waves

Gerold Betschart, Caroline Zunckel, Peter Dunsby, Mattias Marklund

Comments: Matches published version

Journal-ref: Phys.Rev. D72 (2005) 123514

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[719] arXiv:gr-qc/0503012 (cross-list from gr-qc) [pdf, other]

Title: Detectability of f-mode Unstable Neutron Stars by the Schenberg Spherical Antenna

J. C. N. de Araujo, O. D. Miranda, O. D. Aguiar

Comments: 7 pages, 3 figures; Classical and Quantum Gravity (in press)

Journal-ref: Class.Quant.Grav. 22 (2005) S471-S478

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[720] arXiv:gr-qc/0503015 (cross-list from gr-qc) [pdf, other]

Title: Slowly rotating proto strange stars in Quark mass density- and temperature- dependent model

Jianyong Shen, Yun Zhang, Bin Wang, Ru-Keng Su

Comments: Latex file, 13 figures, accepted for publication in Inter. J. Mod. Phys. A

Journal-ref: Int.J.Mod.Phys. A20 (2005) 7547-7566

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th); Nuclear Theory (nucl-th)

[721] arXiv:gr-qc/0503016 (cross-list from gr-qc) [pdf, other]

Title: Gravitational-Wave Emission from Rotating Gravitational Collapse in three Dimensions

L. Baiotti, I. Hawke, L. Rezzolla, E. Schnetter

Comments: 4 pages, Phys. Rev. Lett., in press

Journal-ref: Phys.Rev.Lett. 94 (2005) 131101

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[722] arXiv:gr-qc/0503017 (cross-list from gr-qc) [pdf, other]

Title: Horizon crossing and inflation with large \eta

William H. Kinney (Univ. at Buffalo, SUNY)

Comments: 12 pages, 1 figure, RevTeX (V3: version to appear in PRD)

Journal-ref: Phys.Rev. D72 (2005) 023515

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[723] arXiv:gr-qc/0503019 (cross-list from gr-qc) [pdf, other]

Title: Fermion absorption cross section of a Schwarzschild black hole

Chris Doran, Anthony Lasenby, Sam Dolan, Ian Hinder

Comments: 11 pages, 3 figures

Journal-ref: Phys.Rev. D71 (2005) 124020

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[724] arXiv:gr-qc/0503020 (cross-list from gr-qc) [pdf, other]

Title: The Early Universe in Loop Quantum Cosmology

Martin Bojowald

Comments: 10 pages, 3 figures, plenary talk at VI Mexican School on Gravitation and Mathematical Physics, Nov 21-27, 2004

Journal-ref: J.Phys.Conf.Ser. 24 (2005) 77-86

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[725] arXiv:gr-qc/0503033 (cross-list from gr-qc) [pdf, other]

Title: Cosmological significance of one-loop effective gravity

D. Espriu, T. Multamaki, E. C. Vagenas

Comments: 8 pages (REVTeX)

Journal-ref: Phys.Lett. B628 (2005) 197-205

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[726] arXiv:gr-qc/0503037 (cross-list from gr-qc) [pdf, other]

Title: Friedmann cosmology with decaying vacuum density

H. A. Borges, S. Carneiro

Comments: Accepted for publication in General Relativity and Gravitation

Journal-ref: Gen.Rel.Grav.37:1385-1394,2005

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[727] arXiv:gr-qc/0503041 (cross-list from gr-qc) [pdf, other]

Title: A black hole mass threshold from non-singular quantum gravitational collapse

Martin Bojowald, Rituparno Goswami, Roy Maartens, Parampreet Singh

Comments: Minor changes to match published version in Physical Review Letters

Journal-ref: Phys.Rev.Lett. 95 (2005) 091302

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[728] arXiv:gr-qc/0503042 (cross-list from gr-qc) [pdf, other]

Title: Primordial magnetic seed field amplification by gravitational waves: comment on gr-qc/0503006

Christos G. Tsagas

Comments: Revised version, to appear in PRD

Journal-ref: Phys.Rev.D75:087901,2007

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[729] arXiv:gr-qc/0503045 (cross-list from gr-qc) [pdf, other]

Title: Noncompact KK theory of gravity: stochastic treatment for a nonperturbative inflaton field in a de Sitter expansion

Jose Edgar Madriz Aguilar (IFM, UMSNH), Mauricio Bellini (Mar del Plata University & CONICET)

Comments: version to be published in Phys. Lett. B

Journal-ref: Phys.Lett.B619:208-218,2005

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[730] arXiv:gr-qc/0503051 (cross-list from gr-qc) [pdf, other]

Title: Universally Coupled Massive Gravity

J. Brian Pitts, W. C. Schieve

Comments: Introduction notes resemblance between Einstein's discovery process and later field/spin 2 project; matches journal version

Journal-ref: Theor.Math.Phys.151:700-717,2007

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[731] arXiv:gr-qc/0503053 (cross-list from gr-qc) [pdf, other]

Title: Quantum character of black holes

Adam D. Helfer

Comments: 17 pages, 5 figures. Expanded treatment of the material in the 2004 Gravity Research Foundation essay

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[732] arXiv:gr-qc/0503058 (cross-list from gr-qc) [pdf, other]

Title: Black Strings in Our World

Hiroyuki Nakano, Ken-ichi Nakao, Masahide Yamaguchi

Comments: 11pages, no figure

Journal-ref: Phys.Rev. D71 (2005) 124013

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Phenomenology (hep-ph)

[733] arXiv:gr-qc/0503060 (cross-list from gr-qc) [pdf, other]

Title: On three quantization methods for particle on hyperboloid

Jean-Pierre Gazeau, Marc Lachieze-Rey, Wlodzimierz Piechocki

Comments: 22 pages, no figures, revtex

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th); Quantum Physics (quant-ph)

[734] arXiv:gr-qc/0503064 (cross-list from gr-qc) [pdf, other]

Title: Numerical Solutions of Inflating Higher Dimensional Global Defects

Satsuki Shimono, Takeshi Chiba

Comments: 6 pages, 7 figures, ReVTeX4, Accepted for publication in PRD

Journal-ref: Phys.Rev. D71 (2005) 084002

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[735] arXiv:gr-qc/0503065 (cross-list from gr-qc) [pdf, other]

Title: On Energy Conditions and Stability in Effective Loop Quantum Cosmology

Golam Mortuza Hossain

Comments: 29 pages, revtex4; few clarifications, references added, to appear in CQG

Journal-ref: Class.Quant.Grav.22:2653-2670,2005

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[736] arXiv:gr-qc/0503066 (cross-list from gr-qc) [pdf, other]

Title: A Michelson interferometer in the field of a plane gravitational wave

Nikodem J. Poplawski

Comments: 13 pages, 2 figures; published version

Journal-ref: J.Math.Phys.47:072501,2006

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); Mathematical Physics (math-ph)

[737] arXiv:gr-qc/0503069 (cross-list from gr-qc) [pdf, other]

Title: General covariance and the objectivity of space-time point-events

L.Lusanna (INFN, Firenze), M.Pauri (Parma Univ.)

Comments: revtex, 23 pages

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[738] arXiv:gr-qc/0503071 (cross-list from gr-qc) [pdf, other]

Title: Black hole head-on collisions and gravitational waves with fixed mesh-refinement and dynamic singularity excision

U.Sperhake (1), B.Kelly (1 and 2), P.Laguna (1), K.L.Smith (1), E.Schnetter (3) ((1) PSU, (2) UTB, (3) AEI)

Comments: Revised version, 1 figure added, accepted for publication in Phys.Rev.D, 15 pages, 10 figures, revtex 4.0

Journal-ref: Phys.Rev.D71:124042,2005

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[739] arXiv:gr-qc/0503072 (cross-list from gr-qc) [pdf, other]

Title: Conformally symmetric vacuum solutions of the gravitational field equations in the brane-world models

T. Harko, M. K. Mak

Comments: 15 pages, 5 figures, to appear in Annals of Physics

Journal-ref: Ann.Phys.319:471-492,2005

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[740] arXiv:gr-qc/0503073 (cross-list from gr-qc) [pdf, other]

Title: Does the Holographic Principle determine the Gravitational Interaction?

F. Canfora, G. Vilasi

Comments: 12 pages, no figures, added references

Journal-ref: Phys.Lett. B614 (2005) 131-139

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[741] arXiv:gr-qc/0503074 (cross-list from gr-qc) [pdf, other]

Title: Indirect Visibility of Gravitational Waves in Magnetohydrodynamic Plasmas

Joachim Moortgat, Jan Kuijpers

Comments: 6 pages; 8 eps figures; Proceedings of the XXII Texas Symposium on Relativistic Astrophysics, Stanford University, Palo Alto, USA, December 13-17 2004. PSN 1230

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[742] arXiv:gr-qc/0503076 (cross-list from gr-qc) [pdf, other]

Title: Non-minimal coupling for the gravitational and electromagnetic fields: A general system of equations

Alexander B. Balakin, José P. S. Lemos

Comments: 15 pages

Journal-ref: Class.Quant.Grav. 22 (2005) 1867-1880

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[743] arXiv:gr-qc/0503085 (cross-list from gr-qc) [pdf, other]

Title: Variable Eddington Factor and Radiating Slowly Rotating Bodies in General Relativity

F. Aguirre, L. A. Nunez, T. Soldovieri

Comments: 37 pages, 11 figures. Same results, we hope better presented. Two last sections re-written

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[744] arXiv:gr-qc/0503091 (cross-list from gr-qc) [pdf, other]

Title: Space-time: emerging vs. existing

Yu. F. Pirogov

Comments: 5 pages, Report presented at The XXVII Intern. Workshop on Fundamental Problems of High Energy Physics and Field Theory, 23-25 June 2004, Protvino, Russia

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Phenomenology (hep-ph)

[745] arXiv:gr-qc/0503097 (cross-list from gr-qc) [pdf, other]

Title: Wormholes and Time Travel? Not Likely

Leonard Susskind

Comments: 5 pages, remark added about time delay in identification. Reference added

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[746] arXiv:gr-qc/0503099 (cross-list from gr-qc) [pdf, other]

Title: Viable inhomogeneous model universe without dark energy from primordial inflation

David L. Wiltshire

Comments: 4 pages, aastex, this http URL. v5: Complete overhaul of notation and presentation to improve clarity. Corrected volume factor increases age of universe

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

[747] arXiv:gr-qc/0503107 (cross-list from gr-qc) [pdf, other]

Title: Understanding Our Universe: Current Status and Open Issues

T. Padmanabhan

Comments: To appear in "100 Years of Relativity - Space-time Structure: Einstein and Beyond", this http URL (Editor), World Scientific (Singapore, 2005); 30 pages; 4 figures

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[748] arXiv:gr-qc/0503111 (cross-list from gr-qc) [pdf, other]

Title: The separate universe and the back reaction of long wavelength fluctuations

Yasusada Nambu

Comments: 10 pages. to be published in Phys. Rev. D

Journal-ref: Phys.Rev. D71 (2005) 084016

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)

[749] arXiv:gr-qc/0503113 (cross-list from gr-qc) [pdf, other]

Title: A 3+1 perspective on null hypersurfaces and isolated horizons

E. Gourgoulhon, J.L. Jaramillo (LUTH, CNRS / Observatoire de Paris)

Comments: numerous corrections, references added, 224 pages, 21 figures, Physics Reports, in press

Journal-ref: Phys.Rept.423:159-294,2006

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)

[750] arXiv:gr-qc/0503115 (cross-list from gr-qc) [pdf, other]

Title: Brane Formation and Cosmological Constraint on the Number of Extra Dimensions

Feng Luo, Hongya Liu

Comments: 11 pages, no figures. To appear in IJTP

Journal-ref: Int.J.Theor.Phys. 44 (2005) 1441-1450

Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph); High Energy Physics - Theory (hep-th)