Astrophysics

Authors and titles for January 2000

[501] arXiv:astro-ph/0001501 [pdf, other]

Title: Internal shock model for Microquasars

Christian R. Kaiser, Rashid Sunyaev, Henk C. Spruit (Max-Planck-Institut fuer Astrophysik, Garching)

Comments: 16 pages, uses A&A style, 5 ps-figures, accepted by A&A, minor changes to fit published version, small changes to figure 5

Journal-ref: Astron.Astrophys.356:975-988,2000

Subjects: Astrophysics (astro-ph)

[502] arXiv:astro-ph/0001502 [pdf, other]

Title: The radio luminosity of persistent X-ray binaries

R.P. Fender (Amsterdam), M.A. Hendry (Glasgow)

Comments: Accepted for publication in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 317 (2000) 1

Subjects: Astrophysics (astro-ph)

[503] arXiv:astro-ph/0001503 [pdf, other]

Title: A GPS-based method to model the plasma effects in VLBI observations

E. Ros (1,2), J.M. Marcaide (1), J.C. Guirado (1), E. Sardon (3), I.I. Shapiro (4) ((1) U. Valencia, Spain, (2) MPIfR Bonn, Germany, (3) Neustrelitz, Germany, (4) CfA, MA, US)

Comments: Accepted for publication in Astronomy & Astrophysics, Main Journal, 6 pages, 4 figures

Journal-ref: Astronomy & Astrophysics, 356, 357-362 (2000)

Subjects: Astrophysics (astro-ph)

[504] arXiv:astro-ph/0001504 [pdf, other]

Title: Detection of the first X-ray selected large AGN group

F. Tesch, D. Engels (Hamburger Sternwarte)

Comments: 6 pages, 4 figures, accepted for publication in MNRAS

Subjects: Astrophysics (astro-ph)

[505] arXiv:astro-ph/0001505 [pdf, other]

Title: ROSAC: Studying the clustering properties of X-ray selected AGNs

F. Tesch (1), F. J. Carrera (2 and 3), D. Engels (1), J. Hu (4), C. Ledoux (5), A. Ugryumov (6), D. Valls-Gabaud (7), W. Voges (8), J. Wei (4) ((1) Hamburger Sternwarte, (2) Mullard Space Science Laboratory UCL, (3) Instituto de Fisica de Cantabria, CSIC-UC, (4) Beijing Astronomical Observatory, (5) Observatoire de Strasbourg, (6) Special Astrophysical Observatory RAS, (7) Observatoire Midi-Pyrenees, Toulouse, (8) MPE Garching)

Comments: 2 pages. To appear in 'Large scale structure in the X-Ray Universe', Santorini

Subjects: Astrophysics (astro-ph)

[506] arXiv:astro-ph/0001506 [pdf, other]

Title: The Distribution of Stellar Orbits in the Giant Elliptical Galaxy NGC 2320

Nicolas Cretton, Hans-Walter Rix, Tim de Zeeuw

Comments: 26 pages, 13 figures, accepted for publication in the Astrophysical Journal

Subjects: Astrophysics (astro-ph)

[507] arXiv:astro-ph/0001507 [pdf, other]

Title: ISO observational campaign of the BL Lac object PKS 2155-304

E. Bertone, G. Tagliaferri, G. Ghisellini (Obs. Brera, Milan), A. Treves (Insubria Univ.), P. Barr (ESA, Estec), A. Celotti, M. Chiaberge (SISSA, Trieste), L. Maraschi (Obs. Brera, Milan)

Comments: 11 pages, 5 figures, A&A, in press

Subjects: Astrophysics (astro-ph)

[508] arXiv:astro-ph/0001508 [pdf, other]

Title: The Near-Ultraviolet Continuum of Late-Type Stars

Carlos Allende Prieto, David L. Lambert (McDonald Observatory and Department of Astronomy, The University of Texas at Austin)

Comments: 22 pages, 8 figures; an AASTeX v5.0 LaTeX2e document; uses this http URL (included); to appear in the Astronomical Journal

Subjects: Astrophysics (astro-ph)

[509] arXiv:astro-ph/0001509 [pdf, other]

Title: Particle Acceleration at Ultra-Relativistic Shocks and the Spectra of Relativistic Fireballs

Yves A. Gallant, Abraham Achterberg, John G. Kirk, Axel W. Guthmann

Comments: To appear in Proceedings of the 5th Huntsville Gamma-Ray Burst Symposium. LaTeX, 6 pages, 2 figures, uses this http URL and epsfig

Subjects: Astrophysics (astro-ph)

[510] arXiv:astro-ph/0001510 [pdf, other]

Title: Influence of the Tachocline on Solar Evolution

A. S. Brun, J. P. Zahn

Comments: to appear in Annals of the New York Academy of Sciences, vol 898. Postscript file, 9 pages and 5 figures New Email Address for A. S. Brun: sabrun@solarz.this http URL

Subjects: Astrophysics (astro-ph)

[511] arXiv:astro-ph/0001511 [pdf, other]

Title: First Dark Matter Limits from a Large-Mass, Low-Background Superheated Droplet Detector

J.I. Collar, J. Puibasset, T.A. Girard, D. Limagne, H.S. Miley, G. Waysand

Comments: Final version, Phys. Rev. Lett. (in press)

Journal-ref: Phys.Rev.Lett.85:3083-3086,2000

Subjects: Astrophysics (astro-ph); Condensed Matter (cond-mat); High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); Nuclear Experiment (nucl-ex); Instrumentation and Detectors (physics.ins-det)

[512] arXiv:astro-ph/0001512 [pdf, other]

Title: The Local Interstellar Medium in Puppis-Vela

A. Cha, M. Sahu, H.W. Moos, A. Blaauw

Comments: 18 pages plus 7 figures and 9 tables. To appear in ApJS

Journal-ref: Astrophys.J.Suppl. 129 (2000) 281

Subjects: Astrophysics (astro-ph)

[513] arXiv:astro-ph/0001513 [pdf, other]

Title: Strong and weak lensing analysis of cluster Abell 2219 based on optical and near infrared data

J. Bezecourt, H. Hoekstra, M.E. Gray, H.M. AbdelSalam, K. Kuijken, R.S. Ellis

Comments: 12 pages, 19 figures, submitted to Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[514] arXiv:astro-ph/0001514 [pdf, other]

Title: Dynamics of Warm-Absorbing Gas in Seyfert Galaxies: NGC 5548

Mark Bottorff, Kirk Korista, Isaac Shlosman

Comments: Latex, 8 postscript figures. Astrophysical Journal, 536, June 10, in press

Subjects: Astrophysics (astro-ph)

[515] arXiv:astro-ph/0001515 [pdf, other]

Title: Toy model of obscurational variability in active galactic nuclei

A. Abrassart (Observatoire de Meudon), B. Czerny (Copernicus Astronomical Center)

Comments: accepted for publication in A&A

Subjects: Astrophysics (astro-ph)

[516] arXiv:astro-ph/0001516 [pdf, other]

Title: Physics of Extremely High Energy Cosmic Rays

Xavier Bertou, Murat Boratav, Antoine Letessier-Selvon (LPNHE/IN2P3, University of Paris 6&7)

Comments: 43 pages, 12 figures, submitted to International Journal of Modern Physics A

Journal-ref: Int.J.Mod.Phys.A15:2181-2224,2000

Subjects: Astrophysics (astro-ph)

[517] arXiv:astro-ph/0001517 [pdf, other]

Title: A Young Globular Cluster in the Galaxy NGC 6946

B.G. Elmegreen (1), Y.N. Efremov (2), S. Larsen (3) ((1) IBM Watson NY (2) MSU, Moscow (3) Copenhagen Univ. Astronomical Obs.)

Comments: 20 pages, 7 figures, accepted for Astrophysical Journal Vol 535, June 1 2000

Subjects: Astrophysics (astro-ph)

[518] arXiv:astro-ph/0001518 [pdf, other]

Title: Molecules as Tracers of PN Structure

P. J. Huggins

Comments: To appear in ``Asymmetrical Planetary Nebulae II: from Origins to Microstructures'', ASP Conference Series, Vol. 199, 2000; J.H. Kastner, N. Soker, and S.A. Rappaport, eds

Subjects: Astrophysics (astro-ph)

[519] arXiv:astro-ph/0001519 [pdf, other]

Title: Early spectroscopic observations of Nova (V1494) Aquilae 1999 No.2

L.L. Kiss, J.R. Thomson

Comments: 5 pages, 4 figures, accepted for publication in Astronomy and Astrophysics Letters

Subjects: Astrophysics (astro-ph)

[520] arXiv:astro-ph/0001520 [pdf, other]

Title: The Fornax Spectroscopic Survey I. Survey Strategy and Preliminary Results on the Redshift Distribution of a Complete Sample of Stars and Galaxies

M.J. Drinkwater (1), S. Phillipps (2), J.B. Jones (2), M.D. Gregg (3), J.H. Deady (2), J.I. Davies (4), Q.A. Parker (5), E.M. Sadler (6), R.M. Smith (4) ((1) University of Melbourne, (2) University of Bristol, (3) Lawrence Livermore National Laboratory, (4) University of Wales Cardiff, (5) Royal Observatory Edinburgh, (6) University of Sydney)

Comments: LaTeX format; uses this http URL (included). Accepted for publication in Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[521] arXiv:astro-ph/0001521 [pdf, other]

Title: Evolution of the Blue Luminosity-to-Baryon Mass Ratio of Clusters of Galaxies

Kazuhiro Shimasaku (University of Tokyo)

Comments: 10 pages, LaTeX (this http URL, this http URL, this http URL), 10 PostScript figures, accepted for publication in PASJ

Subjects: Astrophysics (astro-ph)

[522] arXiv:astro-ph/0001522 [pdf, other]

Title: Superwind model of extended Lyman alpha emitters at high redshift

Yoshiaki Taniguchi, Yasuhiro Shioya

Comments: 16 pages, AASLaTeX, To appear in ApJ Letters

Subjects: Astrophysics (astro-ph)

[523] arXiv:astro-ph/0001523 [pdf, other]

Title: WSRT 1.4 GHz Observations of the Hubble Deep Field

M.A. Garrett (JIVE), G. de Bruyn (NFRA), W. Baan (NFRA), R.T. Schilizzi (JIVE)

Comments: 2 pages, 1 figure, to appear in "The Universe at Low Radio Frequencies", IAU Symposium 199. For colour figures, see this http URL

Subjects: Astrophysics (astro-ph)

[524] arXiv:astro-ph/0001524 [pdf, other]

Title: Steady dynamos in finite domains: an integral equation approach

Frank Stefani, Gunter Gerbeth, Karl-Heinz Rädler

Comments: 18 pages, submitted to Astron. Nachr

Journal-ref: Astron.Nachr.321:65-73,2000

Subjects: Astrophysics (astro-ph)

[525] arXiv:astro-ph/0001525 [pdf, other]

Title: Infrared spectroscopy of cataclysmic variables: III. Dwarf novae below the period gap and novalike variables

V. S. Dhillon, S. P. Littlefair, S. B. Howell, D. R. Ciardi, M. K. Harrop-Allin, T. R. Marsh

Comments: 13 pages, 5 figures, to appear in MNRAS

Subjects: Astrophysics (astro-ph)

[526] arXiv:astro-ph/0001526 [pdf, other]

Title: On the Existence of Differences in Luminosity between Horizontal Branch Stars in Globular Clusters and in the Field

Eugenio Carretta (1), Raffaele Gratton (1), Gisella Clementini (2) ((1) Osservatorio Astronomico di Padova, (2) Osservatorio Astronomico di Bologna)

Comments: 8 pages, 5 encapsulated figures, LaTeX, uses this http URL. Accepted by MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 316 (2000) 721

Subjects: Astrophysics (astro-ph)

[527] arXiv:astro-ph/0001527 [pdf, other]

Title: Structure and Evolution of the Envelopes of Deeply Embedded Massive Young Stars

Floris F. S. van der Tak, Ewine F. van Dishoeck, Neal J. Evans, Geoffrey A. Blake

Comments: To be published in The Astrophysical Journal. 54 pages including 14 figures Revised version with references added

Journal-ref: Astrophys.J.537:283-303,2000

Subjects: Astrophysics (astro-ph)

[528] arXiv:astro-ph/0001528 [pdf, other]

Title: A broadband X-ray view of NGC4945

M.Guainazzi (1,2), G.Matt (3), W.N.Brandt (4), L.A.Antonelli (5), P.Barr (1), L.Bassani (6) ((1) Astrophyisics Division, SSD of ESA, Noordwijk, NL; (2) XMM SOC, VILSPA, ESA, Villafranca del Castillo, E; (3) Universita' degli Studi "Roma 3", I; (4) Pennsylvania State University, USA; (5) Osservatorio di Roma, Monteporzio Catone, I; (6) ITESRE/CNR, Bologna, I)

Comments: 13 Latex pages, 15 figures, Accepted for publication in Astronomy & Astrophysics

Subjects: Astrophysics (astro-ph)

[529] arXiv:astro-ph/0001529 [pdf, other]

Title: The Properties of Young Clusters in M82

L.J. Smith, J.S. Gallagher

Comments: 6 pages including 3 figures. To be published in "Massive Stellar Clusters", ASP Conf. Ser., eds. A. Lancon and C.M. Boily

Subjects: Astrophysics (astro-ph)

[530] arXiv:astro-ph/0001530 [pdf, other]

Title: X-ray/optical observations of XTE J0421+560/CI Cam in quiescence

M. Orlandini (1), A.N. Parmar (2), F. Frontera (1,3), N. Masetti (1), D. Dal Fiume (1), A. Orr (4), A. Piccioni (5), G. Raimondo (6), A. Santangelo (7), G. Valentini (6), T. Belloni (8) ((1) TeSRE/CNR Bologna, Italy (2) SSD/ESA ESTEC Noordwijk, NL (3) Physics Dept, Ferrara Univ, Italy (4) IAAT Tubingen, Germany (5) Physics Dept, Bologna Univ, Italy (6) OAT Teramo, Italy (7) IFCAI/CNR Palermo, Italy (8) OAB Brera, Italy)

Comments: 8 pages, 3 figures. Accepted for publication in Astronomy & Astrophysics, Main Journal

Subjects: Astrophysics (astro-ph)

[531] arXiv:astro-ph/0001531 [pdf, other]

Title: Super star clusters as probes of massive star evolution and the IMF at extreme metallicities

Daniel Schaerer (OMP, Toulouse), Natalia G. Guseva, Yuri I. Izotov (Main Astronomical Observatory, Kiev)

Comments: to appear in "Massive Stellar Clusters", Eds. A. Lancon, C.M. Boily, ASP Conf. Series, in press. 7 pages, including 5 figures. Related preprints also available at this http URL

Subjects: Astrophysics (astro-ph)

[532] arXiv:astro-ph/0001532 [pdf, other]

Title: Magnetic Confinement, MHD Waves, and Smooth Line Profiles in AGN

M. C. Bottorff, G. J. Ferland

Comments: to appear in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 316 (2000) 103

Subjects: Astrophysics (astro-ph)

[533] arXiv:astro-ph/0001533 [pdf, other]

Title: A time-delay determination from VLA light curves of the CLASS gravitational lens B1600+434

L.V.E. Koopmans (1), A.G. de Bruyn (2,1), E. Xanthopoulos (3), C.D. Fassnacht (4) ((1) Kapteyn Astronomical Institute, (2) NFRA, (3) NRAL/Jodrell Bank, (4) NRAO)

Comments: 14 pages, 6 figures, accepted for publication in Astronomy & Astrophysics (Figs 1 and 3 with degraded resolution)

Subjects: Astrophysics (astro-ph)

[534] arXiv:astro-ph/0001534 [pdf, other]

Title: The rise and fall of V4334 Sgr (Sakurai's Object)

H.W. Duerbeck, W. Liller, C. Sterken, S. Benetti, A.M. van Genderen, J. Arts, J. Kurk, M. Janson, T. Voskes, E. Brogt, T. Arentoft, A. van der Meer, R. Dijkstra

Comments: 27 pages, including 5 tables and 9 figures, LaTeX, accepted by the Astronomical Journal (scheduled for May, 2000)

Subjects: Astrophysics (astro-ph)

[535] arXiv:astro-ph/0001535 [pdf, other]

Title: The Evolution of He4 and LiBeB

Keith A. Olive

Comments: 11 pages, latex, 5 ps figures, summary of talk at IAU Symposium 198: The Light Elements and their Evolution, eds. L. da Silva, M. Spite, and J.R. de Medeiros

Subjects: Astrophysics (astro-ph)

[536] arXiv:astro-ph/0001536 [pdf, other]

Title: Chandra Observations of the Crab-like Supernova Remnant G21.5-0.9

Patrick Slane (CfA), Yang Chen (CfA/Nanjing), Norbert S. Schulz (MIT), Frederick Seward (CfA), John P. Hughes (Rutgers), Bryan M. Gaensler (MIT)

Comments: 4 pages, 2 figures, formatted with emulateapj, submitted to ApJL

Subjects: Astrophysics (astro-ph)

[537] arXiv:astro-ph/0001537 [pdf, other]

Title: The Equation of State of Neutron-Star Matter in Strong Magnetic Fields

A. Broderick, M. Prakash, J.M. Lattimer

Comments: 40 pages, 7 figures, accepted for publication in ApJ

Subjects: Astrophysics (astro-ph); Nuclear Theory (nucl-th)

[538] arXiv:astro-ph/0001538 [pdf, other]

Title: Quasar Candidate Multicolor Selection Technique: a different approach

E. Hatziminaoglou, G. Mathez, R. Pello

Comments: 10 pages, 11 figures, replaced with revised version, accepted for publication in Astron. Astroph

Subjects: Astrophysics (astro-ph)

[539] arXiv:astro-ph/0001539 [pdf, other]

Title: Linear and non-linear theory of a parametric instability of hydrodynamic warps in Keplerian discs

Charles F. Gammie (1,2,3), Jeremy Goodman (1,4), Gordon I. Ogilvie (1,5,6) ((1) Isaac Newton Institute, Cambridge, (2) CfA, Cambridge, MA, (3) University of Illinois, Urbana, (4) Peyton Hall, Princeton, (5) Institute of Astronomy, Cambridge, (6) Max-Planck-Institut fuer Astrophysik)

Comments: 14 pages, 6 figures, revised version with appendix added, to be published in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 318 (2000) 1005

Subjects: Astrophysics (astro-ph)

[540] arXiv:astro-ph/0001540 [pdf, other]

Title: The Number of Publications Used As A Metric of the NOAO WIYN Queue Experiment

P. Massey, M. Guerrieri, R. R. Joyce

Subjects: Astrophysics (astro-ph)

[541] arXiv:astro-ph/0001541 [pdf, other]

Title: ALTAI: Computational code for the simulations of TeV air showers as observed with the ground-based imaging atmospheric Cherenkov telescopes

A. Konopelko (Max-Planck-Institut fuer Kernphysik, Heidelberg), A. Plyasheshnikov (Altai State University, Russia)

Comments: 11 pages, 4 figures, Nuclear Instruments & Methods in Physics Research (Section A), in press

Journal-ref: Nucl.Instrum.Meth. A450 (2000) 419-429

Subjects: Astrophysics (astro-ph)

[542] arXiv:astro-ph/0001542 [pdf, other]

Title: Structure and Evolution of Circumstellar Disks Around Young Stars: New Views from ISO

Michael R. Meyer (Steward Observatory, The University of Arizona)Steven V.W. Beckwith (Space Telescope Science Institute)

Comments: To appear in "ISO Surveys of a Dusty Universe", eds. D. Lemke, M. Stickel, & K. Wilke (Heidelberg: Springer-Verlag), in press. 11 postscript pages

Subjects: Astrophysics (astro-ph)

[543] arXiv:astro-ph/0001543 [pdf, other]

Title: Accelerations of Water Masers in NGC4258

A. E. Bragg, L. J. Greenhill, J. M. Moran, C. Henkel

Comments: 40 pages, latex, uses aaspp4 style file, 10 figures. Accepted for publication in the Astrophysical Journal

Subjects: Astrophysics (astro-ph)

[544] arXiv:astro-ph/0001544 [pdf, other]

Title: Oscillation Waveforms and Amplitudes from Hot Spots on Neutron Stars

Nevin Weinberg (1), M. Coleman Miller (2), Donald Q. Lamb (1) ((1) University of Chicago, (2) University of Maryland at College Park)

Comments: 22 pages including 10 figures, submitted to The Astrophysical Journal on 31 January

Subjects: Astrophysics (astro-ph)

[545] arXiv:astro-ph/0001545 [pdf, other]

Title: The Distance to the Large Magellanic Cloud

Piotr Popowski (IGPP/LLNL)

Comments: less detailed and more review-style version of ApJ Letter (528, L9), to be published in the ASP Conference Series Vol. 203, 1999: ``The Impact of Large Scale Surveys on Pulsating Star Research'', L. Szabados and D. Kurtz, eds

Subjects: Astrophysics (astro-ph)

[546] arXiv:astro-ph/0001546 [pdf, other]

Title: Near-Infrared Classification Spectroscopy: J-Band Spectra of Fundamental MK Standards

Lloyd Wallace (Kitt Peak National Observatory, NOAO)Michael R. Meyer (Steward Observatory, The University of Arizona)Kenneth Hinkle (Kitt Peak National Observatory, NOAO)Suzan Edwards (Astronomy Department, Smith College)

Comments: Accepted for publication in the Astrophysical Journal. 17 pages including 4 tables, 10 figures in PNG format. Complete PostScript version at this http URL data at this http URL

Subjects: Astrophysics (astro-ph)

[547] arXiv:cond-mat/0001445 (cross-list from cond-mat.stat-mech) [pdf, other]

Title: Clustering data by inhomogeneous chaotic map lattices

L. Angelini, F. De Carlo, C. Marangi, M. Pellicoro, S. Stramaglia

Comments: 8 pages, 6 figures. Revised version accepted for publication on Physical Review Letters

Journal-ref: Physical Review Letters 85 (2000) 554

Subjects: Statistical Mechanics (cond-mat.stat-mech); Astrophysics (astro-ph); Chaotic Dynamics (nlin.CD); Data Analysis, Statistics and Probability (physics.data-an)

[548] arXiv:gr-qc/0001002 (cross-list from gr-qc) [pdf, other]

Title: Evolution of thin-wall configurations of texture matter

Konstantin G. Zloshchastiev

Comments: intermediate research on nature of dual-radiation matter; LaTeX, 12 pages, 1 figure and epsfig style file included; slightly shortened version was published in December issue of GRG

Journal-ref: Gen.Rel.Grav. 31 (1999) 1821-1836

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

[549] arXiv:gr-qc/0001011 (cross-list from gr-qc) [pdf, other]

Title: Attractive and Repulsive Gravity

Philip D. Mannheim (University of Connecticut)

Comments: RevTeX, 31 pages. Prepared for Foundations of Physics Festschrift in honor of Kurt Haller

Journal-ref: Found.Phys. 30 (2000) 709-746

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

[550] arXiv:gr-qc/0001015 (cross-list from gr-qc) [pdf, other]

Title: Dynamics of a string coupled to gravitational waves - Gravitational wave scattering by a Nambu-Goto straight string

Kouji Nakamura, Akihiro Ishibashi, Hideki Ishihara

Comments: Published in Physical Review D. Some explanations are changed to clarify our points

Journal-ref: Phys.Rev.D62:101502,2000

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