Astrophysics

Authors and titles for April 2000

[51] arXiv:astro-ph/0004051 [pdf, other]

Title: Quasars: a supermassive rotating toroidal black hole interpretation

Robin J. Spivey

Comments: 26 pages, 14 figs, various corrections and enhancements, final version

Journal-ref: Mon.Not.Roy.Astron.Soc.316:856-874,2000

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

[52] arXiv:astro-ph/0004052 [pdf, other]

Title: A Proton Synchrotron Blazar Model for Flaring in Markarian~501

A. Muecke, R.J. Protheroe (University of Adelaide, Adelaide, Australia)

Comments: 28 pages, 8 Figures, accepted for publication in this http URL

Journal-ref: Astropart.Phys.15:121-136,2001

Subjects: Astrophysics (astro-ph)

[53] arXiv:astro-ph/0004053 [pdf, other]

Title: XID: Cross-Association of ROSAT/Bright Source Catalog X-ray Sources with USNO A2 Optical Point Sources

Robert E. Rutledge, Robert J. Brunner, Thomas A. Prince, Carol Lonsdale (Caltech)

Comments: ms 38 pages; separate appendix (contains catalog) 184 pages. ApJ Supplements, accepted (Sept 2000); Appendix is in Landscape format; use dvips -t landscape this http URL

Journal-ref: Astrophys.J.Suppl. 131 (2000) 335-354

Subjects: Astrophysics (astro-ph)

[54] arXiv:astro-ph/0004054 [pdf, other]

Title: Confusion errors in astrometry and counterpart association

David W. Hogg (IAS)

Comments: submitted to AJ 2000 March 14

Subjects: Astrophysics (astro-ph)

[55] arXiv:astro-ph/0004055 [pdf, other]

Title: On the Two-Phase Structure of Protogalactic Clouds

D. N. C. Lin, S. D. Murray

Comments: To appear in the ApJ. Gzip compressed tar file. 42 pages, incl. 15 figures

Subjects: Astrophysics (astro-ph)

[56] arXiv:astro-ph/0004057 [pdf, other]

Title: The Near Infrared and Multiwavelength Afterglow of GRB 000301c

James E. Rhoads, Andrew S. Fruchter

Comments: Accepted to The Astrophysical Journal. 24 pages, 4 figures, 3 tables; uses AASTeX 5 macros. This version includes a new figure (R-K' color vs. time), a better sampled R band light curve, and more extensive discussion of the optical data and error analysis

Journal-ref: Astrophysical Journal, v. 546, p. 117 (2001)

Subjects: Astrophysics (astro-ph)

[57] arXiv:astro-ph/0004058 [pdf, other]

Title: Failed Oort Clouds and Planetary Migration

Brad M. S. Hansen (Princeton University)

Comments: TeX, 3 pages plus 3 postscript figures. submitted to Ap. J. Letters

Subjects: Astrophysics (astro-ph)

[58] arXiv:astro-ph/0004059 [pdf, other]

Title: Astrophysical Reaction Rates From Statistical Model Calculations

T. Rauscher, F.-K. Thielemann

Comments: 22 pages of text and 1 table; accepted by Atomic Data Nuclear Data Tables; a preprint is also available from this http URL

Journal-ref: At.DataNucl.DataTabl.75:1,2000

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

[59] arXiv:astro-ph/0004060 [pdf, other]

Title: Radiation-Hydrodynamical Collapse of Pregalactic Clouds in the Ultraviolet Background

T. Kitayama, Y. Tajiri, M. Umemura, H. Susa, S. Ikeuchi

Comments: 11 pages, 6 figures. Accepted for publication in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 315 (2000) L1

Subjects: Astrophysics (astro-ph)

[60] arXiv:astro-ph/0004061 [pdf, other]

Title: Multifrequency Observations of the Virgo Blazars 3C 273 and 3C 279 in CGRO Cycle 8

W. Collmar, S. Benlloch, J.E. Grove, R.C. Hartman, W.A. Heindl, A. Kraus, H. Teraesranta, M. Villata, K. Bennett, H. Bloemen, W.N. Johnson, T.P. Krichbaum, C.M. Raiteri, J. Ryan, G. Sobrito, V. Schoenfelder, O.R. Williams, J. Wilms

Comments: 5 pages including 3 figures, latex2e, to appear in: 'Proc. of the 5th Compton Symposium', AIP, in press

Subjects: Astrophysics (astro-ph)

[61] arXiv:astro-ph/0004062 [pdf, other]

Title: Ferromagnetism of quark liquid and magnetars

Toshitaka Tatsumi

Comments: 9 pages, 5 figures

Subjects: Astrophysics (astro-ph)

[62] arXiv:astro-ph/0004063 [pdf, other]

Title: Supernova type Ia luminosities, their dependence on second parameters, and the value of H_0

B. R. Parodi, A. Saha, A. Sandage, G. A. Tammann

Comments: 42 pages, including 9 figures; submitted to ApJ

Journal-ref: Astrophys.J.540:634-651,1989

Subjects: Astrophysics (astro-ph)

[63] arXiv:astro-ph/0004064 [pdf, other]

Title: A supermassive boson star at the galactic center?

Diego F. Torres, S. Capozziello, G. Lambiase

Comments: 22 double column pages, 10 separate eps figures

Journal-ref: Phys.Rev. D62 (2000) 104012

Subjects: Astrophysics (astro-ph)

[64] arXiv:astro-ph/0004065 [pdf, other]

Title: New challenges for Adaptive Optics: Extremely Large Telescopes

M. Le Louarn, N. Hubin, M. Sarazin, A. Tokovinin

Comments: 11 pages, 9 figures, 4 tables. Accepted for publication in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 317 (2000) 535

Subjects: Astrophysics (astro-ph)

[65] arXiv:astro-ph/0004066 [pdf, other]

Title: Global Nonradial Instabilities of Dynamically Collapsing Gas Spheres

Dong Lai (Cornell)

Comments: 28 pages including 7 ps figures; Minor changes in the discussion; To be published in ApJ (V.540, Sept.10, 2000 issue)

Subjects: Astrophysics (astro-ph)

[66] arXiv:astro-ph/0004067 [pdf, other]

Title: High magnetic field pulsars and magnetars: a unified picture

Bing Zhang (1, 2), Alice K. Harding (1) ((1) Laboratory of High Energy Astrophysics, NASA/Goddard Space Flight Center, (2) National Research Council research associate)

Comments: 5 pages, emulateapj style, accepted for publication in the ApJ Letters

Journal-ref: Astrophys.J. 535 (2000) L51-L54

Subjects: Astrophysics (astro-ph)

[67] arXiv:astro-ph/0004068 [pdf, other]

Title: A deep X-ray observation of NGC 4258 and its surrounding field

C.S.Reynolds, M.A.Nowak, P.R.Maloney

Comments: 11 pages, 9 postscript figures. Accepted for publication in ApJ

Subjects: Astrophysics (astro-ph)

[68] arXiv:astro-ph/0004069 [pdf, other]

Title: Analytic Time Delays and H_0 Estimates for Gravitational Lenses

H. J. Witt (AIP Potsdam), S. Mao (Jodrell Bank), C. R. Keeton (Arizona)

Comments: 16 pages with 2 embedded figures; submitted to ApJ

Subjects: Astrophysics (astro-ph)

[69] arXiv:astro-ph/0004070 [pdf, other]

Title: Stochastic Coagulation and the Timescale for Runaway Growth

Leonid Malyshkin, Jeremy Goodman

Comments: 16 pages, 4 figures, 1 appendix

Journal-ref: ICARUS, 2001, v. 150, p. 314-322

Subjects: Astrophysics (astro-ph)

[70] arXiv:astro-ph/0004071 [pdf, other]

Title: Unbiased reconstruction of the mass function using microlensing survey data

C. Alard

Comments: 8 pages, 4 Figure, submitted to MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 320 (2001) 341

Subjects: Astrophysics (astro-ph)

[71] arXiv:astro-ph/0004072 [pdf, other]

Title: Star Formation and Galaxy Environment

H.K.C. Yee (Univ. of Toronto)

Comments: 6 pages. To appear in the proceedings of the 3rd G. Haro Conference: Cosmic Evolution and Galaxy formation

Subjects: Astrophysics (astro-ph)

[72] arXiv:astro-ph/0004073 [pdf, other]

Title: The UV spectrum of nebulae

F. Zagury

Comments: Published version. Deeply modified from previous version. 17 pages, 5 figures

Journal-ref: NewA., 2000, 5, 211

Subjects: Astrophysics (astro-ph)

[73] arXiv:astro-ph/0004074 [pdf, other]

Title: The KPNO International Spectroscopic Survey. I. Description of the Survey

J. J. Salzer, C. Gronwall, V. A. Lipovetsky, A. Kniazev, J. W. Moody, T. A. Boroson, T. X. Thuan, Y. I. Izotov, J. L. Herrero, L. M. Frattare

Comments: 19 pages, 8 figures, A.J. in press

Subjects: Astrophysics (astro-ph)

[74] arXiv:astro-ph/0004075 [pdf, other]

Title: The Cosmological Constant

Sean M. Carroll

Comments: 50 pages. Submitted to Living Reviews in Relativity (this http URL), December 1999

Journal-ref: LivingRev.Rel.4:1,2001

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

[75] arXiv:astro-ph/0004076 [pdf, other]

Title: A Note on Hydrodynamic Viscosity and Selfgravitation in Accretion Disks

Wolfgang J. Duschl (1,3), Peter A. Strittmatter (2,3), Peter L. Biermann (3) ((1) Institut f"ur Theoretische Astrophysik, Heidelberg, Germany, (2) Steward Observatory, The University of Arizona, Tucson, AZ, USA, (3) Max-Planck-Institut f"ur Radioastronomie, Bonn, Germany)

Comments: 10 pages, no figures, accepted by Astronomy & Astrophysics

Subjects: Astrophysics (astro-ph)

[76] arXiv:astro-ph/0004077 [pdf, other]

Title: Interpretation of the UV spectrum of some stars with little reddening

F.Zagury

Comments: 18 pages, 7 figures

Subjects: Astrophysics (astro-ph)

[77] arXiv:astro-ph/0004078 [pdf, other]

Title: The Origin of Star Formation Gradients in Rich Galaxy Clusters

Michael L. Balogh (U. Durham)Julio F. Navarro (U. Victoria)Simon L. Morris (DAO, NRC, HIA)

Comments: 11 pages emulateapj style, 4 embedded postscript figures Accepted for publication in ApJ

Journal-ref: Astrophys.J.540:113-121,2000

Subjects: Astrophysics (astro-ph)

[78] arXiv:astro-ph/0004079 [pdf, other]

Title: The sources of extended continuum emission towards Q0151+048A : The host galaxy and the Damped Ly-alpha Absorber

J.U. Fynbo (IFA, University of Aarhus), I. Burud (Institut d'Astrophysique, Universite de Liege), P. Moller (ESO, Garching)

Comments: 8 pages, 4 figures. Accepted for publication in A&A

Journal-ref: Astron.Astrophys.358:88-94,2000

Subjects: Astrophysics (astro-ph)

[79] arXiv:astro-ph/0004080 [pdf, other]

Title: Some Dynamical Effects of the Cosmological Constant

M. Axenides, E. G. Floratos, L. Perivolaropoulos

Comments: 5 two column pages, 2 figures

Journal-ref: Mod.Phys.Lett.A15:1541-1550,2000

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

[80] arXiv:astro-ph/0004081 [pdf, other]

Title: The gamma Velorum binary system. II. WR stellar parameters and the photon loss mechanism

Orsola De Marco, W. Schmutz, P.A. Crowther, D.J. Hillier, L.Dessart, A. de Koter, J. Schweickhardt

Subjects: Astrophysics (astro-ph)

[81] arXiv:astro-ph/0004082 [pdf, other]

Title: Network and Internetwork: a compared Multiwavelength Analysis

G. Cauzzi, A. Falchi, R. Falciani

Comments: 13 pages, Latex

Subjects: Astrophysics (astro-ph)

[82] arXiv:astro-ph/0004083 [pdf, other]

Title: Radio supernovae, supernova remnants and HII regions in NGC 2146 observed with MERLIN and the VLA

A. Tarchi, N. Neininger, A. Greve, U. Klein, S.T. Garrington, T.W.B. Muxlow, A. Pedlar, B.E. Glendenning

Comments: 10 pages, including 2 figures. Accepted for publication in Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[83] arXiv:astro-ph/0004084 [pdf, other]

Title: Magnetic Flux Expulsion in the Powerful Superbubble Explosions and the Alpha-Omega Dynamo

R.R. Rafikov, R.M. Kulsrud

Comments: MNRAS, in press, 11 pages, 9 figures

Journal-ref: Mon.Not.Roy.Astron.Soc. 314 (2000) 839-848

Subjects: Astrophysics (astro-ph)

[84] arXiv:astro-ph/0004085 [pdf, other]

Title: Preliminary design of a NIR prime focus corrector for the Galileo Telescope

Claudio Pernechele, Favio Bortoletto, Paolo Conconi, Daniele Gardiol, Emilio Molinari, Filippo Zerbi

Comments: 7 pages, SPIE proceedings

Subjects: Astrophysics (astro-ph)

[85] arXiv:astro-ph/0004086 [pdf, other]

Title: The Bispectrum: From Theory to Observations

Roman Scoccimarro

Comments: 46 pages, 18 figures. Accepted for publication in ApJ. Typos fixed and improved comparison with previous work

Subjects: Astrophysics (astro-ph)

[86] arXiv:astro-ph/0004087 [pdf, other]

Title: The Bispectrum of IRAS Galaxies

R. Scoccimarro, H.A. Feldman, J.N. Fry, J. Frieman

Comments: 30 pages, 11 figures

Journal-ref: Astrophys.J. 546 (2001) 652

Subjects: Astrophysics (astro-ph)

[87] arXiv:astro-ph/0004088 [pdf, other]

Title: A kinematic and morphological investigation of the asymmetric nebula around the LBV candidate WRA 751

Kerstin Weis (ITA, Heidelberg, Germany; MPIfR, Bonn, Germany)

Comments: 7 pages, 5 eps-figures, accepted for Astronomy & Astrophysics, also available through this http URL

Subjects: Astrophysics (astro-ph)

[88] arXiv:astro-ph/0004089 [pdf, other]

Title: Direct Detection of Giant Close-In Planets Around the Source Stars of Caustic-Crossing Microlensing Events

David S. Graff, B. Scott Gaudi (Ohio State University)

Comments: 4 pages, 2 figures. Submitted to ApJ Letters

Subjects: Astrophysics (astro-ph)

[89] arXiv:astro-ph/0004090 [pdf, other]

Title: The "Swiss cheese" cosmological model has no extrinsic curvature discontinuity: A comment on the paper by G.A. Baker, Jr. (astro-ph/0003152)

Charles C. Dyer, Chris Oliwa

Comments: 7 pages, no figures, Latex

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

[90] arXiv:astro-ph/0004091 [pdf, other]

Title: CFHT Optical PDCS Survey II: Evolution in the Space Density of Clusters of Galaxies

B. P. Holden, C. Adami, R. C. Nichol, F. J. Castander, L. M. Lubin, A. K. Romer, A. Mazure, M. Postman, M. P. Ulmer

Comments: 47 pages, LaTeX, using AASTEX v 5.0.2 preprint style. Tables included in the manuscript. Accepted in the Astronomical Journal, to be published July 2000. Abstract abridged

Journal-ref: 2000, AJ, 120, 23

Subjects: Astrophysics (astro-ph)

[91] arXiv:astro-ph/0004092 [pdf, other]

Title: A New Method For Galaxy Cluster Detection I: The Algorithm

Michael D. Gladders, H.K.C. Yee

Comments: To appear in November AJ, 22 pages, including 10 embedded figures, two-column preprint using aas2pp4 style file. For information on the associated 100 square degree, z~1 cluster survey, see this http URL

Journal-ref: Astron.J.120:2148,2000

Subjects: Astrophysics (astro-ph)

[92] arXiv:astro-ph/0004093 [pdf, other]

Title: The Effect of Hydrostatic Weighting on the Vertical Temperature Structure of the Solar Corona

Markus J. Aschwanden, Nariaki Nitta

Comments: 7 pages, 3 figures. ApJ Letters, accepted 2000 April 6, in press

Subjects: Astrophysics (astro-ph)

[93] arXiv:astro-ph/0004094 [pdf, other]

Title: Magnetohydrodynamic Instabilities in Shearing, Rotating, Stratified Winds and Disks

Woong-Tae Kim, Eve C. Ostriker (U of Maryland)

Comments: 65 pages, 17 postscript figures, Accepted for publication in ApJ

Subjects: Astrophysics (astro-ph)

[94] arXiv:astro-ph/0004095 [pdf, other]

Title: The Stellar Population Histories of Early-Type Galaxies. II. Controlling Parameters of the Stellar Populations

S. C. Trager (1), S. M. Faber (2), G. Worthey (3), J. J. Gonzalez (4) ((1) OCIW, (2) UCO/Lick, (3) St. Ambrose, (4) IA-UNAM)

Comments: To be published in the June 2000 issue of the Astronomical Journal. 28 pages, 13 figures, uses emulateapj

Journal-ref: Astron.J. 120 (2000) 165-188

Subjects: Astrophysics (astro-ph)

[95] arXiv:astro-ph/0004096 [pdf, other]

Title: Bubbles from dark energy ?

Jochen Weller

Comments: 4 pages, proceedings of PASCOS 1999

Subjects: Astrophysics (astro-ph)

[96] arXiv:astro-ph/0004097 [pdf, other]

Title: Formation of the Galactic stellar halo. Origin of the metallicity-eccentricity relation

Kenji Bekki, Masashi Chiba

Comments: 15 pages 4 figures (2 color), ApJL in press

Subjects: Astrophysics (astro-ph)

[97] arXiv:astro-ph/0004098 [pdf, other]

Title: Cosmic Magnetic Fields from Particle Physics

Ola Tornkvist (DAMTP, Cambridge)

Comments: 8 pages, 1 figure, talk presented at the 7th International Symposium on Particles, Strings and Cosmology (PASCOS-99) at Granlibakken, Lake Tahoe, 10-16 Dec 1999, to appear in the proceedings

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

[98] arXiv:astro-ph/0004099 [pdf, other]

Title: Exploring the Leo II dSph I.: The Variable Star Content

M. H. Siegel, S. R. Majewski

Comments: 44 pages, 8 figures, 3 tables, accepted in Astronomical Journal

Subjects: Astrophysics (astro-ph)

[99] arXiv:astro-ph/0004100 [pdf, other]

Title: ISO-SWS observations of pure rotational water absorption lines toward Orion-IRc2

C.M. Wright, E.F. van Dishoeck, J.H. Black, H. Feuchtgruber, J. Cernicharo, E. Gonzalez-Alfonso, Th. de Graauw

Comments: 13 pages, including 4 figures, accepted for publication in Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[100] arXiv:astro-ph/0004101 [pdf, other]

Title: StarFinder: an IDL GUI based code to analyze crowded fields with isoplanatic correcting PSF fitting

E.Diolaiti, O.Bendinelli, D.Bonaccini, L.M.Close, D.G.Currie, G.Parmeggiani

Comments: 9 pages, to to be published on "Proceeedings of Adaptive Optical Systems Technology",this http URL SPIE,Vol.4007,2000. In press

Subjects: Astrophysics (astro-ph)