Astrophysics

Authors and titles for June 2000

[201] arXiv:astro-ph/0006201 [pdf, other]

Title: The Bright Gamma-Ray Burst 991208 - Tight Constraints on Afterglow Models from Observations of the Early-Time Radio Evolution

T. J. Galama, M. Bremer, F. Bertoldi, K.M. Menten, U. Lisenfeld, D. S. Shepherd, B. Mason, F. Walter, G. G. Pooley, D. A. Frail, R. Sari, S. R. Kulkarni, E. Berger, J.S. Bloom, A. J. Castro-Tirado, J. Granot

Comments: 15 pages, 4 figures, submitted to ApJ Letters

Subjects: Astrophysics (astro-ph)

[202] arXiv:astro-ph/0006202 [pdf, other]

Title: On the Origin of the Iron K Line in the Spectrum of the Galactic X-ray Background

Azita Valinia, Vincent Tatischeff, Keith Arnaud, Ken Ebisawa, Reuven Ramaty

Comments: Accepted for Publication in the Astrophysical Journal, Nov. 20 issue

Subjects: Astrophysics (astro-ph)

[203] arXiv:astro-ph/0006203 [pdf, other]

Title: The Effect of Gasdynamics on the Structure of Dark Matter Halos

Marcelo Alvarez, Paul R. Shapiro, Hugo Martel (University of Texas at Austin)

Comments: To appear in "The Seventh Texas-Mexico Conference on Astrophysics: Flows, Blows, and Glows," eds. W. Lee and S. Torres-Peimbert, RevMexAA (Serie de Conferencias), in press (2000) (6 pages, 4 figures)

Subjects: Astrophysics (astro-ph)

[204] arXiv:astro-ph/0006204 [pdf, other]

Title: Source depth for solar p-modes

Pawan Kumar (IAS), Sarbani Basu (Yale)

Subjects: Astrophysics (astro-ph)

[205] arXiv:astro-ph/0006205 [pdf, other]

Title: Monte Carlo Simulations of Globular Cluster Dynamics

F. A. Rasio (MIT)

Comments: 7 pages, with 2 postscript figures, to appear in Dynamics of Star Clusters and the Milky Way, eds. R. Spurzem et al. (ASP Conference Series)

Subjects: Astrophysics (astro-ph)

[206] arXiv:astro-ph/0006206 [pdf, other]

Title: GRB 991216 Joins the Jet Set: Discovery and Monitoring of its Optical Afterglow

J. P. Halpern, R. Uglesich, N. Mirabal, S. Kassin, J. Thorstensen, W. C. Keel, A. Diercks, J. S. Bloom, F. Harrison, J. Mattox, M. Eracleous

Comments: 19 pages, accepted by The Astrophysical Journal

Subjects: Astrophysics (astro-ph)

[207] arXiv:astro-ph/0006207 [pdf, other]

Title: The Multiband Photometry of the GRB Host Galaxies

V. V. Sokolov, T. A. Fatkhullin, V. N. Komarova (Special Astrophysical Observatory of RAS)

Comments: New reference, comments for Table 1, and more accurate estimates for M_B of GRB 980703 and GRB 990123 host galaxies are given

Subjects: Astrophysics (astro-ph)

[208] arXiv:astro-ph/0006208 [pdf, other]

Title: Signs of the cusps in binary lenses

Valerio Bozza

Comments: 18 pages, 2 figures. Accepted by Journal of Mathematical Physics. After it is published, it will be found at this http URL

Journal-ref: J.Math.Phys. 41 (2000) 6284-6295

Subjects: Astrophysics (astro-ph)

[209] arXiv:astro-ph/0006209 [pdf, other]

Title: A Dust Cloud of Ganymede Maintained by Hypervelocity Impacts of Interplanetary Micrometeoroids

Harald Krüger (1), Alexander V. Krivov (2), Eberhard Grün (1) (1) (Max-Planck-Institut für Kernphysik, Heidelberg, Germany) (2) (Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany)

Comments: 31 pages, 10 figures, accepted for Planetary and Space Science

Subjects: Astrophysics (astro-ph)

[210] arXiv:astro-ph/0006210 [pdf, other]

Title: The Observation of Lunar Impacts

Giovanni Imponente, Costantino Sigismondi

Journal-ref: WGN, the Journal of the IMO, International Meteor Organization, April-June 2000 issue

Subjects: Astrophysics (astro-ph)

[211] arXiv:astro-ph/0006211 [pdf, other]

Title: Detection of the thermal radio continuum emission from the G9.62+0.19-F Hot Core

L. Testi (Arcetri), P. Hofner (UPR, Arecibo), S. Kurtz (UNAM), M. Rupen (NRAO)

Comments: 4 pages, 3 figs, A&A Letters, in press

Subjects: Astrophysics (astro-ph)

[212] arXiv:astro-ph/0006212 [pdf, other]

Title: Kelvin-Helmholtz instability in three dimensional radiative jets

M. Micono (1 and 2), G. Bodo (2), S. Massaglia (1), P. Rossi (2), A. Ferrari (1 and 2), R. Rosner (3) ((1) Universita` di Torino, (2) Osservatorio Astronomico di Torino, (3) University of Chicago)

Comments: 15 pages containing 13 postscript figures; uses A&A macros. To appear in Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[213] arXiv:astro-ph/0006213 [pdf, other]

Title: Detection of a spectroscopic transit by the planet orbiting the star HD209458

D. Queloz, A. Eggenberger, M. Mayor, C. Perrier, J.L. Beuzit, D. Naef, J.P. Sivan, S. Udry

Comments: A&A accepted, 5 pages

Subjects: Astrophysics (astro-ph)

[214] arXiv:astro-ph/0006214 [pdf, other]

Title: Temperature and Density Gradients Across the Nucleus of M82

Glen R. Petitpas, Christine D. Wilson

Comments: 8 pages + 2 colour figures; accepted for ApJ Letters

Subjects: Astrophysics (astro-ph)

[215] arXiv:astro-ph/0006215 [pdf, other]

Title: The Properties of the X-Ray-Selected EMSS Sample of BL Lac Objects

T.A. Rector, J.T. Stocke, E.S. Perlman, S.L. Morris, I.M. Gioia

Comments: 32 pages, 63 figures, accepted AJ

Subjects: Astrophysics (astro-ph)

[216] arXiv:astro-ph/0006216 [pdf, other]

Title: Reconstructing the evolution of double helium white dwarfs: envelope loss without spiral-in

Gijs Nelemans, Frank Verbunt, Lev R. Yungelson, Simon F. Portegies Zwart

Comments: 8 pages, accepted for publication in A&A

Journal-ref: A&A, 360, 1011-1018 (2000)

Subjects: Astrophysics (astro-ph)

[217] arXiv:astro-ph/0006217 [pdf, other]

Title: WFPC2 Stellar Photometry with HSTphot

Andrew E. Dolphin

Comments: 33 pages, 7 figures Accepted for publication in October 2000 PASP

Journal-ref: Publ.Astron.Soc.Pac.112:1383-1396,2000

Subjects: Astrophysics (astro-ph)

[218] arXiv:astro-ph/0006218 [pdf, other]

Title: Halo Properties in Cosmological Simulations of Self-Interacting Cold Dark Matter

Romeel Davé, David N. Spergel, Paul J. Steinhardt, Benjamin D. Wandelt (Princeton University)

Comments: 14 pages, submitted to ApJ

Journal-ref: Astrophys.J.547:574-589,2001

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

[219] arXiv:astro-ph/0006219 [pdf, other]

Title: A Near-Infrared L Band Survey of the Young Embedded Cluster NGC 2024

Karl E. Haisch Jr. (1), Elizabeth A. Lada (1), Charles J. Lada (2) ((1) University of Florida, (2) Smithsonian Astrophysical Observatory)

Comments: 37 pages, 8 figures, 3 tables, To appear in the Astronomical Journal

Subjects: Astrophysics (astro-ph)

[220] arXiv:astro-ph/0006220 [pdf, other]

Title: A Plasma Prism Model for an Anomalous Dispersion Event in the Crab Pulsar

D. C. Backer, T. Wong, J. Valanju

Comments: 13 this http URL., 9 fig.; scheduled for the v543n2p Nov 10, 2000 issue of ApJ

Subjects: Astrophysics (astro-ph)

[221] arXiv:astro-ph/0006221 [pdf, other]

Title: Cosmic Ray Generation by Quasar Remnants: Constraints and Implications

Elihu Boldt (NASA/GSFC), Michael Loewenstein (NASA/GSFC-UMD)

Comments: 11 pages Latex, no figures, uses mn and amssymb style files, accepted for publication in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc.316:L29,2000

Subjects: Astrophysics (astro-ph)

[222] arXiv:astro-ph/0006222 [pdf, other]

Title: Removing radio interference from contaminated astronomical spectra using an independent reference signal and closure relations

F. H. Briggs, J. F. Bell, M. J. Kesteven

Comments: 15 pages, 13 figures, accepted at AJ

Subjects: Astrophysics (astro-ph)

[223] arXiv:astro-ph/0006223 [pdf, other]

Title: Nonlinear Evolution of Very Small Scale Cosmological Baryon Perturbations at Recombination

Guo-Chin Liu (1 and 2), Kazuhiro Yamamoto (3), Naoshi Sugiyama (1), Hiroaki Nishioka (3) ((1)NAO Japan,(2)Kyoto Univ.,(3)Hiroshima Univ.)

Comments: 24 pages, 9 figures, submitted to ApJ

Journal-ref: Astrophys.J. 547 (2001) 1-11

Subjects: Astrophysics (astro-ph)

[224] arXiv:astro-ph/0006224 [pdf, other]

Title: ASCA Observation of the Lyman-limit Quasar PKS2145+067

N.Y.Yamasaki, T.Ishikawa, T. Ohashi

Comments: 15 pages, 3figures, Latex(PASJadd,sty, this http URL) accepted in PASJ

Subjects: Astrophysics (astro-ph)

[225] arXiv:astro-ph/0006225 [pdf, other]

Title: 150 keV Emission from PKS2149-306 with BeppoSAX

Martin Elvis, Fabrizio Fiore, Aneta Siemiginowska, Jill Bechtold, Smita Mathur, Jonathan McDowell

Comments: 18 pages, 3 figures. LaTeX, with AAS .sty file aasms4. Revised to correct a stupid mistake affecting the Fe-K EW. The results now agree with the ASCA data from Yaqoob et al

Journal-ref: Astrophysical Journal, vol.544, p.545 (2000)

Subjects: Astrophysics (astro-ph)

[226] arXiv:astro-ph/0006226 [pdf, other]

Title: Can Rotational Properties of General Relativistic Compact Objects Be Predicted from Static Ones?

K. S. Cheng (HKU), T. Harko (HKU)

Comments: 39 pages, including 7 figures, minor changes

Subjects: Astrophysics (astro-ph)

[227] arXiv:astro-ph/0006227 [pdf, other]

Title: Soft state of Cygnus X-1: stable disk and unstable corona

E.Churazov (MPA,IKI), M.Gilfanov (MPA,IKI), M.Revnivtsev (IKI,MPA)

Comments: 8 pages; accepted for publication in MNRAS; replaced with accepted version

Journal-ref: Mon.Not.Roy.Astron.Soc. 321 (2001) 759

Subjects: Astrophysics (astro-ph)

[228] arXiv:astro-ph/0006228 [pdf, other]

Title: Theoretical Models for Classical Cepheids: VII. Metallicity effects on the Cepheid distance scale

F. Caputo (Astron. Obs. of Roma), M. Marconi (Astron. Obs. of Capodimonte), I. Musella (Astron. Obs. of Capodimonte), P. Santolamazza (Astron. Obs. of Capodimonte)

Comments: 22 pages, 6 postscript figures, accepted for publication on Astronomy and Astrophysics

Journal-ref: Astron.Astrophys.359:1059-1067,2000

Subjects: Astrophysics (astro-ph)

[229] arXiv:astro-ph/0006229 [pdf, other]

Title: Classical Cepheid pulsation models. VI. The Hertzsprung progression

G. Bono (Astron. Obs. of Roma), M. Marconi (Astron. Obs. of Capodimonte), R. F. Stellingwerf (SC, 2229 Loma Linda, Los Alamos)

Comments: 19 pages, 12 postscript figures, 1 latex file containing three tables, accepted for publication on Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[230] arXiv:astro-ph/0006230 [pdf, other]

Title: The Very Low Mass Component of the Gliese 105 System

David A. Golimowski, Todd J. Henry, John E. Krist, Daniel J. Schroeder, Geoffrey W. Marcy, Debra A. Fischer, R. Paul Butler

Comments: 16 pages, 6 figures; to be published in the October 2000 issue of The Astronomical Journal

Journal-ref: Astron.J. 120 (2000) 2082

Subjects: Astrophysics (astro-ph)

[231] arXiv:astro-ph/0006231 [pdf, other]

Title: Theoretical Models of Young Open Star Clusters: Effects of a Gaseous Component and Gas Removal

Fred C. Adams (Physics Dept., Univesity of Michigan)

Comments: 19 pages, 6 figures, AAS TeX, accepted to ApJ

Subjects: Astrophysics (astro-ph)

[232] arXiv:astro-ph/0006232 [pdf, other]

Title: New identification of the near infrared Source in the "born-again" planetary nebula A58 (=V605 Aql)

S. Kimeswenger, J. Koller, S. Schmeja (U. Innsbruck)

Comments: 3 pages, 2 figures

Subjects: Astrophysics (astro-ph)

[233] arXiv:astro-ph/0006233 [pdf, other]

Title: Sub-mm and X-ray background: two unrelated phenomena?

P. Severgnini, R. Maiolino, M. Salvati, D. Axon, A. Cimatti, F. Fiore, R. Gilli, F. La Franca, A. Marconi, G. Matt, G. Risaliti, C. Vignali

Comments: 7 pages, 1 figure. Accepted for publication in A&A

Subjects: Astrophysics (astro-ph)

[234] arXiv:astro-ph/0006234 [pdf, other]

Title: USA and RXTE Observations of a Variable Low-Frequency QPO in XTE J1118+480

K. S. Wood, P. S. Ray, R. M. Bandyopadhyay, M. T. Wolff, G. Fritz, P. Hertz, M. P. Kowalski, M. N. Lovellette, D. Yentis, E. Bloom, B. Giebels, G. Godfrey, K. Reilly, P. Saz Parkinson, G. Shabad, J. Scargle

Comments: Accepted by ApJ Letters, reference added, minor revisions, 6 pages

Journal-ref: Astrophys.J. 544 (2000) L45-L48

Subjects: Astrophysics (astro-ph)

[235] arXiv:astro-ph/0006235 [pdf, other]

Title: Photospheric Metals in the FUSE Spectrum of the Subdwarf B Star PG0749+658

R. G. Ohl (Johns Hopkins U., U. of Virginia), P. Chayer (Johns Hopkins U., U. of Victoria), H. W. Moos (Johns Hopkins U.)

Comments: 8 pages, 2 figures; This paper will appear in the FUSE special issue of ApJ Letters

Subjects: Astrophysics (astro-ph)

[236] arXiv:astro-ph/0006236 [pdf, other]

Title: Eclipsing Binaries in the OGLE Variable Star Catalogs.V. Long-Period Beta Lyrae-type Systems in the Small Magellanic Cloud and the PLC-beta Relation

Slavek M. Rucinski (David Dunlap Observatory, University of Toronto), Carla Maceroni (Rome Observatory)

Comments: submitted for publication in Astronomical Journal; 8 PS figures, 2 tables

Subjects: Astrophysics (astro-ph)

[237] arXiv:astro-ph/0006237 [pdf, other]

Title: The Charge Transfer Efficiency and Calibration of WFPC2

Andrew E. Dolphin

Comments: 30 pages, 10 figures Accepted for publication in October 2000 PASP

Journal-ref: Publ.Astron.Soc.Pac. 112 (2000) 1397-1410

Subjects: Astrophysics (astro-ph)

[238] arXiv:astro-ph/0006238 [pdf, other]

Title: The Highest Redshift Radio Galaxies

Wil van Breugel

Comments: Paper presented at the SPIE conference on Discoveries and Research Prospects from 8 - 10 Meter - Class Telescopes, March 30, Munich, Germany. To be published in the SPIE Proceedings

Subjects: Astrophysics (astro-ph)

[239] arXiv:astro-ph/0006239 [pdf, other]

Title: Physical parameters and emission mechanism in Gamma-Ray Bursts

E. V. Derishev (1), V. V. Kocharovsky (1 and 2), Vl. V. Kocharovsky (1) ((1) Institute of Applied Physics RAS, (2) Texas A&M University)

Comments: Journal reference added, introduction extended, minor changes in notations

Journal-ref: Astron.Astrophys. 372 (2001) 1071

Subjects: Astrophysics (astro-ph)

[240] arXiv:astro-ph/0006240 [pdf, other]

Title: 3-D MHD Numerical Simulations of Cloud-Wind Interactions

G. Gregori (U. Minnesota), Francesco Miniati (U. Minnesota), Dongsu Ryu (Chungnam National University, Korea), T. W. Jones (U. Minnesota)

Comments: 12 pages, 10 figures. Accepted for Publication in the Astrophysical Journal, Nov. 10, 2000 issue

Subjects: Astrophysics (astro-ph)

[241] arXiv:astro-ph/0006241 [pdf, other]

Title: Implications of mean field accretion disc theory for vorticity and magnetic field growth

Eric G. Blackman (Univ. of Rochester)

Comments: 17 Pages LaTex, revised version

Journal-ref: Mon.Not.Roy.Astron.Soc. 323 (2001) 497

Subjects: Astrophysics (astro-ph)

[242] arXiv:astro-ph/0006242 [pdf, other]

Title: Effect of a neutron-star crust on the r-mode instability

Lee Lindblom, Benjamin J. Owen, Greg Ushomirsky

Comments: 12 Pages, 4 Figures

Journal-ref: Phys.Rev. D62 (2000) 084030

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

[243] arXiv:astro-ph/0006243 [pdf, other]

Title: The Harmonic and Sideband Structure of the Kilohertz Quasi-Periodic Oscillations in Sco X-1

Mariano Mendez, Michiel van der Klis (University of Amsterdam)

Comments: To appear in MNRAS (5 pages; 2 figures)

Journal-ref: Mon.Not.Roy.Astron.Soc. 318 (2000) 938

Subjects: Astrophysics (astro-ph)

[244] arXiv:astro-ph/0006244 [pdf, other]

Title: Timing the Kilohertz Quasi-Periodic Oscillations in Low-mass X-ray Binaries

Mariano Mendez (University of Amsterdam)

Comments: To appear in the Proceedings of the NATO ASI School "The Neutron Star - Black Hole Connection" (Kluwer Academic Publishers), C. Kouveliotou, J. van Paradijs, J. Ventura (eds.). (6 pages; 4 figures)

Subjects: Astrophysics (astro-ph)

[245] arXiv:astro-ph/0006245 [pdf, other]

Title: The Amplitude of the Kilohertz Quasi-periodic Oscillations in 4U 1728-34, 4U 1608-52, and Aql X-1, as a Function of X-ray Intensity

Mariano Mendez, Michiel van der Klis, Eric C. Ford (University of Amsterdam)

Comments: Submitted to ApJ.(7 pages; 9 figures)

Subjects: Astrophysics (astro-ph)

[246] arXiv:astro-ph/0006246 [pdf, other]

Title: Limits on the cosmic-ray ionization rate toward massive young stars

Floris F.S. van der Tak, Ewine F. van Dishoeck (Sterrewacht Leiden, The Netherlands)

Comments: To be published in A&A 358 (Letters); 4 pages including 3 figures

Subjects: Astrophysics (astro-ph)

[247] arXiv:astro-ph/0006247 [pdf, other]

Title: Near-infrared photometry of isolated spirals with and without an AGN. II: Photometric properties of the host galaxies

I. Marquez (IAA, CSIC), F. Durret (IAP), J. Masegosa (IAA, CSIC), M. Moles (IMAFF, CSIC), R.M. Gonzalez Delgado (IAA, CSIC), I. Marrero (IAA, CSIC), J. Maza (Univ. Chile), E. Perez (IAA, CSIC), M. Roth (Obs. Carnegie Washington)

Comments: 9 pages, accepted for publication in Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[248] arXiv:astro-ph/0006248 [pdf, other]

Title: Time-scales of Radio Emission in PSR J0437-4715 at 327 MHz

M. Vivekanand

Comments: Accepted for publication in Vol 543 (1 Nov 2000) of The Astrophysical Journal

Subjects: Astrophysics (astro-ph)

[249] arXiv:astro-ph/0006249 [pdf, other]

Title: BeppoSAX Observations of the Soft Gamma-Ray Repeater SGR 1806-20

S.Mereghetti, D.Cremonesi, M.Feroci, M. Tavani

Comments: 5 pages, latex, 2 figures, Accepted for publication on Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[250] arXiv:astro-ph/0006250 [pdf, other]

Title: Testing Dispersion Relations of Quantum $\kappa$-Poincar\'e Algebra on Cosmological Ground

J. Kowalski-Glikman

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

Journal-ref: Phys.Lett. B499 (2001) 1-8

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