Astrophysics

Authors and titles for August 2000

[451] arXiv:astro-ph/0008451 [pdf, other]

Title: Massive warm dark matter

Steen Hannestad

Comments: 5 pages, Revtex, 1 figure, reference corrected

Subjects: Astrophysics (astro-ph)

[452] arXiv:astro-ph/0008452 [pdf, other]

Title: On the coupling between different species during recombination

Steen Hannestad

Comments: 17 pages, 4 figs, version to appear in New Astronomy

Journal-ref: New Astron. 6 (2001) 17

Subjects: Astrophysics (astro-ph)

[453] arXiv:astro-ph/0008453 [pdf, other]

Title: The survival of subhaloes in galaxies and galaxy clusters

Eelco van Kampen (IfA, Edinburgh)

Comments: 14 pages, 5 figures (of which one in colour), submitted to MNRAS, ask evk@roe.this http URL for a paper copy with the colour figure at high-resolution

Subjects: Astrophysics (astro-ph)

[454] arXiv:astro-ph/0008454 [pdf, other]

Title: Density, Velocity, and Magnetic Field Structure in Turbulent Molecular Cloud Models

Eve C. Ostriker (1,2), James M. Stone (1), Charles F. Gammie (3) ((1) U. Maryland, (2) ITP, (3) U. Illinois)

Comments: 56 pages, 25 figures; Ap.J., accepted

Journal-ref: Astrophys.J.546:980-1005,2001

Subjects: Astrophysics (astro-ph)

[455] arXiv:astro-ph/0008455 [pdf, other]

Title: Long-term optical and X-ray observations of the old novae DI Lacertae and V841 Ophiuchi

D. W. Hoard, Paula Szkody, R. K. Honeycutt, Jeff Robertson, Vandana Desai, T. Hillwig

Comments: 16 pages, 9 figures, 4 tables; accepted by PASP on 28 August 2000 for the December 2000 issue

Subjects: Astrophysics (astro-ph)

[456] arXiv:astro-ph/0008456 [pdf, other]

Title: High redshift CO line emission: perspectives

F. Combes (Observatoire de Paris, DEMIRM)

Comments: 8 pages, 3 figures, in "Deep Millimeter Surveys: Implications for Galaxy Formation and Evolution", ed. J. Lowenthal and D. Hughes, World Scientific Publishers

Subjects: Astrophysics (astro-ph)

[457] arXiv:astro-ph/0008457 [pdf, other]

Title: An unresolved X-ray source inside the supernova remnant RCW 86

Jacco Vink (1), Fabrizio Bocchino (2,3), Francesco Damiani (3), Jelle S. Kaastra (4) ((1) AIP, Potsdam, Germany; (2) ESTEC, The Netherlands; (3) Osservatorio Astronomico di Palermo, Italy; (4) SRON, Utrecht, The Netherlands)

Comments: 4 pages, 3 figures. Accepted by Astronomy and Astrophyisics

Subjects: Astrophysics (astro-ph)

[458] arXiv:astro-ph/0008458 [pdf, other]

Title: Kinematics of the Parsec-Scale Relativistic Jet in Quasar 3C 279: 1991 - 1997

A. E. Wehrle, B. G. Piner, S. C. Unwin, A. C. Zook, W. Xu, A. P. Marscher, H. Terasranta, E. Valtaoja

Comments: 30 pages, including 10 figures, this http URL, accepted to The Astrophysical Journal Supplement

Journal-ref: Astrophys.J.Suppl.133:297-320,2001

Subjects: Astrophysics (astro-ph)

[459] arXiv:astro-ph/0008459 [pdf, other]

Title: Low-luminosity AGN and Normal Galaxies

A. Ptak

Comments: 10 pages, 7 figures. Invited review at Bologna X-ray Astronomy 1999. To appear in Astrophysical Letters and Communications

Subjects: Astrophysics (astro-ph)

[460] arXiv:astro-ph/0008460 [pdf, other]

Title: Embedded Star Clusters: The ISO View

Anlaug Amanda Kaas (1,2), Sylvain Bontemps (3) ((1) ESTEC, The Netherlands, (2) Nordic Optical Telescope, Spain, (3) Observatoire de Bordeaux, France)

Comments: 10 pages, 9 figures, To appear in the proceedings of the conference: From Darkness to Light, Cargese, April 2000, eds. T. Montmerle and Ph. Andre. See also this http URL

Subjects: Astrophysics (astro-ph)

[461] arXiv:astro-ph/0008461 [pdf, other]

Title: Snapshot Identification of Gamma Ray Burst Optical Afterglows

James E. Rhoads

Comments: 9 pages; LaTeX manuscript + 5 postscript files comprising 4 figures. Revised version accepted to The Astrophysical Journal. The most important change from submitted manuscript is an expanded discussion of single-color UV excess and IR excess afterglow identification techniques

Subjects: Astrophysics (astro-ph)

[462] arXiv:astro-ph/0008462 [pdf, other]

Title: A Probabilistic Quantification of Galaxy Cluster Membership

R.J. Brunner, L.M. Lubin (Department of Astronomy, California Institute of Technology)

Comments: 21 Pages LaTex, 6 Figures, Accepted for publication in the November issue of A.J

Subjects: Astrophysics (astro-ph)

[463] arXiv:astro-ph/0008463 [pdf, other]

Title: Three-Dimensional Modeling of the Deflagration Stage of a Type Ia Supernova Explosion

A.M. Khokhlov (Naval Research Laboratory)

Comments: 15 pages, TeX, 15 figures, submitted to ApJ

Subjects: Astrophysics (astro-ph)

[464] arXiv:astro-ph/0008464 [pdf, other]

Title: Spherically symmetric model atmospheres for low mass pre-Main Sequence stars with effective temperatures between 2000 and 6800 K

France Allard, Peter H. Hauschildt, Andreas Schweitzer

Comments: ApJ, in press. Also available at this ftp URL

Journal-ref: Astrophys.J.539:366-371,2000

Subjects: Astrophysics (astro-ph)

[465] arXiv:astro-ph/0008465 [pdf, other]

Title: TiO and H$_2$O absorption lines in cool stellar atmospheres

France Allard, Peter H. Hauschildt, David Schwenke

Comments: ApJ, in press. Also available at this ftp URL

Journal-ref: Astrophys.J.540:1005-1015,2000

Subjects: Astrophysics (astro-ph)

[466] arXiv:astro-ph/0008466 [pdf, other]

Title: Stars and Planetary Nebulae in the Galactic Bulge

F. Cuisinier, J. Koppen, A. Acker, W.J. Maciel

Comments: to be published in the proceedings of the conference "Galaxy Disks and Disk Galaxies", Funes J.G. and Corsini E.M. eds., ASP Conf. Series

Subjects: Astrophysics (astro-ph)

[467] arXiv:astro-ph/0008467 [pdf, other]

Title: Chandra X-ray Observations of Pictor A: High Energy Cosmic Rays in a Radio Galaxy?

A. S. Wilson, A. J. Young, P. L. Shopbell

Comments: 42 pages, 9 figures (3 JPEG, 6 Postscript), accepted for publication in the Astrophysical Journal, Vol 546, Jan 10 2001 issue. Section 4.3.2 revised October 12

Subjects: Astrophysics (astro-ph)

[468] arXiv:astro-ph/0008468 [pdf, other]

Title: Stellar Populations in the Phoenix Dwarf (dIrr/dSph) Galaxy as Observed by HST/WFPC2

Jon A. Holtzman (NMSU), Graeme H. Smith (UCO/Lick), Carl Grillmair (SIRTF Science Center)

Comments: Accepted by AJ, 22 pages including 6 figures + 1 figure in JPEG format

Subjects: Astrophysics (astro-ph)

[469] arXiv:astro-ph/0008469 [pdf, other]

Title: Secondary CMB Anisotropies from Cosmological Reionization

Nickolay Y. Gnedin, Andrew H. Jaffe

Comments: accepted by ApJ

Subjects: Astrophysics (astro-ph)

[470] arXiv:astro-ph/0008470 [pdf, other]

Title: The Principal Axis of the Virgo Cluster

Michael J. West (1), John P. Blakeslee (2) ((1)University of Hawaii at Hilo, (2)University of Durham)

Comments: 8 pages, 4 figures, accepted for publication in ApJ Letters

Subjects: Astrophysics (astro-ph)

[471] arXiv:astro-ph/0008471 [pdf, other]

Title: Physical Diagnostics from a Narrow Fe-Kalpha Emission Line Detected by Chandra in the Seyfert 1 Galaxy NGC 5548

T. Yaqoob (1, 2), I. M. George (1, 2), K. Nandra (1, 3), T. J. Turner (1, 2), P. J. Serlemitsos (1), R. F. Mushotzky (1) ((1) LHEA, NASA/GSFC (2) UMBC (3) USRA)

Comments: 35 pages including 3 figures. Latex file picks up figures. (Accepted for Publication in the Astrophysical Journal)

Subjects: Astrophysics (astro-ph)

[472] arXiv:astro-ph/0008472 [pdf, other]

Title: ASTRO-F - The next generation of mid-infrared surveys

Chris Pearson, H. Matsuhara, H. Watarai, T. Matsumoto (Institute of Space and Astronautical Sciences, Japan), T. Onaka (University of Tokyo)

Comments: 17 pages, 13 figures, accepted by MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 324 (2001) 999

Subjects: Astrophysics (astro-ph)

[473] arXiv:astro-ph/0008473 [pdf, other]

Title: Neutrino-electron processes in a strongly magnetized thermal plasma

Stephen J. Hardy, Markus H. Thoma

Comments: 17 pages, 8 figures, minor corrections, references added, to be published in Phys. Rev. D

Journal-ref: Phys.Rev. D63 (2001) 025014

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

[474] arXiv:astro-ph/0008474 [pdf, other]

Title: A cannonball model of gamma-ray bursts: superluminal signatures

Arnon Dar, Alvaro De Rujula

Comments: 9 pages, 5 figs, latex2e

Subjects: Astrophysics (astro-ph)

[475] arXiv:astro-ph/0008475 [pdf, other]

Title: A toroidal black hole for the AGN phenomenon

Fulvio Pompilio (SISSA/ISAS, Italy), S. M. Harun-or-Rashid (University of Helsinki, Finland), Matts Roos (University of Helsinki,Finland)

Comments: 7 pages, 2 figures, accepted for pubblication in A&A

Subjects: Astrophysics (astro-ph)

[476] arXiv:astro-ph/0008476 [pdf, other]

Title: A modification of the Monte Carlo method for simulation of radiative transfer in molecular clouds

Maxim A. Voronkov (Astro Space Center, Moscow, Russia)

Comments: 7 pages, 2 figures, 1 table

Journal-ref: Astronomy Letters, 1999, Vol. 25, p. 149

Subjects: Astrophysics (astro-ph)

[477] arXiv:astro-ph/0008477 [pdf, other]

Title: Can a Very Low-Luminosity and Cold White Dwarf be a Self-gravitating Bose Condensed System

Nandini Nag, Somenath Chakrabarty

Comments: REVTEX file no figure

Subjects: Astrophysics (astro-ph)

[478] arXiv:astro-ph/0008478 [pdf, other]

Title: Box- and peanut-shaped bulges: II. NIR observations

R. Luetticke, R.-J. Dettmar, M. Pohlen (Astronomisches Institut, Ruhr-Universitaet Bochum)

Comments: LaTeX, 14 pages, 17 figures, accepted to be published in A&A

Subjects: Astrophysics (astro-ph)

[479] arXiv:astro-ph/0008479 [pdf, other]

Title: On the occurrence of dwarf nova outbursts in post novae

M.R. Schreiber, B.T. Gaensicke, J.K. Cannizzo

Comments: accepted for publication in Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[480] arXiv:astro-ph/0008480 [pdf, other]

Title: Modelling 20 years of synchrotron flaring in the jet of 3C 273

M. Turler, T. J.-L. Courvoisier, S. Paltani

Comments: 13 pages, 6 figures, to be published in A&A

Journal-ref: Astron.Astrophys.361:850-862,2000

Subjects: Astrophysics (astro-ph)

[481] arXiv:astro-ph/0008481 [pdf, other]

Title: Gravitational Wave Astronomy: in Anticipation of First Sources to be Detected

L.P.Grishchuk, V.M.Lipunov, K.A.Postnov, M.E.Prokhorov, B.S.Sathyaprakash

Comments: latex, 100 pages, including 20 postscript figures. Small typos corrected, references added

Journal-ref: Phys.Usp.44:1-51,2001; Usp.Fiz.Nauk 171:3-59,2001

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

[482] arXiv:astro-ph/0008482 [pdf, other]

Title: Blue Quasars and Blazar Unification Schemes

Markos Georganopoulos

Comments: 11 pages, accepted for publication in ApJL

Subjects: Astrophysics (astro-ph)

[483] arXiv:astro-ph/0008483 [pdf, other]

Title: Cluster galaxies: contribution to the arc statistics

Massimo Meneghetti, Micol Bolzonella, Matthias Bartelmann, Lauro Moscardini, Giuseppe Tormen

Comments: 4 pages, Latex using this http URL. To be published in Proc. of the XXXVth Rencontres de Moriond--XXth Moriond Astrophysics Meeting on "L2K Cosmological Physics with Gravitational Lensing", J.P. Kneib, Y. Mellier, M. Moniez, J. Tran Thanh Van eds., Editions Frontieres

Subjects: Astrophysics (astro-ph)

[484] arXiv:astro-ph/0008484 [pdf, other]

Title: Prospects for future far-infrared/submillimeter studies of the high-redshift Universe

Andrew W. Blain (Cambridge)

Comments: 4 pages, no figures, uses this http URL. To appear in Proc. JD9, IAU Manchester 2000, `Cold Gas and Dust at High Redshift' ed. D.J. Wilner, Highlights of Astronomy Vol. 12. PASP

Journal-ref: Publ.Astron.Soc.Pac. 12 (2002) 493-496

Subjects: Astrophysics (astro-ph)

[485] arXiv:astro-ph/0008485 [pdf, other]

Title: Isolated neutron stars discovered by ROSAT

C. Motch

Comments: 10 pages 2 figures, invited paper at Bologna X-ray Astronomy 1999. To appear in Astrophysical Letters and Communications

Subjects: Astrophysics (astro-ph)

[486] arXiv:astro-ph/0008486 [pdf, other]

Title: Multiwaveband studies of the hard ROSAT SMC transient 1WGA J0053.8-7226: a new X-ray pulsar

D.A.H. Buckley (SAAO), M.J. Coe (Southampton), J.B. Stephens (Southampton), K. van der Heyden (SAAO), L. Angelini (NASA/GSFC), N. White (NASA/GSFC), P. Giommi (NASA/GSFC)

Comments: Accepted for publication in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 320 (2001) 281

Subjects: Astrophysics (astro-ph)

[487] arXiv:astro-ph/0008487 [pdf, other]

Title: Diffraction-limited near-IR imaging at Keck reveals asymmetric, time-variable nebula around carbon star CIT 6

J. D. Monnier (1), P. G. Tuthill (2), W. C. Danchi (3) ((1) Harvard-Smithsonian Center for Astrophysics (2) University of Sydney (3) NASA-GSFC)

Comments: 18 pages, 5 figures (one in color), to appear in the Astrophysical Journal

Subjects: Astrophysics (astro-ph)

[488] arXiv:astro-ph/0008488 [pdf, other]

Title: Raman-Scattering Wings of H alpha in Symbiotic Stars

Hee-Won Lee

Comments: 6 pages including 2 figures, to appear in the Astrophysical Journal Letters

Subjects: Astrophysics (astro-ph)

[489] arXiv:astro-ph/0008489 [pdf, other]

Title: The Theory of Steady State Super-Eddington Winds and its Application to Novae

Nir J. Shaviv

Comments: 20 Pages, 10 figures, accepted to MNRAS (uses this http URL). Significantly extended version

Journal-ref: Mon.Not.Roy.Astron.Soc. 326 (2001) 126

Subjects: Astrophysics (astro-ph)

[490] arXiv:astro-ph/0008490 [pdf, other]

Title: How many young star clusters exist in the Galactic center?

Simon Portegies Zwart (MIT), Junichiro Makino (Tokyo), Stephen McMillan (Drexel), Piet Hut (IAS)

Comments: ApJ Letters in press

Subjects: Astrophysics (astro-ph)

[491] arXiv:astro-ph/0008491 [pdf, other]

Title: Cosmic Rays and the Structure of Space-Time

Aurelio F. Grillo, Roberto Aloisio

Comments: 8 pages, 1 figure, talk presented at the Vulcano Workshop 2000

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

[492] arXiv:astro-ph/0008492 [pdf, other]

Title: Far-Ultraviolet Spectra of AGN: First Results from FUSE

Gerard A. Kriss

Comments: 17 pages, 11 figures, to appear in the proceedings of the GSFC workshop on "Probing the Physics of AGN by Multiwavelength Monitoring"

Subjects: Astrophysics (astro-ph)

[493] arXiv:astro-ph/0008493 [pdf, other]

Title: How young are early-type cluster galaxies ? Quantifying the young stellar component in a rich cluster at z=0.41

I. Ferreras, J. Silk (Oxford)

Comments: Accepted for publication in ApJ Letters. Uses this http URL. 5 pages with 3 embedded EPS figures

Journal-ref: Astrophys.J. 541 (2000) L37

Subjects: Astrophysics (astro-ph)

[494] arXiv:astro-ph/0008494 [pdf, other]

Title: Neutrinos and the Supernova Origin of the Elements

Yong-Zhong Qian (UMN)

Comments: 6 pages including 2 figures, to appear in the Proceedings of Neutrino 2000

Journal-ref: Nucl.Phys.Proc.Suppl. 91 (2000) 345-350

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

[495] arXiv:astro-ph/0008495 [pdf, other]

Title: What Is The BBN Prediction for the Baryon Density and How Reliable Is It?

Scott Burles, Kenneth M. Nollett, Michael S. Turner

Comments: 7 pages, 4 figures, Phys. Rev. D, in press New figure and updated numbers

Journal-ref: Phys.Rev. D63 (2001) 063512

Subjects: Astrophysics (astro-ph)

[496] arXiv:astro-ph/0008496 [pdf, other]

Title: A moving cold front in the intergalactic medium of A3667

A. Vikhlinin, M. Markevitch, S. S. Murray

Comments: Submitted to ApJ. 9 pages with embedded color figures, uses emulateapj5. Postscript with higher quality figures is available at this http URL

Journal-ref: Astrophys.J.551:160-171,2001

Subjects: Astrophysics (astro-ph)

[497] arXiv:astro-ph/0008497 [pdf, other]

Title: Dynamics of Black-Hole Nuclei

D. Merritt, F. Cruz, M. Milosavljevic (Rutgers University)

Comments: 12 pages, 5 figures, uses this http URL, Invited review to appear in ``Dynamics of Star Clusters and the Milky Way,'' eds. S. Deiters et al

Subjects: Astrophysics (astro-ph)

[498] arXiv:astro-ph/0008498 [pdf, other]

Title: Scattering of energetic particles by anisotropic magnetohydrodynamic turbulence with a Goldreich-Sridhar power spectrum

Benjamin D. G. Chandran

Comments: 5 pages, 1 figure, to appear in Physical Review Letters. Minor changes in wording and grammar from version 2. Like version 2, this version discusses relevance of magnetic-moment conservation to non-resonant scattering. All equations are the same as in version 1

Journal-ref: Phys.Rev.Lett.85:4656-4659,2000

Subjects: Astrophysics (astro-ph)

[499] arXiv:astro-ph/0008499 [pdf, other]

Title: Chandra estimate of the magnetic field strength near the cold front in A3667

A. Vikhlinin, M. Markevitch, S. S. Murray

Comments: Submitted to ApJ Letters. 4 pages with embedded color figures, uses emulateapj5. Postscript with higher quality figures is available at this http URL

Subjects: Astrophysics (astro-ph)

[500] arXiv:astro-ph/0008500 [pdf, other]

Title: omega Centauri - a former nucleus of a dissolved dwarf galaxy? New evidence from Stroemgren photometry

Michael Hilker (1), Tom Richtler (2) ((1) P. Univ. Catolica, Santiago, Chile, (2) Univ. de Concepcion, Chile)

Comments: 16 pages, 15 figures, accepted for publication in Astronomy & Astrophysics

Journal-ref: Astron.Astrophys.362:895-909,2000

Subjects: Astrophysics (astro-ph)