Astrophysics

Authors and titles for February 2000

[401] arXiv:astro-ph/0002401 [pdf, other]

Title: Gravitational Lenses With More Than Four Images: I. Classification of Caustics

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

Comments: 30 pages, including 12 postscript figures; accepted for publication in ApJ

Subjects: Astrophysics (astro-ph)

[402] arXiv:astro-ph/0002402 [pdf, other]

Title: Intrinsic constraints on very high energy emission in gamma-ray loud blazars

Jian-Min Wang

Comments: 9 pages in this http URL, 3 figures. Astrophysical Journal, Vol 538, 20 July Issue, 2000

Subjects: Astrophysics (astro-ph)

[403] arXiv:astro-ph/0002403 [pdf, other]

Title: ISO far-infrared observations of rich galaxy clusters II. Sersic 159-03

L. Hansen, H.E. Jorgensen, H.U. Norgaard-Nielsen, K. Pedersen, P. Goudfrooij, M.J.D. Linden-Vornle

Comments: 6 pages, 4 postscript figures, accepted for publication in `Astronomy and Astrophysics'

Subjects: Astrophysics (astro-ph)

[404] arXiv:astro-ph/0002404 [pdf, other]

Title: The Nature of Composite LINER/HII Galaxies, As Revealed from High-Resolution VLA Observations

Mercedes E. Filho (Lisbon Observatory and Kapteyn Astronomical Institute)Peter D. Barthel (Kapteyn Astronomical Institute)Luis C. Ho (Observatories of the Carnegie Institute of Washington)

Comments: 31 pages, 27 figures, accepted by ApJS

Journal-ref: Astrophys.J.Suppl. 129 (2000) 93-110

Subjects: Astrophysics (astro-ph)

[405] arXiv:astro-ph/0002405 [pdf, other]

Title: Recovering the Topology of the Initial Density Fluctuations Using the IRAS Point Source Catalogue Redshift Survey

A. Canavezes (CAUP,Portugal), J Sharpe (Imperial College,UK)

Comments: 12 pages, 12 figures, 3 tables, submitted for publication in the MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 326 (2001) 209

Subjects: Astrophysics (astro-ph)

[406] arXiv:astro-ph/0002406 [pdf, other]

Title: Polaris: astrometric orbit, position, and proper motion

R. Wielen, H. Jahreiss, C. Dettbarn, H. Lenhardt, H. Schwan

Comments: A&A paper, final version (minor changes only), in press

Subjects: Astrophysics (astro-ph)

[407] arXiv:astro-ph/0002407 [pdf, other]

Title: Abundances of light elements in metal-poor stars. III. Data analysis and results

Eugenio Carretta (1), Raffaele Gratton (1), Chris Sneden (2) ((1) Osservatorio Astronomico di Padova, ITALY, (2) University of Texas at Austin and McDonald Observatory, USA)

Comments: 17 pages, 11 encapsulated figures, LaTeX, uses this http URL. Tables 2 to 9 only available in electronic form at CDS or from first author. Accepted for publication in A&A

Journal-ref: Astron.Astrophys. 356 (2000) 238-252

Subjects: Astrophysics (astro-ph)

[408] arXiv:astro-ph/0002408 [pdf, other]

Title: Non-LTE Effects in Berylium Abundances

T.P. Idiart (IAG, Brasil), F. Thevenin (OCA, France)

Comments: 2 pages, 2 figures

Subjects: Astrophysics (astro-ph)

[409] arXiv:astro-ph/0002409 [pdf, other]

Title: The structure and evolution of weakly self-interacting cold dark matter halos

Andreas Burkert (Max-Planck-Institute for Astronomy, Heidelberg)

Comments: 15 pages, 2 figures. Accepted by Ap.J Letters on March, 24th

Subjects: Astrophysics (astro-ph)

[410] arXiv:astro-ph/0002410 [pdf, other]

Title: Signatures of Planets in the Observable Structure of Circumstellar Debris Disks

Mark C. Wyatt

Comments: 109 pages, 45 figures

Journal-ref: Ph.D. Thesis, University of Florida, December 1999

Subjects: Astrophysics (astro-ph)

[411] arXiv:astro-ph/0002411 [pdf, other]

Title: Kinetic theory of cosmic ray and gamma-ray production in supernova remnants expanding into wind bubbles

Evgeny G. Berezhko (Institute of Cosmophysical Research and Aeronomy, Yakutsk, Russia)Heinrich J. Voelk (Max-Planck-Institut fuer Kernphysik, Heidelberg, Germany)

Comments: 19 pages, 5 figures, to appear in Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[412] arXiv:astro-ph/0002412 [pdf, other]

Title: Expected Number and Flux Distribution of Gamma-Ray-Burst Afterglows with High Redshifts

Benedetta Ciardi, Abraham Loeb (CfA)

Comments: 29 pages, 14 figures; submitted to ApJ

Subjects: Astrophysics (astro-ph)

[413] arXiv:astro-ph/0002413 [pdf, other]

Title: Primordial Adiabatic Fluctuations from Cosmic Defects

P. P. Avelino (CAUP, Porto), C. J. A. P. Martins (DAMTP, CMS, Cambridge)

Comments: 5 LaTeX pages, no figures; version to appear in Phys. Rev. Lett

Journal-ref: Phys.Rev.Lett. 85 (2000) 1370-1373

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

[414] arXiv:astro-ph/0002414 [pdf, other]

Title: Superluminal Caustic is Just a Common Misconception: A Comment on astro-ph/0001199 by Zheng Zheng and Andrew Gould

Sun Hong Rhie

Comments: 19 pages including 2 .ps figures

Subjects: Astrophysics (astro-ph)

[415] arXiv:astro-ph/0002415 [pdf, other]

Title: Comptonization, reflection and noise in black hole binaries

M.Gilfanov (1,2), E.Churazov (1,2), M.Revnivtsev (2,1) ((1) MPA, Garching; (2) IKI, Moscow)

Comments: to appear in Proc. of the 5th CAS/MPG Workshop on High Energy Astrophysics

Subjects: Astrophysics (astro-ph)

[416] arXiv:astro-ph/0002416 [pdf, other]

Title: A Lens Mapping Algorithm for Weak Lensing

Tarun Deep Saini (IUCAA), Somak Raychaudhury (Birmingham)

Comments: 4 pages, 6 figures, uses this http URL (included); substantially revised; a slightly shorter version (fewer figures) will appear in this http URL

Journal-ref: Astrophys.J. 560 (2001) L9-L14

Subjects: Astrophysics (astro-ph)

[417] arXiv:astro-ph/0002417 [pdf, other]

Title: Research and Education in Basic Space Science: The Approach Pursued in the UN/ESA Workshops

H.M.K. Al-Naimiy (Jordan), C.P. Celebre (Philippines), K. Chamcham (Morocco), H.S.P. de Alwis (Sri Lanka), M.C.P. de Carias (Honduras), H.J. Haubold (United Nations), A.E. Troche Boggino (Paraguay)

Comments: 9 pages, LaTeX

Journal-ref: in W. Wamsteker et al. (eds.): Developing Basic Space Science World-Wide: A Decade of UN/ESA Workshops, Kluwer Academic Publishers, Dordrecht 2004, pp. 31-37

Subjects: Astrophysics (astro-ph)

[418] arXiv:astro-ph/0002418 [pdf, other]

Title: The Optical Gravitational Lensing Experiment. Catalog of Microlensing Events in the Galactic Bulge

A. Udalski, K. Zebrun, M. Szymanski, M. Kubiak, G. Pietrzynski, I. Soszynski, P. Wozniak

Comments: 25 pages, Latex+psfig. Only two pages of Appendix are included. Submitted to Acta Astronomica. Full Appendix, the entire Catalog and photmetric data are available from the OGLE Internet archive: this http URL or its US mirror this http URL Minor changes, a few references added

Subjects: Astrophysics (astro-ph)

[419] arXiv:astro-ph/0002419 [pdf, other]

Title: On the Perturbations of Viscous Rotating Newtonian Fluids

Manuel Ortega-Rodriguez, Robert V. Wagoner

Comments: Accepted for publication by The Astrophysical Journal. 11 pages, no figures

Subjects: Astrophysics (astro-ph)

[420] arXiv:astro-ph/0002420 [pdf, other]

Title: Shellflow. I. The Convergence of the Velocity Field at 6000 km/s

S. Courteau (UBC), J.A. Willick (deceased/formerly at Stanford), M.A. Strauss (Princeton), D. Schlegel (Princeton), M. Postman (STScI)

Comments: Accepted version for publication in ApJ. Includes an epitaph for Jeffrey Alan Willick (Oct 8, 1959 - Jun 18, 2000)

Subjects: Astrophysics (astro-ph)

[421] arXiv:astro-ph/0002421 [pdf, other]

Title: The Composition and Distribution of Dust Along the Line of Sight Towards the Galactic Center

J. E. Chiar, A. G. G. M. Tielens, D. C. B. Whittet, W. A. Schutte, A. C. A. Boogert, D. Lutz, E. F. van Dishoeck, M. P. Bernstein

Comments: 37 pages, including 14 figures and 6 tables. Accepted to Astrophys. J., to appear V. 537, Jul. 10, 2000

Subjects: Astrophysics (astro-ph)

[422] arXiv:astro-ph/0002422 [pdf, other]

Title: Simulating the effects of intergalactic grey dust

Rupert A.C. Croft (CfA), Romeel Dave' (Princeton), Lars Hernquist (CfA), Neal Katz (UMass)

Comments: 4 pages, 4 ps figures, this http URL, submitted to ApJ Lett

Subjects: Astrophysics (astro-ph)

[423] arXiv:astro-ph/0002423 [pdf, other]

Title: Photographic photometries and astrophysical parameters of the open clusters NGC1750 and NGC1758

K.P.Tian, C.G. Shu, J.L.Zhao, P.B.Stetson, C.Jordi, D.Galadi-Enriquez

Comments: 20 pages, Latex, 7 figures, submitted to A&A

Subjects: Astrophysics (astro-ph)

[424] arXiv:astro-ph/0002424 [pdf, other]

Title: The HI shell G132.6-0.7-25.3: A Supernova Remnant or an Old Wind-Blown Bubble?

Magdalen Normandeau (UC Berkeley), A. R. Taylor (U of Calgary), P. E. Dewdney (DRAO), Shantanu Basu (UWO)

Comments: 25 pages, 6 figures. Accepted for publication in the Astronomical Journal

Subjects: Astrophysics (astro-ph)

[425] arXiv:astro-ph/0002425 [pdf, other]

Title: Evolution of Lyman Break Galaxies Beyond Redshift Four

Renyue Cen (Princeton University Observatory)

Comments: in press, ApJ Letters, 15 latex pages plus 1 fig

Subjects: Astrophysics (astro-ph)

[426] arXiv:astro-ph/0002426 [pdf, other]

Title: Eccentric discs in binaries with intermediate mass ratios: Superhumps in the VY Sculptoris stars

J.R. Murray, B. Warner, D.T. Wickramasinghe

Comments: 6 pages with 7 figures, accepted by MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 315 (2000) 707

Subjects: Astrophysics (astro-ph)

[427] arXiv:astro-ph/0002427 [pdf, other]

Title: Dust lanes, thick absorbers, and the unification model for Seyfert galaxies

Giorgio Matt (Dip. Fisica, Univ. Roma Tre)

Comments: 4 pages, 1 figure. Accepted for publication in A&A Letters

Subjects: Astrophysics (astro-ph)

[428] arXiv:astro-ph/0002428 [pdf, other]

Title: The Impact of Rotation on Cluster Dynamics

Christian Boily (ARI, Heidelberg)

Comments: Talk given at the Strasbourg meeting Massive Star Clusters in November 1999; 7 pages, 3 figures xv-8bit giffed and tarred (= 100Kbytes); newpasp style file included

Subjects: Astrophysics (astro-ph)

[429] arXiv:astro-ph/0002429 [pdf, other]

Title: Erratum: Excitation Mechanism of Near-Infrared [Fe II] Emission in Seyfert and Starburst Galaxies (ApJ, 528, 186 [2000])

H. Mouri, K. Kawara, Y. Taniguchi

Comments: One postscript file (the correct version of Fig. 6), to appear in ApJ

Journal-ref: ApJ, 537, 1100 [2000]

Subjects: Astrophysics (astro-ph)

[430] arXiv:astro-ph/0002430 [pdf, other]

Title: Neutrino Afterglows and Progenitors of Gamma-Ray Bursts

Z. G. Dai, T. Lu (Nanjing University)

Comments: 13 pages, accepted for publication in ApJ

Subjects: Astrophysics (astro-ph)

[431] arXiv:astro-ph/0002431 [pdf, other]

Title: Constraints to the SSC model for Mkn 501

Fabrizio Tavecchio, Laura Maraschi Osservatorio Astronomico di Brera, Milano, Italy

Comments: 4 pages, 2 figures, to appear in the proceedings of the conference "X-Ray Astronomy '99", Bologna, Italy, September 1999

Journal-ref: AIP Conf.Proc. 599 (1999) 979-982

Subjects: Astrophysics (astro-ph)

[432] arXiv:astro-ph/0002432 [pdf, other]

Title: Searching for cluster substructure using APM and ROSAT data

Vaggelis Kolokotronis, Spyros Basilakos, Manolis Plionis, Ioannis Georgantopoulos (National Observatory of Athens)

Comments: 15 pages, including 9 figures, MNRAS in press, revised version

Journal-ref: Mon.Not.Roy.Astron.Soc. 320 (2001) 49

Subjects: Astrophysics (astro-ph)

[433] arXiv:astro-ph/0002433 [pdf, other]

Title: Rapid fading of optical afterglows as evidence for beaming in gamma-ray bursts

Y.F. Huang, Z.G. Dai, T. Lu (Nanjing University, Nanjing, China)

Comments: 5 pages, 4 embedded figures, l-aa style Latex, A&A Lett submitted

Journal-ref: A&A, 355 (2000), L43

Subjects: Astrophysics (astro-ph)

[434] arXiv:astro-ph/0002434 [pdf, other]

Title: Quantum Perturbative Approach to Discrete Redshift

Mark D. Roberts

Comments: some typos corrected, a referee's suggestions added as a footnote at the end of the conclusion

Journal-ref: Astrophys.Space Sci.279:305-342,2002

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

[435] arXiv:astro-ph/0002435 [pdf, other]

Title: The robust detection of stars on CCD images

Filip Hroch

Journal-ref: Exper.Astron. 9 (1999) 251-259

Subjects: Astrophysics (astro-ph)

[436] arXiv:astro-ph/0002436 [pdf, other]

Title: Constraining the Radio-Submm Redshift Indicator using data from the SCUBA Local Universe Galaxy Survey

L. Dunne, D.L. Clements, S. A. Eales

Comments: 8 pages including 7 figures, accepted for publication in MNRAS. Substantial extra content to original version, investigation into temperature and luminosity dependencies and addition of new high-z data points

Journal-ref: Mon.Not.Roy.Astron.Soc. 319 (2000) 813

Subjects: Astrophysics (astro-ph)

[437] arXiv:astro-ph/0002437 [pdf, other]

Title: Weak gravitational lensing in different cosmologies, using an algorithm for shear in three dimensions

Andrew J. Barber, Peter A. Thomas, H. M. P. Couchman, C. J. Fluke

Comments: 25 pages, LaTeX, 30 figures

Journal-ref: Mon.Not.Roy.Astron.Soc. 319 (2000) 267

Subjects: Astrophysics (astro-ph)

[438] arXiv:astro-ph/0002438 [pdf, other]

Title: Resolved Spectroscopy of the Narrow-Line Region in NGC 1068: Kinematics of the Ionized Gas

D.M. Crenshaw, S.B. Kraemer

Comments: 18 pages, Latex, includes 3 figures in postscript, to appear in the Astrophysical Journal Letters

Subjects: Astrophysics (astro-ph)

[439] arXiv:astro-ph/0002439 [pdf, other]

Title: C32, A Young Star Cluster in IC 1613

Ted K. Wyder (1), Paul W. Hodge (1), Andrew Cole (2) ((1) University of Washington (2) University of Massachusetts - Amherst)

Comments: 5 pages, 5 figures, to be published in the May 2000 issue of the PASP

Subjects: Astrophysics (astro-ph)

[440] arXiv:astro-ph/0002440 [pdf, other]

Title: ISO spectroscopy of circumstellar dust in the Herbig Ae systems AB Aur and HD 163296

M.E. van den Ancker, J. Bouwman, P.R. Wesselius, L.B.F.M. Waters, S.M. Dougherty, E.F. van Dishoeck

Comments: 6 pages, 2 figures, accepted for publication in Astronomy & Astrophysics

Subjects: Astrophysics (astro-ph)

[441] arXiv:astro-ph/0002441 [pdf, other]

Title: Winds from accretion disks driven by the radiation and magnetocentrifugal force

D. Proga (GSFC/NASA)

Comments: LaTeX, 11 pages, 6 color postscript or PJEG files, to appear in ApJ

Subjects: Astrophysics (astro-ph)

[442] arXiv:astro-ph/0002442 [pdf, other]

Title: Physics in Ultra-strong Magnetic Fields

Robert C. Duncan

Comments: Review talk given at Fifth Huntsville Gamma-Ray Burst Symposium. 12 pages with 5 eps figures

Subjects: Astrophysics (astro-ph)

[443] arXiv:astro-ph/0002443 [pdf, other]

Title: Extremely Red Objects in the Field of QSO 1213-0017: A Galaxy Concentration at z=1.31

Michael C. Liu (1), Arjun Dey (2), James R. Graham (1), Kevin A. Bundy (1), Charles C. Steidel (3), Kurt L. Adelberger (3), Mark E. Dickinson (4) ((1) UC Berkeley, (2) NOAO, (3) Caltech, (4) STScI)

Comments: 37 pages including 11 Postscript figures. To appear in the June 2000 issue of the Astronomical Journal

Subjects: Astrophysics (astro-ph)

[444] arXiv:astro-ph/0002444 [pdf, other]

Title: Heliospheric, Astrospheric, and Insterstellar Lyman-alpha Absorption Toward 36 Oph

Brian E. Wood, Jeffrey L. Linsky, Gary P. Zank

Comments: 21 pages, 6 figures; AASTEX v5.0 plus EPSF extensions in this http URL; to appear in ApJ

Subjects: Astrophysics (astro-ph)

[445] arXiv:astro-ph/0002445 [pdf, other]

Title: NICMOS Imaging of a Damped Lyman-alpha Absorber at z=1.89 toward LBQS 1210+1731 : Constraints on Size and Star Formation Rate

Varsha P. Kulkarni (1 and 2), John M. Hill (2), Glenn Schneider (2), Ray J. Weymann (3), Lisa J. Storrie-Lombardi (3 and 4), Marcia J. Rieke (2), Rodger I. Thompson (2), Buell T. Jannuzi (5) ((1) Clemson University, (2) Univ. of Arizona, (3) Carnegie Observatories, (4) SIRTF Science Center, (5) NOAO)

Comments: 52 pages of text, 19 figures, To be published in Astrophysical Journal (accepted Dec. 8, 1999)

Subjects: Astrophysics (astro-ph)

[446] arXiv:astro-ph/0002446 [pdf, other]

Title: The Lx-T, Lx-sigma and sigma-T relations for groups and clusters of galaxies

Yan-Jie Xue, Xiang-Ping Wu

Comments: 22 pages, 3 figures, accepted for publication in ApJ

Subjects: Astrophysics (astro-ph)

[447] arXiv:astro-ph/0002447 [pdf, other]

Title: Optically dim counterparts of hard X-ray selected AGNs

R. Maiolino, M. Salvati, L.A. Antonelli, A. Comastri, F.Fiore, F. Ghinassi, R. Gilli, F. La Franca, F. Mannucci, G. Risaliti, D. Thompson, C. Vignali

Comments: 5 pages, 2 figures, to appear in A&A Letters

Subjects: Astrophysics (astro-ph)

[448] arXiv:astro-ph/0002448 [pdf, other]

Title: Observing high-redshift Supernovae in lensed galaxies

Tarun Deep Saini (1), Somak Raychaudhury (1), Yuri A. Shchekinov (2,3) ((1) IUCAA, Pune, India, (2) Rostov University, Russia, (3) OAA, Firenze, Italy)

Comments: 6 pages, 3 figures, uses this http URL. Submitted to Astronomy & Astrophysics

Journal-ref: Astron.Astrophys.363:349,2000

Subjects: Astrophysics (astro-ph)

[449] arXiv:astro-ph/0002449 [pdf, other]

Title: What Damped Ly-alpha Systems Tell Us About the Radial Distribution of Cold Gas at High Redshift

Ariyeh H. Maller, Jason X. Prochaska, Rachel S. Somerville, Joel R. Primack

Comments: 14 pages, 13 figures, submitted to MNRAS

Subjects: Astrophysics (astro-ph)

[450] arXiv:astro-ph/0002450 [pdf, other]

Title: Spark Model for Pulsar Radiation Modulation Patterns

Janusz Gil, Marek Sendyk

Comments: 31 pages, 8 figures, accepted by ApJ

Subjects: Astrophysics (astro-ph)