Astrophysics

Authors and titles for February 2000

[301] arXiv:astro-ph/0002301 [pdf, other]

Title: Sachs-Wolfe effect in space-times with torsion

L.C.Garcia de Andrade

Comments: Latex file 4.46 Kb

Subjects: Astrophysics (astro-ph)

[302] arXiv:astro-ph/0002302 [pdf, other]

Title: Spirals and the size of the disk in EX Dra

V. Joergens (1,2), H.C. Spruit (1), R.G.M. Rutten (3,4) ((1) MPI f"ur Astrophysik, Garching; (2) MPI f"ur Extraterrestrische Physik, Garching; (3) Netherlands Foundation for Research in Astronomy; (4) Royal Greenwich Observatory, La Palma)

Comments: accepted (A&A Letter)

Subjects: Astrophysics (astro-ph)

[303] arXiv:astro-ph/0002303 [pdf, other]

Title: Design optimization of MACHe3, a project of superfuid He3 detector for direct Dark Matter search

F. Mayet, D. Santos, G. Perrin, Yu. M. Bunkov, H. Godfrin

Comments: 20 pages, 12 figures

Journal-ref: Nucl.Instrum.Meth.A455:554-563,2000

Subjects: Astrophysics (astro-ph)

[304] arXiv:astro-ph/0002304 [pdf, other]

Title: The frequency content of Delta Sct stars as determined by photometry

Ennio Poretti (Osservatorio Astronomico di Brera)

Comments: 22 pages, 9 eps figures. Invited review at "Delta Scuti and Related Stars", (Vienna, August 1999). To be published in ASP Conference Series, M. Breger and M.H. Montgomery Eds

Subjects: Astrophysics (astro-ph)

[305] arXiv:astro-ph/0002305 [pdf, other]

Title: On dust-correlated Galactic emission in the Tenerife data

P. Mukherjee, A.W. Jones, R. Kneissl, A.N. Lasenby

Comments: 10 pages, 7 Figures, submitted to MNRAS, acknowledgements section revised

Journal-ref: Mon.Not.Roy.Astron.Soc. 320 (2001) 224

Subjects: Astrophysics (astro-ph)

[306] arXiv:astro-ph/0002306 [pdf, other]

Title: Flash-Heating of Circumstellar Clouds by Gamma Ray Bursts

Charles D. Dermer (NRL), Markus Boettcher (Rice U.)

Comments: 9 pages, 1 figure, submitted to ApJ Letters

Subjects: Astrophysics (astro-ph)

[307] arXiv:astro-ph/0002307 [pdf, other]

Title: The Origin of Cosmic Magnetic Fields

Ola Tornkvist (DAMTP, Cambridge)

Comments: 9 pages, 1 figure, talk presented at the 3rd International Conference on Particle Physics and the Early Universe (COSMO-99), Trieste, Italy, 27 Sept - 3 Oct, 1999, to be published in the proceedings. Added references

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

[308] arXiv:astro-ph/0002308 [pdf, other]

Title: Collisional versus Collisionless Dark Matter

Ben Moore, Sergio Gelato, Adrian Jenkins, F. R. Pearce, Vicent Quilis

Comments: 4 pages, submitted to ApJLetters. Further simulation details at this http URL (this http URL)

Journal-ref: Astrophys.J.535:L21-L24,2000

Subjects: Astrophysics (astro-ph)

[309] arXiv:astro-ph/0002309 [pdf, other]

Title: Formation and evolution of disk galaxies within cold dark matter halos

V. Avila-Reese (1), C. Firmani (1,2), A. Klypin (3), A.V. Kravtsov (3,4) ((1) Instituto de Astronomia, UNAM, Mexico (2) Osservatorio Astronomico di Brera, Italy (3) Astronomy Department, NMSU, USA (4) Astronomy Dept., The Ohio State University, USA)

Comments: 4 pages. To appear in "Cosmic Evolution and Galaxy Formation: Structure, Interactions and Feedback", Eds. this http URL, this http URL, this http URL-Cruz, this http URL, ASP Conf. Series

Journal-ref: ASP Conference Series Vol. 215 (Astron. Soc. Pac., San Francisco), p.31

Subjects: Astrophysics (astro-ph)

[310] arXiv:astro-ph/0002310 [pdf, other]

Title: The Mass-To-Light Function: Antibias and Omega_m

N.A. Bahcall, R. Cen, R. Davé, J.P. Ostriker, Q. Yu (Princeton University Observatory)

Comments: 26 pages, 4 figs, minor changes, to be published in ApJ, Vol.541 (Oct.1, 2000)

Subjects: Astrophysics (astro-ph)

[311] arXiv:astro-ph/0002311 [pdf, other]

Title: On the origin of the color Tully-Fisher and color-magnitude relations of disk galaxies

V. Avila-Reese (1), C. Firmani (1,2) ((1) Instituto de Astronomia, UNAM, Mexico (2) Osservartorio Astronomico di Brera, Italy)

Comments: 1 page. To appear in ``Cosmic Evolution and Galaxy Formation: Structure, Interactions and Feedback'', Eds. this http URL, this http URL, this http URL-Cruz, this http URL, ASP Conf. Series

Journal-ref: ASP Conference Series Vol. 215 (Astron. Soc. Pac., San Francisco), p.35

Subjects: Astrophysics (astro-ph)

[312] arXiv:astro-ph/0002312 [pdf, other]

Title: Gamma-Ray Bursts via the Neutrino Emission from Heated Neutron Stars

Jay D. Salmonson (1), James R. Wilson (1 and 2), Grant J. Mathews (2) ((1) Lawrence Livermore National Laboratory, (2) Notre Dame University)

Comments: Final version. 30 pages, 10 figures, 6 tables, accepted for publication in The Astrophysical Journal

Journal-ref: Astrophys.J. 553 (2001) 471-487

Subjects: Astrophysics (astro-ph)

[313] arXiv:astro-ph/0002313 [pdf, other]

Title: Resolving the extragalactic hard X-ray background

R. F. Mushotzky, L. L. Cowie, A. J. Barger, K. A. Arnaud

Comments: Nature article in press

Subjects: Astrophysics (astro-ph)

[314] arXiv:astro-ph/0002314 [pdf, other]

Title: Detection of Multi-TeV Gamma Rays from Markarian 501 during an Unforeseen Flaring State in 1997 with the Tibet Air Shower Array

M. Amenomori, et al (The Tibet ASGamma Collaboration)

Comments: 9 pages, 7 figures, To appear in ApJ

Subjects: Astrophysics (astro-ph)

[315] arXiv:astro-ph/0002315 [pdf, other]

Title: Perturbative Analysis of Adaptive Smoothing Methods in Quantifying Large-Scale Structure

Naoki Seto

Comments: 42 pages including 9 figure, ApJ 537 in press

Journal-ref: ApJ 538 (2000) 11

Subjects: Astrophysics (astro-ph)

[316] arXiv:astro-ph/0002316 [pdf, other]

Title: Performance Results of the AMS-01 Aerogel Threshold Cherenkov

F. Mayet

Comments: 3 pages, 3 figures, to be published in the proceedings of the XIth Rencontres de Blois (Frontiers of Matter), held in Blois (France), June 27-July 3, 1999

Subjects: Astrophysics (astro-ph)

[317] arXiv:astro-ph/0002317 [pdf, other]

Title: Analytic solutions for coupled linear perturbations

Adi Nusser

Comments: Correction in equation 23

Journal-ref: Mon.Not.Roy.Astron.Soc. 317 (2000) 902

Subjects: Astrophysics (astro-ph)

[318] arXiv:astro-ph/0002318 [pdf, other]

Title: ROSAT HRI catalogue of X-ray sources in the LMC region

Manami Sasaki, Frank Haberl, Wolfgang Pietsch

Comments: 22 pages, 8 figures, 4 tables

Subjects: Astrophysics (astro-ph)

[319] arXiv:astro-ph/0002319 [pdf, other]

Title: X-ray photoionized plasma diagnostics with Helium-like ions. Application to Warm Absorber-Emitter in Active Galactic Nuclei

Delphine Porquet (1,2), Jacques Dubau (3) ((1) DAEC, Observatoire de Paris, Section Meudon, France, (2) CEA/DSM/DAPNIA, Service d'Astrophysique, CEA Saclay, Gif sur Yvette Cedex, France, (3) DARC, Observatoire de Paris, Section Meudon, France)

Comments: 23 pages, 11 figures, 14 tables. A&AS, in press

Subjects: Astrophysics (astro-ph)

[320] arXiv:astro-ph/0002320 [pdf, other]

Title: CHVCs: Galactic Building Blocks at z = 0

Robert Braun, W. Butler Burton

Comments: 6 pages, 2 figues, To appear in "Cosmic Evolution and Galaxy Formation: Structure, Interactions, and Feedback", eds. J. Franco, E. Terlevich, O. Lopez-Cruz, and I. Aretxaga, PASP Conf. Series

Subjects: Astrophysics (astro-ph)

[321] arXiv:astro-ph/0002321 [pdf, other]

Title: Evidence for a Young Stellar Population in NGC 5018

A. J. Leonardi, G. Worthey

Comments: 13 pages, 7 figures (figs 3-7 are color figures), to be published in the May 2000 issue of the Astrophysical Journal

Subjects: Astrophysics (astro-ph)

[322] arXiv:astro-ph/0002322 [pdf, other]

Title: Testing the connection between the X-ray and submillimetre source populations using Chandra

A.C. Fabian, I. Smail, K. Iwasawa, S.W. Allen, A.W. Blain, C.S. Crawford, S. Ettori, R.J. Ivison, R.M. Johnstone, J.-P. Kneib, R.J. Wilman

Comments: Revised version including one improved figure, accepted for publication in MNRAS, 5 pages, 2 figures

Journal-ref: Mon.Not.Roy.Astron.Soc.315:L8,2000

Subjects: Astrophysics (astro-ph)

[323] arXiv:astro-ph/0002323 [pdf, other]

Title: Ages of late spectral type Vega-like stars

Inseok Song, J.-P. Caillault, David Barrado y Navascues, John Stauffer, Sofia Randich

Comments: 6 pages text, 5 figures, to be appeared in the ApJ Letters

Subjects: Astrophysics (astro-ph)

[324] arXiv:astro-ph/0002324 [pdf, other]

Title: High Resolution Spectroscopy of the X-ray Photoionized Wind in Cygnus X-3 with the Chandra High Energy Transmission Grating Spectrometer

Frits Paerels, Jean Cottam, Masao Sako, Duane A. Liedahl, A. C. Brinkman, R. L. J. van der Meer, J. S. Kaastra, P. Predehl

Comments: 11 pages, 3 figures; Accepted for publication in ApJ Letters

Subjects: Astrophysics (astro-ph)

[325] arXiv:astro-ph/0002325 [pdf, other]

Title: Multi-colour PL-relations of Cepheids in the Hipparcos catalogue and the distance to the LMC

M.A.T. Groenewegen, R.D. Oudmaijer

Comments: Accepted by Astronomy and Astrophysics

Subjects: Astrophysics (astro-ph)

[326] arXiv:astro-ph/0002326 [pdf, other]

Title: Study of Multi-muon Events from EAS with the L3 Detector at Shallow Depth Underground

Dimitri Bourilkov (for the L3+C Collaboration)

Comments: 3 pages, 2 figures; presented at the 6th International Workshop on Topics in Astroparticle and Underground Physics, TAUP99, September 6-10, 1999, Paris, France

Journal-ref: Nucl.Phys.Proc.Suppl. 87 (2000) 521-522

Subjects: Astrophysics (astro-ph)

[327] arXiv:astro-ph/0002327 [pdf, other]

Title: The 35-Day Evolution of the Hercules X-1 Pulse Profile: Evidence For A Resolved Inner Disk Occultation of the Neutron Star

D. Matthew Scott, Denis A. Leahy, Robert B. Wilson

Comments: 32 text pages and 11 postscript figures. Submitted to ApJ

Subjects: Astrophysics (astro-ph)

[328] arXiv:astro-ph/0002328 [pdf, other]

Title: An analytic model for the epoch of halo creation

W. J. Percival, L. Miller, J. A. Peacock

Comments: 7 pages, 2 figures, submitted to MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 318 (2000) 273

Subjects: Astrophysics (astro-ph)

[329] arXiv:astro-ph/0002329 [pdf, other]

Title: Emission-Line Properties of 3CR Radio Galaxies III: Origins and Implications of the Velocity Fields

Stefi A. Baum (1), Patrick J. McCarthy (2) ((1) The Space Telescope Science Institute, (2) The Observatories of the Carnegie Institution of Washington)

Comments: 26 pages, 2 tables, 4 postscript figures. To appear in the May 2000 Astronomical Journal

Subjects: Astrophysics (astro-ph)

[330] arXiv:astro-ph/0002330 [pdf, other]

Title: New Dark Matter Physics: Clues from Halo Structure

Craig J. Hogan, Julianne J. Dalcanton (U. Washington)

Comments: Latex, 16 pages, plus 2 figures. Revised version, submitted to Phys. Rev. D., includes fixed typos and new reference information

Journal-ref: Phys.Rev. D62 (2000) 063511

Subjects: Astrophysics (astro-ph)

[331] arXiv:astro-ph/0002331 [pdf, other]

Title: CO on Titan: More Evidence for a Well-Mixed Vertical Profile

M.A. Gurwell (Harvard-Smithsonian Center for Astrophysics), D.O. Muhleman (Division of Geological and Planetary Sciences, Caltech)

Comments: Submitted to as a Note to Icarus. Uses this http URL under Latex, 6 text pages, 2 figs (includes with psfig)

Subjects: Astrophysics (astro-ph)

[332] arXiv:astro-ph/0002332 [pdf, other]

Title: Probing black hole X-ray binaries with the Keck telescopes

Emilios T. Harlaftis, Alexei V. Filippenko

Comments: 7 pages, 4 figures, SPIE Symposium 4005, in press

Subjects: Astrophysics (astro-ph)

[333] arXiv:astro-ph/0002333 [pdf, other]

Title: A Close Separation Double Quasar Lensed by a Gas-Rich Galaxy

Michael D. Gregg (1,2), Lutz Wisotzki (3,4), Robert Becker (1,2), Jose Maza (5), Paul Schechter (4), Richard White (6), Michael S. Brotherton (7), Joshua N. Winn (4) ((1) University of California, Davis, (2) IGPP/LLNL, (3) Hamburger Sternwarte, Germany, (4) MIT, (5) Universidad de Chile, (6) STScI, (7) KPNO/NOAO)

Comments: AASTEX preprint format, 11 pages, 3 figures; accepted by the Astronomical Journal; replaced with revised, accepted version

Subjects: Astrophysics (astro-ph)

[334] arXiv:astro-ph/0002334 [pdf, other]

Title: Distance-Redshift in Inhomogeneous FLRW

R. Kantowski, J.K. Kao, R. C. Thomas

Comments: 22 pages, 3 figures

Subjects: Astrophysics (astro-ph)

[335] arXiv:astro-ph/0002335 [pdf, other]

Title: Discovery of an Obscured Broad Line Region in the High Redshift Radio Galaxy MRC 2025-218

James E. Larkin (UCLA), Ian S. McLean (UCLA), James R. Graham (UC Berkeley), E. E. Becklin (UCLA), Donald F. Figer (STSci), Andrea M. Gilbert (UC Berkeley), N. A. Levenson (UC Berkeley, John's Hopkins), Harry I. Teplitz (Goddard SFC), Mavourneen K. Wilcox (UCLA), Tiffany M. Glassman (UCLA)

Comments: 4 pages, Latex, 4 figures, Accepted for publication in ApJ Letters

Subjects: Astrophysics (astro-ph)

[336] arXiv:astro-ph/0002336 [pdf, other]

Title: Constraints on Cosmological Parameters from Future Galaxy Cluster Surveys

Zoltan Haiman (Princeton Univ and Fermilab), Joseph J. Mohr, Gilbert P. Holder (U. of Chicago)

Comments: ApJ, revised version. Expanded discussion of systematics; Press-Schechter mass function replaced by fit from simulations

Journal-ref: Astrophys.J.553:545,2000

Subjects: Astrophysics (astro-ph)

[337] arXiv:astro-ph/0002337 [pdf, other]

Title: Nucleosynthesis in Chandrasekhar Mass Models for Type Ia Supernovae and Constraints on Progenitor Systems and Burning-Front Propagation

K.Iwamoto, F.Brachwitz, K.Nomoto, N.Kishimoto, H.Umeda, W.R.Hix, F.-K.Thielemann

Journal-ref: Astrophys.J.Suppl. 125 (2000) 439-462

Subjects: Astrophysics (astro-ph)

[338] arXiv:astro-ph/0002338 [pdf, other]

Title: Discovery of a Color-Selected Quasar at z=5.50

Daniel Stern (1), Hyron Spinrad (2), Peter Eisenhardt (1), Andrew J. Bunker (3), Steve Dawson (2), S. A. Stanford (4 and 5), Richard Elston (6) ((1) JPL/Caltech, (2) UC-Berkeley, (3) IoA, Cambridge, (4) UC-Davis, (5) IGPP/LLNL, and (6) Florida)

Comments: 9 pages, 2 figures; to appear in the The Astrophysical Journal Letters

Journal-ref: Astrophys.J. 533 (2000) L75-L78

Subjects: Astrophysics (astro-ph)

[339] arXiv:astro-ph/0002339 [pdf, other]

Title: Runaway of Line-Driven Winds Towards Critical and Overloaded solutions

Achim Feldmeier, Isaac Shlosman

Comments: Latex, 2 postscript figures Astrophysical Journal Letters, in press

Subjects: Astrophysics (astro-ph)

[340] arXiv:astro-ph/0002340 [pdf, other]

Title: The Toronto Red-Sequence Cluster Survey: First Results

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

Comments: 4 pages, 5 figures, to be published in "Cosmic Evolution and Galaxy Formation: Structure, Interactions and Feedback", ASP Conference Series

Subjects: Astrophysics (astro-ph)

[341] arXiv:astro-ph/0002341 [pdf, other]

Title: Variable stars in the field of the globular cluster E3

B. J. Mochejska, J. Kaluzny, I. Thompson

Comments: 7 pages, Latex, 3 Postscript figures, submitted to Acta Astronomica

Journal-ref: ActaAstron.50:105,2000

Subjects: Astrophysics (astro-ph)

[342] arXiv:astro-ph/0002342 [pdf, other]

Title: The discovery of a low mass, pre-main-sequence stellar association around gamma Velorum

M. Pozzo, R.D. Jeffries, T. Naylor, E.J. Totten, S. Harmer, M. Kenyon (Department of Physics, Keele University, UK)

Comments: Monthly Notices of the Royal Astronomical Society, Letters - in press

Subjects: Astrophysics (astro-ph)

[343] arXiv:astro-ph/0002343 [pdf, other]

Title: Subaru Observations for the K-band Luminosity Distribution of Galaxies in Clusters near to 3C 324 at z$\sim$1.2

Masaru Kajisawa, Toru Yamada, Ichi Tanaka, Toshinori Maihara, Fumihide Iwamuro, Hiroshi Terada, Miwa Goto, Kentaro Motohara, Hirohisa Tanabe, Tomoyuki Taguchi, Ryuji Hata, Masanori Iye, Masatoshi Imanishi, Yoshihiro Chikada, Chris Simpson, Toshiyuki Sasaki, George Kosugi, Tomonori Usuda, Tomio Kanzawa, Tomio Kurakami

Comments: 12 pages, 9 figures, accepted for publication in PASJ

Subjects: Astrophysics (astro-ph)

[344] arXiv:astro-ph/0002344 [pdf, other]

Title: Color-Magnitude Sequence in the Clusters at z$\sim$1.2 near the Radio Galaxy 3C 324

Masaru Kajisawa, Toru Yamada, Ichi Tanaka, Toshinori Maihara, Fumihide Iwamuro, Hiroshi Terada, Miwa Goto, Kentaro Motohara, Hirohisa Tanabe, Tomoyuki Taguchi, Ryuji Hata, Masanori Iye, Masatoshi Imanishi, Yoshihiro Chikada, Michitoshi Yoshida, Chris Simpson, Toshiyuki Sasaki, George Kosugi, Tomonori Usuda, Kazuhiro Sekiguchi

Comments: 16 pages, 10 figures, accepted for publication in PASJ

Subjects: Astrophysics (astro-ph)

[345] arXiv:astro-ph/0002345 [pdf, other]

Title: X-ray absorption lines in the Seyfert 1 galaxy NGC 5548 discovered with Chandra-LETGS

J.S. Kaastra, R. Mewe, D.A. Liedahl, S. Komossa, A.C. Brinkman

Comments: 4 pages, 3 figures, accepted for publication in Astronomy & Astrophysics, Letters

Subjects: Astrophysics (astro-ph)

[346] arXiv:astro-ph/0002346 [pdf, other]

Title: Cyclotron lines in X-ray pulsars as a probe of relativistic plasmas in superstrong magnetic fields

D. Dal Fiume (1), Filippo Frontera (2), Nicola Masetti (1), Mauro Orlandini (1), Eliana Palazzi (1), Stefano Del Sordo (3), Andrea Santangelo (3), Alberto Segreto (3), Tim Oosterbroek (4), Arvind N. Parmar (4) ((1) TeSRE/CNR, (2) TeSRE/CNR and Universita' di Ferrara, (3) IFCAI/CNR, (4) ESA/SSD)

Comments: 5 pages, 2 figures, uses this http URL, to appear in Proceeding of Fifth Compton Symposium

Subjects: Astrophysics (astro-ph)

[347] arXiv:astro-ph/0002347 [pdf, other]

Title: Electron acceleration due to high frequency instabilities at supernova remnant shocks

M. E. Dieckmann, K. G. McClements, S. C. Chapman, R. O. Dendy, L. O'C. Drury

Comments: 36 pages, 13 figures

Journal-ref: Astronomy and Astrophysics 356, 377 (2000)

Subjects: Astrophysics (astro-ph)

[348] arXiv:astro-ph/0002348 [pdf, other]

Title: ASCA and BeppoSAX observations of the peculiar X-ray source 4U1700+24/HD154791

D. Dal Fiume (1), N. Masetti (1), C. Bartolini (2), S. Del Sordo (3), F. Frontera (4), A. Guarnieri (2), M. Orlandini (1), E. Palazzi (1), A. Parmar (5), A. Piccioni (2), A. Santangelo (3), A. Segreto (3) ((1) TeSRE/CNR, (2) Universita' di Bologna, (3) IFCAI/CNR, (4) TeSRE/CNR and Universita' di Ferrara, (5) ESA/SSD)

Comments: 5 pages, 4 figures, uses this http URL, to appear in Proceedings of the Fifth Compton Symposium

Subjects: Astrophysics (astro-ph)

[349] arXiv:astro-ph/0002349 [pdf, other]

Title: Mode identification from line-profile variations

Conny Aerts, Laurent Eyer (Katholieke Universiteit Leuven)

Comments: 27 pages, 13 figures. Invited review, in ASP Conference Series, vol. N, 2000: "6th Vienna workshop on delta Scuti and related stars", M. Breger and M.H. Montgomery eds

Subjects: Astrophysics (astro-ph)

[350] arXiv:astro-ph/0002350 [pdf, other]

Title: The Black Hole Mass - Galaxy Age Relation

M.R. Merrifield (University of Nottingham), D.A. Forbes (University of Birmingham, Swinburne University), A.I. Terlevich (University of Birmingham)

Comments: 4 pages, 1 figure, uses this http URL. Accepted for publication in MNRAS

Subjects: Astrophysics (astro-ph)