Astrophysics

Authors and titles for October 1996

[201] arXiv:astro-ph/9610201 [pdf, other]

Title: Primordial Magnetic Fields from Cosmological First Order Phase Transitions

Guenter Sigl, Angela Olinto (Univ. of Chicago), Karsten Jedamzik (Lawrence Livermore)

Comments: 9 latex pages, no figures, uses revtex style in two column format, submitted to Phys. Rev. D

Journal-ref: Phys.Rev. D55 (1997) 4582-4590

Subjects: Astrophysics (astro-ph)

[202] arXiv:astro-ph/9610202 [pdf, other]

Title: Homogeneous Velocity-Distance Data for Peculiar Velocity Analysis. III. The Mark III Catalog of Galaxy Peculiar Velocities

Jeffrey A. Willick (Stanford University)Stephane Courteau (NOAO)S.M. Faber (UC Santa Cruz)David Burstein (Arizona State University)Avishai Dekel (Hebrew University)Michael A. Strauss (Princeton University)

Comments: 47 pages, 4 encapsulated postscript figures; 7 tables, of which 4 (Tables 2,4,5, and 7) are separate. Accepted for publication in ApJ Supplements. Data available at this http URL

Journal-ref: Astrophys.J.Suppl. 109 (1997) 333

Subjects: Astrophysics (astro-ph)

[203] arXiv:astro-ph/9610203 [pdf, other]

Title: Ledoux-Convection in Protoneutron Stars --- a Clue to Supernova Nucleosynthesis?

Wolfgang Keil, H.-Thomas Janka, Ewald M"uller (Max-Planck-Institut f"ur Astrophysik, Garching, Germany)

Comments: 17 pages, LaTeX, 8 postscript figures, uses this http URL. To appear in ApJ 473 (Letters), 1996 December 10

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

[204] arXiv:astro-ph/9610204 [pdf, other]

Title: ASCA and ROSAT X-ray Spectra of High-Redshift Radio-Loud Quasars

M. Cappi (RIKEN-Japan+ITeSRE-Bo), M. Matsuoka (RIKEN-Japan), A. Comastri (Oss. di Bologna), W. Brinkmann (MPE), M. Elvis (CfA), G.G.C. Palumbo (Univ. of Bologna+ITeSRE-Bo), C. Vignali (Univ. of Bologna)

Comments: Accepted for publication in The Astrophysical Journal, April 1997 issue; 22 pages of text prepared with AAS latex [aaspptwo] + 6 of figures (.ps)

Subjects: Astrophysics (astro-ph)

[205] arXiv:astro-ph/9610205 [pdf, other]

Title: Leptonic Photons and Nucleosynthesis

J. A. Grifols, E. Masso

Comments: 4 pages, LaTeX. Full postscript file available via anonymous ftp at this ftp URL

Journal-ref: Phys.Lett. B396 (1997) 201-202

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

[206] arXiv:astro-ph/9610206 [pdf, other]

Title: The Virgo consortium: simulations of dark matter and galaxy clustering

The Virgo Consortium: A. Jenkins, C.S. Frenk, F.R. Pearce, P.A. Thomas, R. Hutchings, J.M. Colberg, S.D.M. White, H.M.P. Couchman, J.A. Peacock, G.P. Efstathiou, A.H. Nelson

Comments: 9 pages, 4 postscript figures included. To appear in "Dark and Visible Matter in Galaxies and Cosmological Implications", eds M. Persic and P. Salucci, PASP conference Series. Postscript version also available at this ftp URL

Subjects: Astrophysics (astro-ph)

[207] arXiv:astro-ph/9610207 [pdf, other]

Title: Detailed lensing properties of the MS2137-2353 core and reconstruction of sources

F. Hammer, P. Teyssandier, E. J. Shaya, I. M. Gioia, G. A. Luppino, O. Le Fèvre

Comments: 12 pages,Latex, available at this ftp URL , Submitted to ApJ Letter

Subjects: Astrophysics (astro-ph)

[208] arXiv:astro-ph/9610208 [pdf, other]

Title: The long-term optical behavior of MRK421

F. K. Liu (SISSA, Trieste, Italy), B.F. Liu, G.Z. Xie (Yunnan Observatory, China)

Comments: Tex, 14 pages, 5 Postscript figures. Accepted for publication in A&A Supplement Series

Subjects: Astrophysics (astro-ph)

[209] arXiv:astro-ph/9610209 [pdf, other]

Title: Resonant Neutrino Spin-Flavor Precession and Supernova Nucleosynthesis and Dynamics

H. Nunokawa, Y.-Z. Qian, G. M. Fuller

Comments: Latex file, 33 pages including 11 figures, uses this http URL, minor changes about wording and clarification of the text, to be published in Phys. Rev. D

Journal-ref: Phys.Rev. D55 (1997) 3265-3275

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

[210] arXiv:astro-ph/9610210 [pdf, other]

Title: Gamma-Ray Pulsars and Massive Stars in the Solar Neighborhood

I.-A. Yadigaroglu, Roger W. Romani (Stanford University)

Comments: 9 pages, 5 figures, uses this http URL (included). To appear in Ap.J. See this http URL

Subjects: Astrophysics (astro-ph)

[211] arXiv:astro-ph/9610211 [pdf, other]

Title: Optical Observations of GRO J1655-40 in Quiescence I: A Precise Mass for the Black Hole Primary

Jerome A. Orosz (The Pennsylvania State University), Charles D. Bailyn (Yale)

Comments: 30 pages, 12 figures, LaTeX (uses this http URL), to appear in ApJ, vol. 474 (March 10, 1997)

Journal-ref: Astrophys.J. 477 (1997) 876

Subjects: Astrophysics (astro-ph)

[212] arXiv:astro-ph/9610212 [pdf, other]

Title: Dual Nature of Hard X-Ray Outbursts from the Superluminal X-Ray Transient Source GRO J1655-40

M. Tavani (Columbia), A. Fruchter (STScI), S.N. Zhang (USRA-MSFC), B.A. Harmon (MSFC), R.N. Hjellming (NRAO), M.P. Rupen (NRAO), C. Bailyn (Yale), M. Livio (STScI)

Comments: 11 pages, one figure included as postscript file. One additional figure available on request from tavani@meleas.this http URL, to appear in Astrophysical Journal Letters

Subjects: Astrophysics (astro-ph)

[213] arXiv:astro-ph/9610213 [pdf, other]

Title: Distant Companions and Planets around Millisecond Pulsars

K. J. Joshi, F. A. Rasio

Comments: 30 pages, Latex, 10 Postscript figures, uses this http URL. ApJ submitted. Also available at this http URL

Subjects: Astrophysics (astro-ph)

[214] arXiv:astro-ph/9610214 [pdf, other]

Title: Numerical Models of Protoneutron Stars and Type-II Supernovae --- Recent Developments

H.-Thomas Janka (Max-Planck-Institut f"ur Astrophysik, Garching, Germany)

Comments: 24 pages, TeX, 12 postscript figures, uses this http URL. Review article for the proceedings of the Summer School on Physics with Neutrinos, Zuoz (Engadin), Switzerland, August 4-10, 1996

Subjects: Astrophysics (astro-ph)

[215] arXiv:astro-ph/9610215 [pdf, other]

Title: Inflation, structure formation and dark matter

Andrew R Liddle, Pedro T P Viana

Comments: 10 pages LaTeX file with eight figures incorporated using epsf. To appear, proceedings of `Aspects of dark matter in astro- and particle physics', Heidelberg, September 1996

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

[216] arXiv:astro-ph/9610216 [pdf, other]

Title: Dark Matter in Low Surface Brightness Galaxies

W.J.G. de Blok (Kapteyn Institute, Groningen, Netherlands), Stacy McGaugh (Dept. of Terrestrial Magnetism, Washington DC)

Comments: 8 pages, uses this http URL. To be published in ``Dark and Visible Matter in Galaxies and Cosmological Implications'', Sesto Pusteria, Italy, 2-5 July, 1996,PASP Conference Series, eds this http URL and this http URL. Also available at this http URL

Subjects: Astrophysics (astro-ph)

[217] arXiv:astro-ph/9610217 [pdf, other]

Title: Bringing light to galaxy formation simulations

Sergio Gelato, Fabio Governato

Comments: 10 pages, LaTeX, 8 ps figures, uses this http URL. Slightly extended version of contribution to "Dark and visible matter in galaxies", eds M. Persic and P. Salucci, ASP Conference Series. PostScript also available at this http URL

Subjects: Astrophysics (astro-ph)

[218] arXiv:astro-ph/9610218 [pdf, other]

Title: Galaxy evolution at low redshift? II. Number counts and optical identifications of faint IRAS sources

E. Bertin (IAP, Sterrewacht Leiden), M. Dennefeld (IAP), M. Moshir (IPAC)

Comments: 13 pages, LaTeX, this http URL, accepted in A&A

Subjects: Astrophysics (astro-ph)

[219] arXiv:astro-ph/9610219 [pdf, other]

Title: Nongaussian Isocurvature Perturbations from Inflation

A. Linde, V. Mukhanov

Comments: Few misprints are corrected; results are not changed. It is noted that our results for the most natural range of parameters correspond to the spectral index of isothermal perturbations n ~1.6

Journal-ref: Phys.Rev.D56:535-539,1997

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

[220] arXiv:astro-ph/9610220 [pdf, other]

Title: Primordial Cosmological Fluctuations on Galactic Scales

Claudio Firmani, Xavier Hernández, Vladimir Avila-Reese (Centro de Instrumentos, UNAM, Instituto de Astronomia, UNAM, )

Comments: Presented at the Workshop "Observational Cosmology:From Galaxies to Galaxy Systems" (Italy, July 1995). Accepted in ApL&C (November 1995) 8 pages, 2 postscript figures, Latex, uses this http URL

Journal-ref: Astrophys.Lett.Commun.36:349,1997

Subjects: Astrophysics (astro-ph)

[221] arXiv:astro-ph/9610221 [pdf, other]

Title: Cosmological Neutrino Signatures for Grand Unification Scale Physics

Guenter Sigl, Sangjin Lee, David N. Schramm (Univ. of Chicago), Paolo Coppi (Yale Univ.)

Comments: 5 latex pages, 1 postscript figure included, uses revtex style in two column format and this http URL, submitted to Phys. Lett. B

Journal-ref: Phys.Lett. B392 (1997) 129-134

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

[222] arXiv:astro-ph/9610222 [pdf, other]

Title: Lens reconstruction and source redshift distribution

Pierre-Yves Longaretti (Observatoire de Grenoble, France)

Comments: 4 pages, LaTex, Springer-Verlag's LaTeX Astronomy & Astrophysics macro package, submitted to A&A Letters

Subjects: Astrophysics (astro-ph)

[223] arXiv:astro-ph/9610223 [pdf, other]

Title: Non-Gaussian Isocurvature Perturbations From Goldstone Modes Generated During Inflation

Martin Bucher (Princeton and SUNY Stony Brook), Yong Zhu (Princeton)

Comments: TEX with phyzzx macro package and this http URL. One postscript figure. Some missing references have been added in revised version

Journal-ref: Phys.Rev. D55 (1997) 7415-7422

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

[224] arXiv:astro-ph/9610224 [pdf, other]

Title: A Stochastic Approach to Chemical Evolution

Craig J. Copi (University of Chicago)

Comments: 34 pages + 16 figures included with epsf and rotate styles, LaTeX2.09. Also available from this ftp URL

Journal-ref: Astrophys.J. 487 (1997) 704

Subjects: Astrophysics (astro-ph)

[225] arXiv:astro-ph/9610225 [pdf, other]

Title: GHRS Observations of the Lyman alpha Forest

Simon L. Morris (HIA/NRC)

Comments: 11 pages, 6 postscript figures, uses this http URL, to appear in the GHRS Science Symposium proceedings

Subjects: Astrophysics (astro-ph)

[226] arXiv:astro-ph/9610226 [pdf, other]

Title: Large Scale Power Spectrum from Peculiar Velocities Via Likelihood Analysis

S. Zaroubi (UCB), I. Zehavi (HU), A. Dekel (HU, UCB), Y. Hoffman (HU), T. Kolatt (UCSC)

Comments: 19 pages, 8 figures, 2 tables. Accepted for publication in The Astrophysical Journal

Journal-ref: Astrophys.J. 486 (1997) 21

Subjects: Astrophysics (astro-ph)

[227] arXiv:astro-ph/9610227 [pdf, other]

Title: GHRS Monitoring of the Outflowing Material in NGC 4151

Ray J. Weymann (Carnegie Observatories), Simon L. Morris, Meghan E. Gray, John B. Hutchings (HIA/NRC)

Comments: 4 pages, 3 postscript figures, to appear in the GHRS Science Symposium Proceedings

Subjects: Astrophysics (astro-ph)

[228] arXiv:astro-ph/9610228 [pdf, other]

Title: Gravitational Instability in Collisionless Cosmological Pancakes

Azita Valinia (1 and 2), Paul R. Shapiro (2), Hugo Martel (2), Ethan T. Vishniac (2) ((1) NASA/Goddard Space Flight Center (2) The University of Texas at Austin)

Comments: To appear in the Astrophysical Journal (1997), accepted for publication 10/10/96, single postscript file, 61 pages, 19 figures

Journal-ref: Astrophys.J. 479 (1997) 46-69

Subjects: Astrophysics (astro-ph)

[229] arXiv:astro-ph/9610229 [pdf, other]

Title: Evolution of Galactic Globular Clusters

Chigurupati Murali (CITA), Martin D. Weinberg (UMass-Amherst)

Comments: latex, 15 pages, 8 figures, submitted to Monthly Notices

Subjects: Astrophysics (astro-ph)

[230] arXiv:astro-ph/9610230 [pdf, other]

Title: QSO Absorbing Galaxies at z<~1: Deep Imaging and Spectroscopy in the Field of 3C 336

C. Steidel, M. Dickinson, D. Meyer, K. Adelberger, K. Sembach

Comments: 32 pages latex (AAS v4.0 style). 8 Postscript figures (including HST plate) available at this ftp URL . Submitted to ApJ

Subjects: Astrophysics (astro-ph)

[231] arXiv:astro-ph/9610231 [pdf, other]

Title: Small groups of Galaxies as Cosmological Clocks

P. Tozzi, F. Governato, A. Cavaliere

Comments: 7 pages, 5 postscript figures included. To appear in "Dark and Visible Matter in Galaxies and Cosmological Implications", eds M. Persic and P. Salucci, PASP conference Series. Postscript version also available at this http URL

Subjects: Astrophysics (astro-ph)

[232] arXiv:astro-ph/9610232 [pdf, other]

Title: Prospects for Cosmology with Cluster Mass Profiles

Mary Crone, Fabio Governato, Joachim Stadel, Thomas Quinn

Comments: 11 pages, 2 postscript figures included. Submitted to ApJL. .ps version also available at this http URL

Subjects: Astrophysics (astro-ph)

[233] arXiv:astro-ph/9610233 [pdf, other]

Title: Through a Lens Darkly: Evidence for Dusty Gravitational Lenses

Sangeeta Malhotra (IPAC), James E. Rhoads (KPNO), Edwin L. Turner (Princeton)

Comments: Sumitted to MNRAS, 6 pages, 3 figures. Also available at this http URL

Subjects: Astrophysics (astro-ph)

[234] arXiv:astro-ph/9610234 [pdf, other]

Title: Anisotropies in the Cosmic Microwave Background: Theoretical Foundations

Ruth Durrer

Comments: Lecture given at the Journee Relativiste '96, Report Uni Geneve Phys. Theo. 10-954

Journal-ref: Helv.Phys.Acta 69:417-433,1996

Subjects: Astrophysics (astro-ph)

[235] arXiv:astro-ph/9610235 [pdf, other]

Title: Structural classification of galaxies in clusters

Stefano Andreon (IFCTR-CNR, Milan, Italy and Obs. Midi-Pyrenees, Toulouse, France), Emmanuel Davoust (Obs. Midi-Pyrenees, Toulouse, France)

Comments: 10 pages with 1 figure and 7 tables, A&A Tex macro, A&A in press

Subjects: Astrophysics (astro-ph)

[236] arXiv:astro-ph/9610236 [pdf, other]

Title: Soft X-ray background fluctuations and large-scale structure in the Universe

F.J. Carrera (IFCA), A.C. Fabian (IoA), X. Barcons (IFCA)

Comments: 10 pages, LaTeX file, this http URL and 7 postscript figures. To appear in MNRAS. Fig. 7 replaced, some references improved, a few corrections to the text

Subjects: Astrophysics (astro-ph)

[237] arXiv:astro-ph/9610237 [pdf, other]

Title: X-Ray Emission of Gamma-Ray Bursts

M. Tavani (Columbia University)

Comments: 18 pages, 5 figures included as postscript files. Astrophysical Journal, in press, vol. 474 (10 April 1997)

Subjects: Astrophysics (astro-ph)

[238] arXiv:astro-ph/9610238 [pdf, other]

Title: A Study of External Galaxies Detected by COBE-DIRBE

Sten Odenwald, Jeffrey Newmark, George Smoot

Comments: Plain LaTex, 11pt, 14 pages, 2 figures, 4 tables

Subjects: Astrophysics (astro-ph)

[239] arXiv:astro-ph/9610239 [pdf, other]

Title: ROSAT observations of A0538--66 during quiescence

Sergio Campana (Osservatorio astronomico di Brera, Italy)

Comments: 5 pages + 1 figure, LaTex, Springer-Verlag's A&A macro package + s_tables macro (included). Accepted for publication in A&A Main Journal

Subjects: Astrophysics (astro-ph)

[240] arXiv:astro-ph/9610240 [pdf, other]

Title: ISOCAM Observations of NGC 6946: Mid-IR Structure

S. Malhotra, G. Helou, D. van Buren, M. Kong, C. A. Beichman (IPAC), H. Dinerstein (U. Texas), D. J. Hollenbach (U. Wyoming), D. A. Hunter (Lowell Observatory), K. Y. Lo (U. Illinois), S. Lord, N. Lu (IPAC), R. H. Rubin (NASA-ARC), G. Stacey (Cornell University), H. Thronson (U. Wyoming, NASA HQ), M. W. Werner (JPL)

Comments: 4 page, 4 figures. To appear in Astronomy and Astrophysics. Also available at this http URL

Subjects: Astrophysics (astro-ph)

[241] arXiv:astro-ph/9610241 [pdf, other]

Title: The Mid-Infrared Color of NGC 6946

G. Helou, S. Malhotra, C. A. Beichman (IPAC), H. Dinerstein (U. Texas), D.J. Hollenbach (U. Wyoming), D. A. Hunter (Lowell Observatory), K. Y. Lo (U. Illinois), S. Lord, N. Lu (IPAC), R. H. Rubin (NASA-ARC), G. Stacey (Cornell University), H. Thronson (U. Wyoming, NASA HQ), M. W. Werner (JPL)

Comments: 4 pages, 3 figures. To appear in Astronomy and Astrophysics, also available at this http URL

Subjects: Astrophysics (astro-ph)

[242] arXiv:astro-ph/9610242 [pdf, other]

Title: An ISOPHOT of the disk of galaxy NGC 6946: 60 micron infrared and radio continuum correlation

N. Y. Lu, G. Helou, R. Tuffs, C. Xu, S. Malhotra, M. W. Werner (JPL), H. Thronson (U. Wyoming, NASA HQ)

Comments: 4 pages, to appear in Astronomy and Astrophysics. Also available at this http URL

Subjects: Astrophysics (astro-ph)

[243] arXiv:astro-ph/9610243 [pdf, other]

Title: The Near Infrared NaI Doublet Feature in M Stars

Ricardo P. Schiavon, Beatriz Barbuy, Silvia C.F. Rossi, Andre Milone (Instituto Astronomico Geofisico - Universidade de Sao Paulo, Brazil)

Comments: 9 pages, (TeX file) + 7 Figures in Postscript format. Accepted for publication in The Astrophysical Journal

Subjects: Astrophysics (astro-ph)

[244] arXiv:astro-ph/9610244 [pdf, other]

Title: Comment on a paper by M. A. Bautista ``Atomic data from the Iron Project. XVI. Photoionization cross sections and oscillator strengths for Fe V''

D. A. Verner, D. G. Yakovlev, I. M. Band, M. B. Trzhaskovskaya

Comments: 1 page, latex uses this http URL style file. Submitted to Astron. Astrophys. Suppl

Subjects: Astrophysics (astro-ph)

[245] arXiv:astro-ph/9610245 [pdf, other]

Title: Hydrodynamical Studies of Wind Accretion Onto Compact Objects: Two-Dimensional Calculations

J. S. Benensohn (1), D. Q. Lamb (1), R. E. Taam (2) ((1) University of Chicago, (2) Northwestern University)

Comments: 16 pages, PostScript; figures available via anonymous ftp to this http URL in /pub/astro/jeffb/wind2d; mpeg movies available at this http URL to be published in Astrophysical Journal (submitted 9/96, accepted 10/96)

Subjects: Astrophysics (astro-ph)

[246] arXiv:astro-ph/9610246 [pdf, other]

Title: Bloated Stars as AGN Broad Line Clouds: The Emission Lines Response to Continuum Variations

Tal Alexander (Tel Aviv University)

Comments: 6 pages with 4 figures, LaTeX using this http URL and this http URL, to appear in MNRAS

Subjects: Astrophysics (astro-ph)

[247] arXiv:astro-ph/9610247 [pdf, other]

Title: Diffusion in momentum space as a picture of second-order Fermi acceleration

M. Ostrowski (1,2), G. Siemieniec-Oziȩbło (1) (1 - Astronomical Observatory of the Jagiellonian University, Cracow; 2 - Max-Planck-Institut fuer Radioastronomie, Bonn)

Comments: LaTex, 9 pages; to be published in Astroparticle Physics

Journal-ref: Astropart.Phys.6:271-278,1997

Subjects: Astrophysics (astro-ph)

[248] arXiv:astro-ph/9610248 [pdf, other]

Title: Gravitational Lensing of the X-Ray Background by Clusters of Galaxies

Alexandre Refregier (1), Abraham Loeb (2) ((1) Columbia University, (2) Harvard)

Comments: 41 LaTeX pages, 11 postscript figures, 1 table, in AASTeX v4.0 format. To appear in ApJ, April 1, 1997, Vol. 478

Subjects: Astrophysics (astro-ph)

[249] arXiv:astro-ph/9610249 [pdf, other]

Title: The Flattened Dark Matter Halo of NGC 4244

Rob P. Olling (University of Southampton)

Comments: 8 pages LaTeX, including 3 figures. Uses this http URL and this http URL. To appear in "Dark and Visible Matter in Galaxies and Cosmological Implications," eds. M. Persic and P. Salucci, A.S.P. Conference Series. 1997

Subjects: Astrophysics (astro-ph)

[250] arXiv:astro-ph/9610250 [pdf, other]

Title: Are Standard Solar Models Reliable?

John N. Bahcall, M. H. Pinsonneault, Sarbani Basu, J. Christensen-Dalsgaard

Comments: 4 pages, latex file. Revised numbers for Table 1. To appear in Physical Review Letters

Journal-ref: Phys.Rev.Lett. 78 (1997) 171-174

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