Astrophysics

Authors and titles for April 2003

[401] arXiv:astro-ph/0304401 [pdf, other]

Title: Lens or Binary? Chandra Observations of the Wide Separation Broad Absorption Line Quasar Pair UM425

T. L. Aldcroft, P. J. Green

Comments: 13 pages, 9 figures, Accepted for publication in the Astrophysical Journal

Journal-ref: Astrophys.J. 592 (2003) 710-720

Subjects: Astrophysics (astro-ph)

[402] arXiv:astro-ph/0304402 [pdf, other]

Title: Two new bright Ae stars

D.N.Monin, G.A.Wade, S.N.Fabrika

Comments: 6 pages,3 figures, submitted to A&A

Journal-ref: Astron.Astrophys. 411 (2003) 197-202

Subjects: Astrophysics (astro-ph)

[403] arXiv:astro-ph/0304403 [pdf, other]

Title: The Kinematics and Physical Conditions of the Ionized Gas in NGC 4593 from Chandra High-Energy Grating Spectroscopy

B. McKernan, T. Yaqoob, I. M. George, T. J. Turner

Comments: ApJ accepted. 44 pages, 13 figs (5 colour). Abstract abridged

Journal-ref: Astrophys.J. 593 (2003) 142

Subjects: Astrophysics (astro-ph)

[404] arXiv:astro-ph/0304404 [pdf, other]

Title: Color Gradients in Early-Type Galaxies in ABELL 2199

Naoyuki Tamura (1), Kouji Ohta (2) ((1)University of Durham, (2)Kyoto University)

Comments: 26 pages, 32 figures in jpeg format, accepted for publication in The Astronomical Journal. A version with all figures with higher quality in the gzipped postscript file is available from this http URL

Journal-ref: Astron.J. 126 (2003) 596

Subjects: Astrophysics (astro-ph)

[405] arXiv:astro-ph/0304405 [pdf, other]

Title: The Optical Emission from Gamma-ray Quasars

Matthew Whiting (1), Petra Majewski (2), Rachel Webster (2) ((1) University of New South Wales, (2) University of Melbourne)

Comments: 12 pages, 3 figures, accepted for publication in P.A.S.A; minor typos corrected

Subjects: Astrophysics (astro-ph)

[406] arXiv:astro-ph/0304406 [pdf, other]

Title: Widespread acetaldehyde near the Galactic Centre

Jayaram N. Chengalur, Nissim Kanekar

Comments: accepted for publication in A&A (letters)

Journal-ref: Astron.Astrophys. 403 (2003) L43-L46

Subjects: Astrophysics (astro-ph)

[407] arXiv:astro-ph/0304407 [pdf, other]

Title: The origin of X-ray emission of two distant (z>1) cluster candidate with XMM-Newton

D.M. Neumann (1), M. Arnaud (1), C. Benoist (2), L. da Costa (3), H.E. Jørgensen (4), L.F. Olsen (4), S. Bardelli (5), E. Zucca (5), S. Arnouts (6), A. Biviano (7), M. Ramella (7) ((1) CEA/Saclay DSM/DAPNIA/SAp, France; (2) Observatoire de la Côte d'Azur, France; (3) ESO, Garching, Germany; (4) Astronomical Observatory Copenhagen, Denmark; (5) INAF Osservatorio Astronomico di Bologna, Italy; (6) Laboratoire d'Astrophysique de Marseille, France; (7) INAF - Osservatorio Astronomico di Trieste, Italy)

Comments: Accepted for publication in A&A, 8 pages, 4 figures, figure 1 submitted as jpeg file

Journal-ref: Astron.Astrophys. 406 (2003) 789-796

Subjects: Astrophysics (astro-ph)

[408] arXiv:astro-ph/0304408 [pdf, other]

Title: Clues on the evolution of the Carina dwarf spheroidal galaxy from the color distribution of its red giant stars

L. Rizzi (1), E. V. Held (1), G. Bertelli (2), I. Saviane (3) ((1) INAF, Osservatorio Astronomico di Padova, Italy, (2) Istituto di Astrofisica Spaziale e Fisica Cosmica, CNR, Italy, (3) European Southern Observatory, Chile)

Comments: 4 pages, 3 figures, accepted for publication in the Astrophysical Journal Letters

Journal-ref: Astrophys.J. 589 (2003) L85-L88

Subjects: Astrophysics (astro-ph)

[409] arXiv:astro-ph/0304409 [pdf, other]

Title: A Census of the Young Cluster IC 348

K. L. Luhman (CfA), John R. Stauffer, A. A. Muench (SIRTF Science Center), G. H. Rieke (Arizona), E. A. Lada (Florida), J. Bouvier (Grenoble), C. J. Lada (CfA)

Comments: 47 pages, 14 figures, 3rd para of 4.5.3 has been added, this is final version in press at ApJ, also found at this http URL

Journal-ref: Astrophys.J. 593 (2003) 1093-1115

Subjects: Astrophysics (astro-ph)

[410] arXiv:astro-ph/0304410 [pdf, other]

Title: A Code for Stellar Binary Evolution and its Application to the Formation of Helium White Dwarfs

O. G. Benvenuto, M. A. De Vito

Comments: 13 pages including 3 figures; accepted for publication in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 342 (2003) 50

Subjects: Astrophysics (astro-ph)

[411] arXiv:astro-ph/0304411 [pdf, other]

Title: A maximum likelihood approach to the destriping technique

E. Keihanen, H. Kurki-Suonio, T. Poutanen, D. Maino, C. Burigana

Comments: Revised version, accepted by A&A, 12 pages, 14 figures

Journal-ref: Astron.Astrophys. 428 (2004) 287-298

Subjects: Astrophysics (astro-ph)

[412] arXiv:astro-ph/0304412 [pdf, other]

Title: Swift Pointing and Gravitational-Wave Bursts from Gamma-Ray Burst Events

Lee Samuel Finn, Badri Krishnan, Patrick J. Sutton

Comments: iop style, 1 figure, 6 pages, presented at GWDAW 2002

Journal-ref: Class.Quant.Grav.20:S815-S820,2003

Subjects: Astrophysics (astro-ph)

[413] arXiv:astro-ph/0304413 [pdf, other]

Title: On particle acceleration around shocks. II: on the diffuse scattering by moving media

Mario Vietri (Scuola Normale Superiore)

Comments: This paper is withdrawn. A revised version, already accepted for publication in The Astrophysical Journal, will be submitted tomorrow

Subjects: Astrophysics (astro-ph)

[414] arXiv:astro-ph/0304414 [pdf, other]

Title: New Low-Mass Members of the Taurus Star-Forming Region

K. L. Luhman (CfA), Cesar Briceno (CIDA), John R. Stauffer (SIRTF Science Center), Lee Hartmann (CfA), D. Barrado y Navascues (LAEFF-INTA), Nelson Caldwell (CfA)

Comments: to be published in The Astrophysical Journal, 13 pages, 6 figures, also found at this http URL

Journal-ref: Astrophys.J.590:348-356,2003

Subjects: Astrophysics (astro-ph)

[415] arXiv:astro-ph/0304415 [pdf, other]

Title: How did the metals in a giant star originate?

Piercarlo Bonifacio (1), Marco Limongi (2), Alessandro Chieffi (3) ((1) INAF- Osservatorio Astronomico di Trieste, (2) INAF - Osservatorio Astronomico di Roma, (3) Istituto di Astrofisica Spaziale, CNR)

Comments: to appear in Nature Brief Communications issue 24 April 2003

Subjects: Astrophysics (astro-ph)

[416] arXiv:astro-ph/0304416 [pdf, other]

Title: CMB-induced Cluster Polarization as a Cosmological Probe

Daniel Baumann (Cambridge), Asantha Cooray (Caltech)

Comments: 7 pages, 3 figures; to appear in proceedings of the CMBnet meeting, Oxford, February 2003; submitted to New Astronomy

Journal-ref: New Astron.Rev. 47 (2003) 839-843

Subjects: Astrophysics (astro-ph)

[417] arXiv:astro-ph/0304417 [pdf, other]

Title: Weak Lensing from Space I: Instrumentation and Survey Strategy

Jason Rhodes, Alexandre Refregier, Richard Massey, the SNAP Collaboration

Comments: 25 pages, 8 figures, 1 table, replaced with Published Version

Journal-ref: Astropart.Phys. 20 (2004) 377

Subjects: Astrophysics (astro-ph)

[418] arXiv:astro-ph/0304418 [pdf, other]

Title: Weak Lensing from Space II: Dark Matter Mapping

Richard Massey, Jason Rhodes, Alexandre Refregier, Justin Albert, David Bacon, Gary Bernstein, Richard Ellis, Bhuvnesh Jain, Tim McKay, Saul Perlmutter, Andy Taylor

Comments: 20 pages, 12 figures. Accepted version: includes one extra figure and analysis concerning the optimal pixel size

Journal-ref: Astron.J. 127 (2004) 3089

Subjects: Astrophysics (astro-ph)

[419] arXiv:astro-ph/0304419 [pdf, other]

Title: Weak Lensing from Space III: Cosmological Parameters

Alexandre Refregier, Richard Massey, Jason Rhodes, Richard Ellis, Justin Albert, David Bacon, Gary Bernstein, Tim McKay, Saul Perlmutter

Comments: 12 pages, 11 figures. Accepted version

Journal-ref: Astron.J. 127 (2004) 3102

Subjects: Astrophysics (astro-ph)

[420] arXiv:astro-ph/0304420 [pdf, other]

Title: Contact Binaries

Ronald F. Webbink

Comments: 12 pages, 5 figures, to appear in 3D Stellar Evolution, ed. P.P. Eggleton and D.S.P. Dearborn (ASP Conf. Ser.)

Subjects: Astrophysics (astro-ph)

[421] arXiv:astro-ph/0304421 [pdf, other]

Title: Black Hole Accretion Disks On The Edge

Kristen Menou (UVa)

Comments: 17 pages, 4 figures, accepted for publication in ApJ

Journal-ref: Astrophys.J.596:414-420,2003

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

[422] arXiv:astro-ph/0304422 [pdf, other]

Title: Preparing the COROT space mission: incidence and characterisation of pulsation in the Lower Instability Strip

E. Poretti, R. Garrido, P.J. Amado, K. Uytterhoeven, G. Handler, R. Alonso, S. Martin, C.Aerts, C. Catala, M.J. Goupil, E. Michel, L. Mantegazza, P. Mathias, M.L. Pretorius, J.A. Belmonte, A. Claret, E. Rodriguez, J.C. Suarez, F.F. Vuthela, W.W.Weiss, D. Ballereau, J.C. Bouret, S. Charpinet, T. Hua, T. Luftinger, N. Nesvacil, C. Van't Veer-Menneret

Comments: 9 pages, 9 figures Accepted for publication in Astronomy & Astrophysics, Main Journal

Journal-ref: Astron.Astrophys. 406 (2003) 203-212

Subjects: Astrophysics (astro-ph)

[423] arXiv:astro-ph/0304423 [pdf, other]

Title: Constraints on a Universal IMF from UV to Near-IR Galaxy Luminosity Densities

I. K. Baldry, K. Glazebrook

Comments: 16 pages, accepted by ApJ

Journal-ref: Astrophys.J.593:258-271,2003

Subjects: Astrophysics (astro-ph)

[424] arXiv:astro-ph/0304424 [pdf, other]

Title: Diffusion and Settling in Ap/Bp Stars

S. Turcotte

Comments: 7 pages, invited talk to International Conference on Magnetic Feilds in O, B and A Stars

Subjects: Astrophysics (astro-ph)

[425] arXiv:astro-ph/0304425 [pdf, other]

Title: Roche Lobe Overflow from Dwarf Stellar Systems

Stephen D. Murray, Shawfeng Dong, Douglas N. C. Lin

Comments: 28 pages, LaTeX, AASTex macros

Journal-ref: Astrophys.J. 593 (2003) 301

Subjects: Astrophysics (astro-ph)

[426] arXiv:astro-ph/0304426 [pdf, other]

Title: Formation scenarios for the young stellar associations between galactic longitudes l = 280-360 deg

Marilia J. Sartori (1 and 2), Jacques R. D. Lepine (2), Wilton S. Dias (2) ((1) Laboratorio Nacional de Astrofisica, Brazil, (2) Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, USP, Brazil)

Comments: 14 pages, 14 postscript figures, accepted for publication in A&A

Journal-ref: Astron.Astrophys. 404 (2003) 913-926

Subjects: Astrophysics (astro-ph)

[427] arXiv:astro-ph/0304427 [pdf, other]

Title: The Extragalactic Distance Scale

Joseph B. Jensen (Gemini), John L. Tonry (Hawaii), John P. Blakeslee (JHU)

Comments: 18 pages, 1 figure; contribution to Measuring and Modeling the Universe, Carnegie Observatories Astrophysics Series Vol. 2, ed. W. L. Freedman

Subjects: Astrophysics (astro-ph)

[428] arXiv:astro-ph/0304428 [pdf, other]

Title: On Exact Polytropic Equilibria of Self-Gravitating Gaseous and Radiative Systems: Their Application to Molecular Cloud Condensation

Mitsuru Honda, Yasuko. S. Honda

Comments: 5 pages, 3 figures, 1 table. Accepted for publication in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc. 341 (2003) 164

Subjects: Astrophysics (astro-ph)

[429] arXiv:astro-ph/0304429 [pdf, other]

Title: Intrinsic Variability and Field Statistics for the Vela Pulsar: 2. Systematics and Single-Component Fits

Iver H. Cairns, S. Johnston, P. Das

Comments: 11 pages, 12 figures. Accepted by Monthly Notices of the Royal Astronmical Society in April 2003

Journal-ref: Mon.Not.Roy.Astron.Soc. 343 (2003) 512

Subjects: Astrophysics (astro-ph)

[430] arXiv:astro-ph/0304430 [pdf, other]

Title: Intrinsic Variability and Field Statistics for the Vela Pulsar: 3. Two-Component Fits and Detailed Assessment of Stochastic Growth Theory

Iver H. Cairns, P. Das, P. A. Robinson, S. Johnston

Comments: 10 pages and 14 figures. Accepted by Monthly Notices of the Royal Astronomical Society in April 2003

Journal-ref: Mon.Not.Roy.Astron.Soc. 343 (2003) 523

Subjects: Astrophysics (astro-ph)

[431] arXiv:astro-ph/0304431 [pdf, other]

Title: Galactic structure studies with BATC star counts

Cuihua Du, Xu Zhou, Jun Ma, Alfred B-C Chen, Yanbin Yang, Jiuli Li, Hong Wu, Zhaoji Jiang, Jiansheng Chen

Comments: 17pages,9 figures

Journal-ref: Astron.Astrophys. 407 (2003) 541-550

Subjects: Astrophysics (astro-ph)

[432] arXiv:astro-ph/0304432 [pdf, other]

Title: Chaos or Order in Double Barred Galaxies?

Witold Maciejewski (INAF - Osservatorio Astrofisico di Arcetri)

Comments: 10 pages, 5 figures, to appear in Lecture Notes in Physics, vol. "Galaxies and Chaos", eds. G. Contopoulos & N. Voglis

Subjects: Astrophysics (astro-ph)

[433] arXiv:astro-ph/0304433 [pdf, other]

Title: Angular dimensions of planetary nebulae

R. Tylenda, N. Siodmiak, S.K. Gorny, R.L.M. Corradi, H.E. Schwarz

Comments: 10 figures, 2 tables

Journal-ref: Astron.Astrophys. 405 (2003) 627-638

Subjects: Astrophysics (astro-ph)

[434] arXiv:astro-ph/0304434 [pdf, other]

Title: On the Size Difference between Red and Blue Globular Clusters

Soeren S. Larsen (1), Jean P. Brodie (2) ((1) ESO, Garching (2) UCO/Lick)

Comments: 30 pages, including 14 figures and 2 tables. Accepted for publication in ApJ

Journal-ref: Astrophys.J. 593 (2003) 340

Subjects: Astrophysics (astro-ph)

[435] arXiv:astro-ph/0304435 [pdf, other]

Title: Disentangling microlensing and differential extinction in the double QSO HE0512-3329

O. Wucknitz (1), L. Wisotzki (1,2), S. Lopez (3), M.D. Gregg (4) ((1) Universitaet Potsdam, (2) Astrophysikalisches Institut Potsdam, (3) Universidad de Chile, Santiago, (4) Lawrence Livermore National Laboratory)

Comments: Accepted for publication in A&A. 10 pages, 7 figures included. Uses this http URL, graphicx, txfonts, natbib. A previous version of this paper comprising a more speculative microlensing analysis can be found at this http URL

Journal-ref: Astron.Astrophys. 405 (2003) 445-454

Subjects: Astrophysics (astro-ph)

[436] arXiv:astro-ph/0304436 [pdf, other]

Title: Mergers between elliptical galaxies and the thickening of the fundamental plane

A. C. Gonzalez-Garcia, T. S. van Albada (Kapteyn Ast. Institute, Groningen)

Comments: 5 pages, 4 figures, MNRAS re-submitted with possitive referee report

Journal-ref: Mon.Not.Roy.Astron.Soc. 342 (2003) L36

Subjects: Astrophysics (astro-ph)

[437] arXiv:astro-ph/0304437 [pdf, other]

Title: An analysis of two-layer models for circumstellar disks

C. P. Dullemond, A. Natta

Comments: Accepted for publication in Astronomy & Astrophysics

Journal-ref: Astron.Astrophys. 405 (2003) 597-606

Subjects: Astrophysics (astro-ph)

[438] arXiv:astro-ph/0304438 [pdf, other]

Title: The Basics of Lensing

Konrad Kuijken (Leiden Observatory)

Comments: Introductory Lecture to 'Gravitational Lensing: a unique tool for cosmology', Aussois, France, January 2003. To appear in ASP conference series, eds. D. Valls-Gabaud & J.-P. Kneib

Subjects: Astrophysics (astro-ph)

[439] arXiv:astro-ph/0304439 [pdf, other]

Title: Spectropolarimetry of the borderline Seyfert 1 galaxy ESO 323-G077

H.M. Schmid, I. Appenzeller, U. Burch

Journal-ref: Astron.Astrophys. 404 (2003) 505-512

Subjects: Astrophysics (astro-ph)

[440] arXiv:astro-ph/0304440 [pdf, other]

Title: Re-analysis of VLT Data for M83 with Image Subtraction -- Nine-fold Increase in Number of Cepheids

A. Z. Bonanos, K. Z. Stanek

Comments: 10 pages, 4 figures, accepted for publication by ApJL (July 2003). The full version of Figure 1 is available from this http URL

Journal-ref: Astrophys.J. 591 (2003) L111-L114

Subjects: Astrophysics (astro-ph)

[441] arXiv:astro-ph/0304441 [pdf, other]

Title: Planck-Kerr Turbulence

Carl H. Gibson (Univ. Cal. San Diego)

Comments: 4 pages, 2 figures, 1 table

Subjects: Astrophysics (astro-ph)

[442] arXiv:astro-ph/0304442 [pdf, other]

Title: The OGLE-II event sc5_2859 -- An example of disk-disk microlensing

M. C. Smith

Comments: 21 pages, 4 figures. Accepted for publication in MNRAS. Note Added in Proof: The nature of this event has become unclear, since archival EROS data have been found that may contradict the model presented in this paper

Journal-ref: Mon.Not.Roy.Astron.Soc. 343 (2003) 1172

Subjects: Astrophysics (astro-ph)

[443] arXiv:astro-ph/0304443 [pdf, other]

Title: Radio and X-ray observations of the jet in Centaurus A

M. J. Hardcastle, D. M. Worrall (1), R. P. Kraft, W. R. Forman, C. Jones, S. S. Murray (2) ((1) University of Bristol (2) Harvard-Smithsonian Center for Astrophysics)

Comments: 35 pages, 11 figures. Accepted for publication in ApJ. Figure quality reduced: for version with full-quality figures (gzipped PS) see this http URL

Journal-ref: Astrophys.J.593:169,2003; Astrophys.J.593:169-183,2003

Subjects: Astrophysics (astro-ph)

[444] arXiv:astro-ph/0304444 [pdf, other]

Title: Cooling flows or warming rays?

Sergio Colafrancesco, Arnon Dar, Alvaro De Rujula

Comments: Submitted for publication in Astronomy and Astrophysics

Journal-ref: Astron.Astrophys. 413 (2004) 441-452

Subjects: Astrophysics (astro-ph)

[445] arXiv:astro-ph/0304445 [pdf, other]

Title: Some Constraints On the Effects of Age and Metallicity on the Low Mass X-ray Binary Formation Rate

Arunav Kundu, Thomas J. Maccarone, Stephen E. Zepf, Thomas H. Puzia

Comments: Accepted for publication in ApJ Letters. 7 pages including 5 figures

Journal-ref: Astrophys.J. 589 (2003) L81-L84; Erratum-ibid. 600 (2003) L91

Subjects: Astrophysics (astro-ph)

[446] arXiv:astro-ph/0304446 [pdf, other]

Title: Effect of realistic astrophysical inputs on the phase and shape of the WIMP annual modulation signal

Anne M Green

Comments: 12 pages, 12 figures, v2: minor changes, v3: erratum regarding values of circular velocity used added

Journal-ref: Phys.Rev.D68:023004,2003; Erratum-ibid.D69:109902,2004

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

[447] arXiv:astro-ph/0304447 [pdf, other]

Title: On the Origin of Intracluster Entropy

G. Mark Voit, Michael L. Balogh, Richard G. Bower, Cedric G. Lacey, Greg L. Bryan

Comments: 28 pages, 16 figures, Accepted to Ap. J (August 10, 2003 issue)

Journal-ref: Astrophys.J. 593 (2003) 272

Subjects: Astrophysics (astro-ph)

[448] arXiv:astro-ph/0304448 [pdf, other]

Title: Neutrinos from the Propagation of a Relativistic Jet Through a Star

Jason Pruet

Comments: To appear in ApJ

Journal-ref: Astrophys.J. 591 (2003) 1104-1109

Subjects: Astrophysics (astro-ph)

[449] arXiv:astro-ph/0304449 [pdf, other]

Title: The K Band Luminosity Function of High Redshift Clusters

S. C. Ellis, L. R. Jones (Birmingham, UK)

Comments: 5 pages, in Carnegie Observatories Astrophysics Series, Vol. 3: Clusters of Galaxies: Probes of Cosmological Structure and Galaxy Evolution, ed. J. S. Mulchaey, A. Dressler, and A. Oemler. See this http URL

Subjects: Astrophysics (astro-ph)

[450] arXiv:astro-ph/0304450 [pdf, other]

Title: Surface Outflow in Optically Thick Dust Disks by the Radiation Pressure

Taku Takeuchi, D. N. C. Lin (University of California, Santa Cruz)

Comments: 14 pages, 7 figures, ApJ accepted

Journal-ref: Astrophys.J. 593 (2003) 524

Subjects: Astrophysics (astro-ph)