The Astrophysical Journal latest papers

The Effect of Asymmetric Beams in the Wilkinson Microwave Anisotropy Probe Experiment

Fri, 20 Nov 2009 00:00:00 GMT

Author(s): I. K. Wehus, L. Ackerman, H. K. Eriksen, and N. E. Groeneboom
Affiliation(s): Department of Physics, University of Oslo, P.O. Box 1048, Blindern, N-0316 Oslo, Norway; California Institute of Technology, Pasadena, CA 91125, USA; Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029, Blindern, N-0315 Oslo, Norway; Centre of Mathematics for Applications, University of Oslo, P.O. Box 1053, Blindern, N-0316 Oslo, Norway

Accurate Universal Models for the Mass Accretion Histories and Concentrations of Dark Matter Halos

Fri, 20 Nov 2009 00:00:00 GMT

Author(s): D. H. Zhao, Y. P. Jing, H. J. Mo, and G. Borner
Affiliation(s): Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, CAS, 80 Nandan Road, Shanghai 200030, China; Max-Planck-Institut fur Astrophysik, Karl-Schwarzschild-Strasse 1, 85748 Garching, Germany; Department of Astronomy, University of Massachusetts, Amherst, MA 01003, USA

Outflows and Massive Stars in the Protocluster IRAS 05358+3543

Fri, 20 Nov 2009 00:00:00 GMT

Author(s): Adam G. Ginsburg, John Bally, Chi-Hung Yan, and Jonathan P. Williams
Affiliation(s): Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences, University of Colorado, 389 UCB, Boulder, CO 80309-0389, USA; Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei, Taiwan; Department of Earth Sciences, National Taiwan Normal University, #88 Sec. 4, Ting-chow Rd., Taipei, Taiwan; Institute for Astronomy, University of Hawaii, 2680 Woodlawn Dr., Honolulu, HI 96822, USA

Estimating Redshifts for Long Gamma-Ray Bursts

Fri, 20 Nov 2009 00:00:00 GMT

Author(s): Limin Xiao and Bradley E. Schaefer
Affiliation(s): Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA

A Comprehensive Analysis of Swift/X-Ray Telescope Data. IV. Single Power-Law Decaying Light Curves Versus Canonical Light Curves and Implications for a Unified Origin of X-Rays

Fri, 20 Nov 2009 00:00:00 GMT

Author(s): En-Wei Liang, Hou-Jun Lu, Shu-Jin Hou, Bin-Bin Zhang, and Bing Zhang
Affiliation(s): Department of Physics, Guangxi University, Nanning 530004, China; Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154, USA

Propagation of Ultrahigh Energy Nuclei in Clusters of Galaxies: Resulting Composition and Secondary Emissions

Fri, 20 Nov 2009 00:00:00 GMT

Author(s): K. Kotera, D. Allard, K. Murase, J. Aoi, Y. Dubois, T. Pierog, and S. Nagataki
Affiliation(s): Institut d'Astrophysique de Paris, UMR7095--CNRS, Universite Pierre & Marie Curie, 98 bis Boulevard Arago, F-75014 Paris, France; Laboratoire Astroparticules et Cosmologie, (APC), Universite Paris 7/CNRS, 10 Rue A. Domon et L. Duquet, 75205 Paris Cedex 13, France; Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan; University of Oxford, Astrophysics, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK; Forschungszentrum Karlsruhe, Institut fuer Kernphysik, Karlsruhe, Germany

Ionized Gas toward Molecular Clumps: Physical Properties of Massive Star-Forming Regions

Fri, 20 Nov 2009 00:00:00 GMT

Author(s): Katharine G. Johnston, Debra S. Shepherd, James E. Aguirre, Miranda K. Dunham, Erik Rosolowsky, and Kenneth Wood
Affiliation(s): SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, UK; National Radio Astronomy Observatory, P.O. Box O, 1003 Lopezville Rd, Socorro, NM 87801, USA; Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104, USA; Department of Astronomy, University of Texas at Austin, 1 University Station, C1400, Austin, TX 78712-0259, USA; University of British Columbia at Okanagan, 3333 University Way, Kelowna BC V1V 1V7, Canada; Department of Astronomy, University of Wisconsin-Madison, 475 N. Charter Street, Madison, WI 53706-1582, USA

The Heating of Test Particles in Numerical Simulations of Alfvénic Turbulence

Fri, 20 Nov 2009 00:00:00 GMT

Author(s): Remi Lehe, Ian J. Parrish, and Eliot Quataert
Affiliation(s): Departement de Physique, Ecole Normale Superieure, 24 rue Lhomond, 75005 Paris, France; Astronomy Department & Theoretical Astrophysics Center, 601 Campbell Hall, University of California, Berkeley, CA 94720, USA; Einstein Fellow

Chianti—An Atomic Database for Emission Lines. XI. Extreme-Ultraviolet Emission Lines of Fe VII, Fe VIII, and Fe IX Observed by Hinode/EIS

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): P. R. Young and E. Landi
Affiliation(s): George Mason University, 4400 University Drive, Fairfax, VA 22030, USA; Naval Research Laboratory, Space Science Division, Washington, DC 20375, USA

Synchrotron and Synchrotron Self-Absorption for a Power-Law Particle Distribution: Asymptotic forms for Finite Energy Range

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): M. Fouka and S. Ouichaoui
Affiliation(s): Research Center in Astronomy, Astrophysics and Geophysics, B.P. 63, Algiers Observatory, Bouzareah, Algiers, Algeria; University of Sciences and Technology H. Boumediene, Faculty of Physics, Laboratory of Nuclear Sciences, B.P. 32, 16111 Bab Ezzouaz, Algiers, Algeria

Solar Flows and Their Effect on Frequencies of Acoustic Modes

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): Piyali Chatterjee and H. M. Antia
Affiliation(s): Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India; Current address: Nordita, 17 Roslagstullsbacken, 106 91 Stockholm, Sweden.

Spectra and Light Curves of Failed Supernovae

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): Chris L. Fryer, Peter J. Brown, Filomena Bufano, Jon A. Dahl, Christopher J. Fontes, Lucille H. Frey, Stephen T. Holland, Aimee L. Hungerford, Stefan Immler, Paolo Mazzali, Peter A. Milne, Evan Scannapieco, Nevin Weinberg, and Patrick A. Young
Affiliation(s): Los Alamos National Laboratory, Los Alamos, NM 87545, USA; Physics Department, University of Arizona, Tucson, AZ 85721, USA; Department of Astronomy & Astrophsycis, Pennsylvania State University, University Park, PA 16802, USA; Dipartimento di Astronomia, Univ. Padova, INAF-Osservatoroio Astronomico di Padova, Italy; Astrophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA; Max-Planck-Institut fur Astrophysik, Karl-Schwarzschild-Str. 1, 85748 Garching, Germany; Padova: INAF-Osservatorio Astronomico di Padova, Padova, Italy; Scuola Normale Superiore, Piazza dei Cavalieri, 7, 56126 Pisa, Italy; Steward Observatory, 933 North Cherry Avenue, RM N204, Tucson, AZ 85721, USA; SESE, Arizona State University, Tempe, AZ 85287, USA; Astronomy Department and Theoretical Astrophysics Center, University of California, Berkeley, 601 Campbell Hall, Berkeley, CA 94720, USA

Morphological Quenching of Star Formation: Making Early-Type Galaxies Red

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): Marie Martig, Frederic Bournaud, Romain Teyssier, and Avishai Dekel
Affiliation(s): CEA, IRFU, SAp. F-91191 Gif-sur-Yvette, France; Laboratoire AIM, CNRS, CEA/DSM, Universite Paris Diderot, France; Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel

Dark Matter Halos and Evolution of Bars in Disk Galaxies: Collisionless Models Revisited

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): Jorge Villa-Vargas, Isaac Shlosman, and Clayton Heller
Affiliation(s): Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506-0055, USA; JILA, University of Colorado, Boulder, CO 80309, USA; National Institute of Standards and Technology, Boulder, CO 80305-3328, USA; Department of Physics, Georgia Southern University, Statesboro, GA 30460, USA

Bondi–Hoyle–Lyttleton Accretion Onto a Protoplanetary Disk

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): Nickolas Moeckel and Henry B. Throop
Affiliation(s): SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9SS, UK; School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, UK; Southwest Research Institute, Department of Space Studies, 1050 Walnut St., Ste 300, Boulder, CO 80302, USA

Application of the Disk Evaporation Model to Active Galactic Nuclei

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): B. F. Liu and Ronald E. Taam
Affiliation(s): National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China; Academia Sinica Institute of Astronomy and Astrophysics -TIARA, P.O. Box 23-141, Taipei 10617, Taiwan; Academia Sinica Institute of Astronomy and Astrophysics/National Tsing Hua University-TIARA, Hsinchu, Taiwan; Northwestern University, Department of Physics and Astronomy, 2131 Tech Drive, Evanston, IL 60208, USA

IGR J17544–2619 in Depth With Suzaku: Direct Evidence for Clumpy Winds in a Supergiant Fast X-ray Transient

Thu, 19 Nov 2009 00:00:00 GMT

Author(s): Rachel A. Rampy, David M. Smith, and Ignacio Negueruela
Affiliation(s): Physics Department and Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, 1156 High St., Santa Cruz, CA, USA; Departamento de Fisica, Ingenieria de Sistemas y Teoria de la Senal, Universidad de Alicante, Apartado 99 E03080, Alicante, Spain