Astrophysics

Authors and titles for June 2007

[251] arXiv:0706.1421 [pdf, other]

Title: On electromagnetic contributions in WIMP quests

R. Bernabei (1), P. Belli (1), F. Montecchia (1), F. Nozzoli (1), F. Cappella (2), A. Incicchitti (2), D. Prosperi (2), R. Cerulli (3), C.J. Dai (4), H.L. He (4), H.H. Kuang (4), J.M. Ma (4), X.D. Sheng (4), Z.P. Ye (4) ((1) Univ. and INFN Roma Tor Vergata, (2) Univ. and INFN Roma, (3) INFN LNGS, (4) IHEP Beijing)

Comments: 14 pages, 6 figures, 2 tables, Int. J. Mod. Phys. A (in publication)

Journal-ref: Int.J.Mod.Phys.A22:3155-3168,2007

Subjects: Astrophysics (astro-ph)

[252] arXiv:0706.1430 [pdf, other]

Title: Arc-like distribution of high CO(J=3-2)/CO(J=1-0) ratio gas surrounding the central star cluster of the supergiant HII region NGC 604

T. Tosaki, R. Miura, T. Sawada, N. Kuno, K. Nakanishi, K. Kohno, S. K. Okumura, R. Kawabe

Comments: 4 pages, 4 figures. The Astrophysical Journal Letters, in press

Journal-ref: Astrophys.J.664:L27-LL30, 2007

Subjects: Astrophysics (astro-ph)

[253] arXiv:0706.1432 [pdf, other]

Title: Reconstruction of 5D Cosmological Model From Recent Observations

Chengwu Zhang, Lixin Xu, Yongli Ping, Hongya Liu

Comments: 7 pages, 3 figs, Accept by IJMPD

Journal-ref: Int.J.Mod.Phys.D16:1573-1579,2007

Subjects: Astrophysics (astro-ph)

[254] arXiv:0706.1433 [pdf, other]

Title: IGR J00234+6141 : a new INTEGRAL source identified as an Intermediate polar

J.M. Bonnet-Bidaud, D. de Martino, M. Falanga, M. Mouchet, N. Masetti

Comments: 6 pages, 7 figures, accepted for publication in A&A

Subjects: Astrophysics (astro-ph)

[255] arXiv:0706.1441 [pdf, other]

Title: On Shadow of the Moon in Extensive Air Shower Data

F. Sheidaei, M. Bahmanabadi, M. Khakian Ghomi, S.M. Mahdavi, J. Samimi, A. Anvari

Subjects: Astrophysics (astro-ph)

[256] arXiv:0706.1447 [pdf, other]

Title: Star clusters as diaries of galaxies

Th. Maschberger, P. Kroupa

Comments: 2 pages, 2 figures, To be published in the proceedings of "Pathways Through an Eclectic Universe", Tenerife, April 23-27, 2007, ed. T. Mahoney, A. Vazdekis, and J. Knapen

Subjects: Astrophysics (astro-ph)

[257] arXiv:0706.1464 [pdf, other]

Title: Testing thermal reprocessing in AGN accretion discs

E. M. Cackett (Univ. of Michigan), K. Horne (Univ. of St Andrews), H. Winkler (Univ. of Johannesburg)

Comments: 16 pages, 13 figures, accepted for publication in MNRAS

Subjects: Astrophysics (astro-ph)

[258] arXiv:0706.1491 [pdf, other]

Title: Weather induced effects on extensive air showers observed with the surface detector of the Pierre Auger Observatory

Carla Bleve (for the Pierre Auger Collaboration)

Comments: Contribution to the 30th International Cosmic Ray Conference, Merida, Mexico, July 2007

Subjects: Astrophysics (astro-ph)

[259] arXiv:0706.1495 [pdf, other]

Title: Study of the Cosmic Ray Composition above 0.4 EeV using the Longitudinal Profiles of Showers observed at the Pierre Auger Observatory

Michael Unger (for the Pierre Auger Collaboration)

Comments: Contribution to the 30th International Cosmic Ray Conference, Merida Mexico, July 2007

Subjects: Astrophysics (astro-ph)

[260] arXiv:0706.1500 [pdf, other]

Title: X-ray Flares in Orion Low Mass Stars

M. Caramazza (1,2), E. Flaccomio (2), G. Micela (2), F. Reale (1,2), S. J. Wolk (3), E. D. Feigelson (4) ((1) Dipartimento di Scienze Fisiche ed Astronomiche, Universita di Palermo,(2)INAF Osservatorio Astronomico di Palermo,(3)Harvard-Smithsonian Center for Astrophysics,(4)Department of Astronomy and Astrophysics, Pennsylvania State University)

Subjects: Astrophysics (astro-ph)

[261] arXiv:0706.1501 [pdf, other]

Title: Longitudinal Shower Profile Reconstruction from Fluorescence and Cherenkov Light

M. Unger, R. Engel, F. Schüssler, R. Ulrich

Comments: Contribution to the 30th International Cosmic Ray Conference, Merida Mexico, July 2007

Subjects: Astrophysics (astro-ph)

[262] arXiv:0706.1505 [pdf, other]

Title: Very High Energy Gamma-ray Radiation from the Stellar-mass Black Hole Cygnus X-1

MAGIC Collaboration: J. Albert, et al

Comments: 4 ApJL-formatted pages, 4 figures. Revised version accepted for publication at ApJL (26-06-2007)

Journal-ref: Astrophys.J.665:L51-L54,2007

Subjects: Astrophysics (astro-ph)

[263] arXiv:0706.1510 [pdf, other]

Title: Aromatic emission from the ionised mane of the Horsehead nebula

M. Compiegne (1), A. Abergel (1), L. Verstraete (1), W. T. Reach (2), E. Habart (1), J.D. Smith (3), F. Boulanger (1), C. Joblin (4) ((1) IAS Orsay FRANCE, (2) SSC Pasadena USA, (3) Steward Observatory Tucson USA, (4) CESR Toulouse FRANCE)

Comments: 9 pages, 9 figures, accepted for publication in A&A

Subjects: Astrophysics (astro-ph)

[264] arXiv:0706.1511 [pdf, other]

Title: Pulsar Kicks With Modified URCA and Electrons in Landau Levels

Ernest M. Henley (Department of Physics, University of Washington), Mikkel B. Johnson (Los Alamos National Laboratory), Leonard S. Kisslinger (Department of Physics, Carnegie Mellon University)

Comments: 11 pages, 6 figures

Journal-ref: Phys.Rev.D76:125007,2007

Subjects: Astrophysics (astro-ph)

[265] arXiv:0706.1518 [pdf, other]

Title: GRB051022: physical parameters and extinction of a prototype dark burst

Evert Rol, Alexander van der Horst, Klaas Wiersema, Sandeep K. Patel, Andrew Levan, Melissa Nysewander, Chryssa Kouveliotou, Ralph A.M.J. Wijers, Nial Tanvir, Dan Reichart, Andrew S. Fruchter, John Graham, Jan-Erik Ovaldsen, Andreas O. Jaunsen, Peter Jonker, Wilbert van Ham, Jens Hjorth, Rhaana L.C. Starling, Paul T. O'Brien, Johan Fynbo, David N. Burrows, Richard Strom

Comments: 18 pages, 1 figure. Accepted to ApJ, includes referee's comments

Journal-ref: Astrophys.J. 669 (2007) 1098-1106

Subjects: Astrophysics (astro-ph)

[266] arXiv:0706.1535 [pdf, other]

Title: The initial conditions of star formation in the Ophiuchus main cloud: Kinematics of the protocluster condensations

Ph. André, A. Belloche, F. Motte, N. Peretto

Comments: 17 pages, 8 figures. A&A, in press (v2: notes added to Table 3)

Journal-ref: Astron.Astrophys.472:519-535,2007

Subjects: Astrophysics (astro-ph)

[267] arXiv:0706.1537 [pdf, other]

Title: Semi-Empirical Cepheid Period-Luminosity Relations in Sloan Magnitudes

C. Ngeow (UIUC), S. Kanbur (SUNY-Oswego)

Comments: 4 pages, 2 tables and 2 figures, ApJ accepted

Journal-ref: Astrophys.J.667:35-37,2007

Subjects: Astrophysics (astro-ph)

[268] arXiv:0706.1538 [pdf, other]

Title: Superluminal motion and closed signal curves

Camille Bonvin, Chiara Caprini, Ruth Durrer

Comments: 10 pages, 3 figures, argument about the Hawking and Ellis theorem on stable causality added in the conclusion

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

[269] arXiv:0706.1542 [pdf, other]

Title: Pulsar Physics and GLAST

Alice K. Harding

Comments: 5 pages, 2 figures, to appear in Proc. of First GLAST Symposium (Stanford, Feb. 5-8, 2007), eds. this http URL, P.F. Michelson, and this http URL, AIP Conf. Proc

Journal-ref: AIP Conf.Proc.921:49-53,2007

Subjects: Astrophysics (astro-ph)

[270] arXiv:0706.1544 [pdf, other]

Title: Novel technique for monitoring the performance of the LAT instrument on board the GLAST satellite

D.Paneque, A. Borgland, A. Bovier, E. Bloom, Y. Edmonds, S. Funk, G. Godfrey, R. Rando, L. Wai, P. Wang

Comments: 2 pages, 1 figure, manuscript submitted on behalf of the GLAST/LAT collaboration to First GLAST symposium proceedings

Journal-ref: AIP Conf.Proc.921:562-563,2007

Subjects: Astrophysics (astro-ph)

[271] arXiv:0706.1548 [pdf, other]

Title: Retaining Black Holes with Very Large Recoil Velocities

Jeremy D. Schnittman (U Maryland)

Comments: 6 pages, 3 figures; Comments welcome

Subjects: Astrophysics (astro-ph)

[272] arXiv:0706.1550 [pdf, other]

Title: Galactic disc warps due to intergalactic accretion flows onto the disc

M. Lopez-Corredoira, J. Betancort-Rijo, J. E. Beckman

Comments: 4 pages, 1 figure, to be published in: "Pathways through an eclectic Universe" (ASP Proc.; proceedings of the conference held at Tenerife, Spain on 23rd-27th April 2007), J. Knappen, T. J. Mahoney, A. Vazdekis (Eds.)

Subjects: Astrophysics (astro-ph)

[273] arXiv:0706.1551 [pdf, other]

Title: Study of the Flux and Spectral Variations in the VHE Emission from the Blazar Markarian 501, with the MAGIC Telescope

D. Paneque

Comments: 4 pages, 3 figures, manuscript submitted on behalf of the MAGIC collaboration to the First GLAST Symposium (oral presentation)

Journal-ref: AIP Conf.Proc.921:153-156,2007

Subjects: Astrophysics (astro-ph)

[274] arXiv:0706.1552 [pdf, other]

Title: Fourier resolved spectroscopy of 4U 1728-34: New Insights into Spectral and Temporal Properties of Low-Mass X-ray Binaries

C.R. Shrader, P. Reig, D. Kazanas

Comments: 16 pages, 5 tables, 5 figures. Accepted for publication in ApJ

Subjects: Astrophysics (astro-ph)

[275] arXiv:0706.1557 [pdf, other]

Title: The cosmological constant and dark energy in braneworlds

Kazuya Koyama

Comments: Invited Review for a special Gen. Rel. Grav. issue on Dark Energy, 22 pages, 13 figures, references added

Journal-ref: Gen.Rel.Grav.40:421-450,2008

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

[276] arXiv:0706.1562 [pdf, other]

Title: Rapid Formation of Supermassive Black Hole Binaries in Galaxy Mergers with Gas

Lucio Mayer (1,2), Stelios Kazantzidis (3), Piero Madau (4,5), Monica Colpi (6), Thomas Quinn (7), James Wadsley (8) ((1) ETH Zurich, (2) University of Zurich, (3) KIPAC, Stanford, (4) UC Santa Cruz, (5) MPA, (6) University of Milano Bicocca, (7) University of Washington, (8) McMaster University)

Comments: Accepted for publication in Science, 40 pages, 7 figures, Supplementary Information included

Journal-ref: Science 316 (2007) 1874-1877

Subjects: Astrophysics (astro-ph)

[277] arXiv:0706.1564 [pdf, other]

Title: The First Survey of X-ray Flares from Gamma Ray Bursts Observed by Swift: Spectral Properties and Energetics

A. D. Falcone (1), D. Morris (1), J. Racusin (1), G. Chincarini (2 and 3), A. Moretti (2), P. Romano (2 and 3), D. N. Burrows (1), C. Pagani (1), M. Stroh (1), D. Grupe (1), S. Campana (2), S. Covino (2), G. Tagliaferri (2), R. Willingale (4), N. Gehrels (5) ((1) Pennsylvania State University, (2)INAF-Osservatorio Astronomico di Brera, (3) Universita degli studi di Milano-Bicocca, (4) University of Leicester, (5) NASA/Goddard Space Flight Center)

Comments: accepted by ApJ; 39 pages with 14 figures and 7 tables

Subjects: Astrophysics (astro-ph)

[278] arXiv:0706.1565 [pdf, other]

Title: The Beginning and Evolution of the Universe

Bharat Ratra (Kansas State University), Michael S. Vogeley (Drexel University)

Comments: 69 pages. Invited review article for Publications of the Astronomical Society of the Pacific. Supplementary references, tables, and more concise PDF file at this http URL

Journal-ref: Publ.Astron.Soc.Pac.120:235-265,2008

Subjects: Astrophysics (astro-ph); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th); History and Philosophy of Physics (physics.hist-ph)

[279] arXiv:0706.1569 [pdf, other]

Title: Composition-sensitive parameters measured with the surface detector of the Pierre Auger Observatory

M.D.Healy (for the Pierre Auger Collaboration)

Comments: Contribution to the 30th International Cosmic Ray Conference, Merida Mexico, July 2007

Subjects: Astrophysics (astro-ph)

[280] arXiv:0706.1578 [pdf, other]

Title: The Origin of the Magellanic Stream and Its Leading Arm

David L. Nidever, Steven R. Majewski, W. Butler Burton

Comments: 31 pages, 26 figures, Accepted for publication in ApJ

Journal-ref: Astrophys.J.679:432-459,2008

Subjects: Astrophysics (astro-ph)

[281] arXiv:0706.1580 [pdf, other]

Title: Empirical Photometric Redshifts of Luminous Red Galaxies and Clusters in SDSS

P.A.A. Lopes (Instituto Nacional de Pesquisas Espaciais; Harvard-Smithsonian Center for Astrophysics)

Comments: 14 pages, 6 figures. Accepted to MNRAS. Minor changes in response to referee report

Journal-ref: MNRAS, 380:1608-1620, 2007

Subjects: Astrophysics (astro-ph)

[282] arXiv:0706.1583 [pdf, other]

Title: Evidence for Distinct Components of the Galactic Stellar Halo from 838 RR Lyrae Stars Discovered in the LONEOS-I Survey

A. Miceli, A. Rest, C. W. Stubbs, S. L. Hawley, K. H. Cook, E. A. Magnier, K. Krisciunas, E. Bowell, B. Koehn

Comments: 18 pages, 28 figures, apjemulated, minor corrections and clarifications. Accepted to ApJ on Jan 21, 2008

Subjects: Astrophysics (astro-ph)

[283] arXiv:0706.1586 [pdf, other]

Title: 21-cm synthesis observations of VIRGOHI 21 - a possible dark galaxy in the Virgo Cluster

Robert Minchin (1 and 2), Jonathan Davies (2), Michael Disney (2), Marco Grossi (2 and 3), Sabina Sabatini (4), Peter Boyce (2), Diego Garcia (2 and 5), Chris Impey (6), Christine Jordan (7), Robert Lang (2), Andrew Marble (6), Sarah Roberts (2), Wim van Driel (8) ((1) Arecibo Observatory, (2) Cardiff University, (3) Osservatorio Astrofisico di Arcetri, (4) Osservatorio Astronomico di Roma, (5) University of Bonn, (6) Steward Observatory, (7) Jodrell Bank Observatory, (8) Observatoire de Paris)

Comments: 8 pages, accepted to ApJ, uses this http URL. Mpeg animation (Fig. 2) available at this ftp URL

Subjects: Astrophysics (astro-ph)

[284] arXiv:0706.1593 [pdf, other]

Title: Groups of galaxies in the SDSS Data Release 5. A group-finder and a catalogue

E. Tago, J. Einasto, E. Saar, E. Tempel, M. Einasto, J. Vennik, V. Müller

Comments: 11 pages, 15 figures, submitted to Astronomy and Astrophysics

Journal-ref: Astron.Astrophys.479:927-937,2008

Subjects: Astrophysics (astro-ph)

[285] arXiv:0706.1595 [pdf, other]

Title: Correlations between X-ray Spectral and Timing Characteristics in Cyg X-2

Lev Titarchuk (GMU/NRL/GSFC), Sergey Kuznetsov (UCR/IKI, Russia), Nikolai Shaposhnikov (USRA/GSFC)

Comments: 7 pages, 4 figures, accepted for publication in ApJ (October 1, 2007, v667n2 issue)

Journal-ref: Astrophys.J.667:404-410,2007

Subjects: Astrophysics (astro-ph)

[286] arXiv:0706.1596 [pdf, other]

Title: Large-Scale Structure of Short-Lived Lyman\alpha Emitters

Ikkoh Shimizu, Masayuki Umemura, Atsunori Yonehara

Comments: 5 pages, 4 figures, accepted for publication in MNRAS

Subjects: Astrophysics (astro-ph)

[287] arXiv:0706.1601 [pdf, other]

Title: Discovery of 11 New T Dwarfs in the Two Micron All-Sky Survey, Including a Possible L/T Transition Binary

Dagny L. Looper (Institute for Astronomy, UH), J. Davy Kirkpatrick (IPAC/Caltech), Adam J. Burgasser (MIT)

Comments: 45 pages, 9 figures, 9 tables. Published in AJ. Replacement: Fixed typos in 3 tables (some reported photometry was from the 2MASS Working Database instead of the 2MASS All Sky Catalog) and updated Fig. 5

Journal-ref: Astron.J.134:1162-1182,2007

Subjects: Astrophysics (astro-ph)

[288] arXiv:0706.1604 [pdf, other]

Title: Renormalized Newtonian Cosmic Evolution with Primordial Non-Gaussianity

Keisuke Izumi, Jiro Soda

Comments: 12 pages, 2 figures

Journal-ref: Phys.Rev.D76:083517,2007

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

[289] arXiv:0706.1623 [pdf, other]

Title: Angular momentum conservation and torsional oscillations in the Sun and solar-like stars

Antonino F. Lanza

Comments: 13 pages, 12 figures, accepted by Astronomy & Astrophysics

Subjects: Astrophysics (astro-ph)

[290] arXiv:0706.1624 [pdf, other]

Title: Some notes concerning the prediction of the amplitude of the two solar activity cycles

A. G. Tlatov

Comments: 5 pages, 5 figures

Subjects: Astrophysics (astro-ph)

[291] arXiv:0706.1626 [pdf, other]

Title: Near-Infrared Polarimetry of the Eagle Nebula (M16)

Koji Sugitani, Makoto Watanabe, Motohide Tamura, Ryo Kandori, J. H. Hough, Shogo Nishiyama, Yasushi Nakajima, Nobuhiko Kusakabe, Jun Hashimoto, Takahiro Nagayama, Chie Nagashima, Daisuke Kato, Naoya Fukuda

Comments: 9 figures, PASJ, Vol. 59, No. 3, June 25, 2007

Subjects: Astrophysics (astro-ph)

[292] arXiv:0706.1636 [pdf, other]

Title: Background studies and shielding effects for the TPC detector of the CAST experiment

G. Luzón, B. Beltrán, J. M. Carmona, S. Cebrián, H. Gómez, I. G. Irastorza, J. Morales, A. Ortíz, A. Rodríguez, J. Ruz, J. A. Villar

Comments: 14 pages, 5 figures, accepted in New Journal of Physics

Journal-ref: New J.Phys.9:208,2007

Subjects: Astrophysics (astro-ph)

[293] arXiv:0706.1639 [pdf, other]

Title: The chemical composition of the circumstellar envelopes around yellow hypergiant stars

G. Quintana-Lacaci, V. Bujarrabal, A. Castro-Carrizo, J. Alcolea

Comments: 14 pages, 12 figures

Subjects: Astrophysics (astro-ph)

[294] arXiv:0706.1643 [pdf, other]

Title: APEX survey of southern high mass star forming regions

C. Hieret, S. Leurini, K. M. Menten, P. Schilke, S. Thorwirth, F. Wyrowski

Comments: 3 pages, 3 figures; to appear in "Science with ALMA: a new era for Astrophysics" Conference Proceedings

Subjects: Astrophysics (astro-ph)

[295] arXiv:0706.1646 [pdf, other]

Title: Limits of ultra-high-precision optical astrometry: Stellar surface structures

Urban Eriksson, Lennart Lindegren

Comments: 12 pages, 4 figures, submitted to A&A

Subjects: Astrophysics (astro-ph)

[296] arXiv:0706.1656 [pdf, other]

Title: Millisecond pulsars around intermediate-mass black holes in globular clusters

B. Devecchi, M. Colpi, M. Mapelli, A. Possenti

Comments: 14 pages, 11 figures, 4 tables, to be published in MNRAS

Subjects: Astrophysics (astro-ph)

[297] arXiv:0706.1658 [pdf, other]

Title: Limits to the diffuse flux of UHE tau neutrinos at EeV energies from the Pierre Auger Observatory

O. Blanch Bigas (for the Pierre Auger Collaboration)

Comments: To be published in Proceedings of the 30th International Cosmic Ray Conference, July 3 - 11, 2007, Merida, Yucatan, Mexico. 4 pages, 5 figures

Subjects: Astrophysics (astro-ph)

[298] arXiv:0706.1664 [pdf, other]

Title: A new young stellar cluster embedded in a molecular cloud in the far outer Galaxy

Joao L. Yun, Ana Lopez-Sepulcre, Jose M. Torrelles

Comments: 6 pages, 6 figures

Subjects: Astrophysics (astro-ph)

[299] arXiv:0706.1669 [pdf, other]

Title: The Elongated Structure of the Hercules dSph from Deep LBT Imaging

Matthew G. Coleman, Jelte T. A. De Jong, Nicolas F. Martin, Hans-Walter Rix, David J. Sand, Eric F. Bell, Richard W. Pogge, David J. Thompson, H. Hippelein, E. Giallongo, R. Ragazzoni, Andrea DiPaola, Jacopo Farinato, Riccardo Smareglia, Vincenzo Testa, Jill Bechtold, John M. Hill, Peter M. Garnavich, Richard F. Green

Comments: Submitted to ApJ (Letters). 5 pages, 3 figures

Subjects: Astrophysics (astro-ph)

[300] arXiv:0706.1676 [pdf, other]

Title: Discovery of the strongly eccentric, short-period binary nature of the B-type system HD 313926 by the MOST satellite

Slavek Rucinski, Rainer Kuschnig, Jaymie M. Matthews, Wojtek Dimitrov, Theodor Pribulla, David B. Guenther, Anthony F. J. Moffat, Dimitar Sasselov, Gordon A. H. Walker, Werner W. Weiss

Comments: accepted as a Letter by MNRAS

Subjects: Astrophysics (astro-ph)