Astrophysics

Authors and titles for November 2007

[851] arXiv:0711.4682 [pdf, other]

Title: Approximate $w_\phi\sim\Omega_\phi$ Relations in Quintessence Models

Mingxing Luo, Qiping Su

Comments: 9 pages, 3 figures

Journal-ref: Commun.Theor.Phys.54:186-190,2010

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

[852] arXiv:0711.4686 [pdf, other]

Title: Measuring the non-thermal pressure in early type galaxy atmospheres: A comparison of X-ray and optical potential profiles in M87 and NGC1399

E.Churazov, W.Forman, A.Vikhlinin, S.Tremaine, O.Gerhard, C.Jones

Comments: Accepted for MNRAS. 19 pages; 14 figures; expanded version in response to comments from the referee

Subjects: Astrophysics (astro-ph)

[853] arXiv:0711.4693 [pdf, other]

Title: A Deep Catalog of Variable Stars in a 0.66deg^2 Lupus Field

David T. F. Weldrake (1), Daniel D. R. Bayliss (2) ((1) MPIA, Heidelberg (2) RSAA, Mount Stromlo Observatory)

Comments: 35 pages, 17 figures, accepted for publication in AJ

Subjects: Astrophysics (astro-ph)

[854] arXiv:0711.4700 [pdf, other]

Title: Galactic Dynamos and Galactic Winds

Rainer Beck (MPI fuer Radioastronomie, Bonn, Germany)

Comments: 8 pages, 7 figures. To be published in "The UV Window to the Universe", eds. A.I. Gomez de Castro and M. Castellanos, Ap&SS Special Issue, Springer, Berlin. Changed content (following referee report) April 2008

Journal-ref: Astrophys.Space Sci.320:77-84,2009

Subjects: Astrophysics (astro-ph)

[855] arXiv:0711.4715 [pdf, other]

Title: The RMS Survey: A Galaxy-wide Sample of Massive Young Stellar Objects

J. S. Urquhart (1), M. G. Hoare (1), S. L. Lumsden (1), R. D. Oudmaijer (1), T. J. T. Moore (2) ((1) University of Leeds) ((2) Liverpool John Moores University)

Comments: 8 pages, 3 figures, to appear in the proceedings for "Massive Star Formation: Observations confront Theory 2007" edited by H. Beuther

Journal-ref: ASP Conf.Ser.387:381,2008

Subjects: Astrophysics (astro-ph)

[856] arXiv:0711.4719 [pdf, other]

Title: Young stellar populations in the Magellanic Clouds

A. Vallenari

Comments: 5 pages, in XXI Century Challenges for Stellar Evolution, in "Memorie della Societa' Astronomica Italiana", Vol. 79 No. 2, eds. S. Cassisi & M. Salaris

Subjects: Astrophysics (astro-ph)

[857] arXiv:0711.4726 [pdf, other]

Title: Mean-field dynamo in a turbulence with shear and kinetic helicity fluctuations

N. Kleeorin, I. Rogachevskii

Comments: 12 pages, 3 Figures, small corrections to match the final published version, Physical Review E, in press

Journal-ref: Phys.Rev.E77:036307,2008

Subjects: Astrophysics (astro-ph)

[858] arXiv:0711.4750 [pdf, other]

Title: Microlensing search for extrasolar planets: observational strategy, discoveries and implications

Arnaud Cassan, Takahiro Sumi, Daniel Kubas (1. ARI Heidelberg University Germany, 2. Nagoya University Japan, 3. ESO Chile)

Comments: 4 pages, 2 figures. To appear in the proceedings of "IAU conference 249: Exoplanets: Detection, Formation and Dynamics", held in Suzhou, China, 22-26 Oct. 2007

Subjects: Astrophysics (astro-ph)

[859] arXiv:0711.4752 [pdf, other]

Title: Causal Relationships between Eruptive Prominences and Coronal Mass Ejections

Boris Filippov, Serge Koutchmy

Comments: 20 pages and 8 figures Invited paper presented at SoHO-20 in Gent (Aug. 2007), in press in Ann. Geophysicae

Subjects: Astrophysics (astro-ph)

[860] arXiv:0711.4757 [pdf, other]

Title: The cool supergiant population of the massive young star cluster RSGC1

Ben Davies (RIT), Don F. Figer (RIT), Casey J. Law (Amsterdam), Rolf-Peter Kudritzki (IfA, Hawaii), Francisco Najarro (CSIC, Madrid), Artemio Herrero (IAC, Spain), John W. MacKenty (STScI)

Comments: 31 pages, 11 figures. Accepted for publication in ApJ

Subjects: Astrophysics (astro-ph)

[861] arXiv:0711.4760 [pdf, other]

Title: VLTI/MIDI Observations of the Massive Protostellar Candidate NGC 3603 IRS 9A

Stefan Vehoff, Dieter E. A. Nuernberger, Christian A. Hummel, Wolfgang J. Duschl

Comments: 4 pages, 4 figures, Proceedings of "Massive Star Formation: Observations confront Theory", Heidelberg 2007, ed. H. Beuther

Subjects: Astrophysics (astro-ph)

[862] arXiv:0711.4772 [pdf, other]

Title: Modeling an accretion disc stochastical variability

T. Pechacek, V. Karas

Comments: Proceedings of the Workshop on the Black Holes and Neutron Stars, eds. S. Hledik and Z. Stuchlik, 19-21 September 2007 (Silesian University, Opava), in preparation

Subjects: Astrophysics (astro-ph)

[863] arXiv:0711.4773 [pdf, other]

Title: The polyhedral nature of LINERs: An XMM-Newton view of LINERs in radio galaxies

M. Gliozzi (1), L. Foschini (2), R.M. Sambruna (3), F. Tavecchio (4) ((1) GMU, (2) INAF/IASF-Bologna, (3) NASA GSFC, (4) INAF Milano)

Comments: 17 pages, 9 figures, 8 tables, accepted for publication in A&A

Subjects: Astrophysics (astro-ph)

[864] arXiv:0711.4779 [pdf, other]

Title: Dark Electric Matter Objects: History of Discovery, Modes of Interaction with Matter, Some Inferences and Prospects

E. M. Drobyshevski, M. E. Drobyshevski

Comments: The invited talk at the "Sixth International Heidelberg Conference on Dark Matter in Astro and Particle Physics (DARK-2007)" (Sydney, Australia, 23-28 September, 2007; this http URL), 12 pages,including 3 figures

Subjects: Astrophysics (astro-ph)

[865] arXiv:0711.4782 [pdf, other]

Title: The Peculiar Type Ib Supernova 2006jc: A WCO Wolf-Rayet Star Explosion

N. Tominaga, M. Limongi, T. Suzuki, M. Tanaka, K. Nomoto, K. Maeda, A. Chieffi, A. Tornambe, T. Minezaki, Y. Yoshii, I. Sakon, T. Wada, Y. Ohyama, T. Tanabé, H. Kaneda, T. Onaka, T. Nozawa, T. Kozasa, K. S. Kawabata, G. C. Anupama, D.K. Sahu, U.K. Gurugubelli, T.P. Prabhu, J. Deng

Comments: 12 pages, 11 figures. Accepted for publication in the Astrophysical Journal

Subjects: Astrophysics (astro-ph)

[866] arXiv:0711.4790 [pdf, other]

Title: Millihertz Oscillation Frequency Drift Predicts the Occurrence of Type I X-ray Bursts

D. Altamirano, M. van der Klis, R. Wijnands, A. Cumming

Comments: Accepted for publication in ApJ Letters - Uses emulateapj (misspelled author name corrected)

Subjects: Astrophysics (astro-ph)

[867] arXiv:0711.4791 [pdf, other]

Title: Enhanced high-energy neutrino emission from choked gamma-ray bursts due to meson and muon acceleration

Hylke B. J. Koers, Ralph A. M. J. Wijers

Comments: 4 pages, 1 figure, revtex4

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

[868] arXiv:0711.4794 [pdf, other]

Title: Stochastic Acceleration in the Western Hotspot of Pictor A

Zhong-Hui Fan, Siming Liu, Jian-Min Wang, Christopher L. Fryer, Hui Li

Comments: 12 pages, 2 figures. Accepted by ApJ Letters

Subjects: Astrophysics (astro-ph)

[869] arXiv:0711.4795 [pdf, other]

Title: Globular Clusters and Dwarf Spheroidal Galaxies

Sidney van den Bergh

Comments: MNRAS (Letters), in press

Subjects: Astrophysics (astro-ph)

[870] arXiv:0711.4801 [pdf, other]

Title: Properties of newly formed dust by SN2006jc based on near-to-mid infrared observation with AKARI

I. Sakon, T. Wada, Y. Ohyama, D. Ishihara, T. Tanabé, H. Kaneda, T. Onaka, N. Tominaga, M. Tanaka, T. Suzuki, H. Umeda, K. Nomoto, T. Nozawa, T. Kozasa, T. Minezaki, Y. Yoshii, S. Ohyabu, F. Usui, H. Matsuhara, T. Nakagawa, H. Murakami

Comments: 28 pages, 9 figures. Submitted to the Astrophysical Journal

Journal-ref: Astrophys.J.692:546-555,2009

Subjects: Astrophysics (astro-ph)

[871] arXiv:0711.4803 [pdf, other]

Title: Stellar Feedback in Dwarf Galaxy Formation

Sergey Mashchenko, James Wadsley, H. M. P. Couchman

Comments: Published online in Science (this http URL) on Nov. 29 2007; 20 pages, 9 figures

Subjects: Astrophysics (astro-ph)

[872] arXiv:0711.4807 [pdf, other]

Title: The circumstellar medium around a rapidly rotating, chemically homogeneously evolving, possible gamma-ray burst progenitor

Allard Jan van Marle, Norbert Langer, Sung-Chul Yoon, Guillermo Garcia-Segura

Comments: accepted by Astronomy & Astrophysics

Subjects: Astrophysics (astro-ph)

[873] arXiv:0711.4810 [pdf, other]

Title: Dark Energy in Light of the Cosmic Horizon

Fulvio Melia

Comments: Submitted to MNRAS

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

[874] arXiv:0711.4811 [pdf, other]

Title: Gravitational Lensing Characteristics of the Transparent Sun

Bijunath Patla, Robert J. Nemiroff

Subjects: Astrophysics (astro-ph)

[875] arXiv:0711.4815 [pdf, other]

Title: Aspherical Properties of Hydrodynamics and Nucleosynthesis in Jet-induced Supernovae

Nozomu Tominaga

Comments: 12 pages, 11 figures. Accepted for publication in the Astrophysical Journal

Journal-ref: Astrophys.J.690:526-536,2009

Subjects: Astrophysics (astro-ph)

[876] arXiv:0711.4822 [pdf, other]

Title: XMM-Newton observations of the Lockman Hole: X-ray source catalogue and number counts

H. Brunner, N. Cappelluti, G. Hasinger, X. Barcons, A. C. Fabian, V. Mainieri, G. Szokoly

Comments: 20 pages, 12 figures, source catalogue. Some figures compressed. Accepted by Astronomy and Astrophysics on 11/27/2007. Machine readable version on Vizie-R

Subjects: Astrophysics (astro-ph)

[877] arXiv:0711.4823 [pdf, other]

Title: The UV-Optical Color Magnitude Diagram II: Physical Properties and Morphological Evolution On and Off of a Star-Forming Sequence

David Schiminovich, Ted K. Wyder, D. Christopher Martin, Benjamin. D. Johnson, Samir Salim, Mark Seibert, Marie A. Treyer, Tamas Budavari, Charles Hoopes, Michel Zamojski, Tom A. Barlow, Karl G. Forster, Peter G. Friedman, Patrick Morrissey, Susan G. Neff, Todd A. Small, Luciana Bianchi, Jose Donas, Timothy M. Heckman, Young-Wook Lee, Barry F. Madore, Bruno Milliard, R. Michael Rich, Alex. S. Szalay, Barry Y. Welsh, Sukyoung K. Yi

Comments: 30 pages, 28 figures, scheduled to appear as part of the GALEX Special this http URL., December, 2007 (29 papers)

Subjects: Astrophysics (astro-ph)

[878] arXiv:0711.4833 [pdf, other]

Title: Clues to the Origin of the Mass-Metallicity Relation: Dependence on Star Formation Rate and Galaxy Size

Sara L. Ellison, David R. Patton, Luc Simard, Alan W. McConnachie

Comments: Accepted by ApJ Letters

Subjects: Astrophysics (astro-ph)

[879] arXiv:0711.4844 [pdf, other]

Title: On the variability of quasars: a link between Eddington ratio and optical variability?

B. C. Wilhite, R. J. Brunner, C. J. Grier, D. P. Schneider, D. E. Vanden Berk

Comments: 13 pages, 5 figures, Accepted for publication in MNRAS

Journal-ref: Mon.Not.Roy.Astron.Soc.383:1232-1240,2008

Subjects: Astrophysics (astro-ph)

[880] arXiv:0711.4845 [pdf, other]

Title: An Overdensity of i-dropouts Among A Population of Excess Field Objects in the Virgo Cluster

Haojing Yan (OCIW), Nimish Hathi (ASU), Rogier Windhorst (ASU)

Comments: Accepted for publication in ApJ

Journal-ref: Astrophys.J.675:136-145,2008

Subjects: Astrophysics (astro-ph)

[881] arXiv:0711.4848 [pdf, other]

Title: Corotation Resonance and Diskoseismology Modes of Black Hole Accretion Disks

Alexander S. Silbergleit, Robert V. Wagoner

Comments: 16 pages, no figures. Submitted to The Astrophysical Journal

Journal-ref: Astrophysical Journal 680, 1319 (2008)

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

[882] arXiv:0711.4850 [pdf, other]

Title: Dark Matter and Baryons in the Most X-ray Luminous and Merging Galaxy Cluster RX J1347.5-1145

Maruša Bradač (1 and 2), Tim Schrabback (3), Thomas Erben (3), Michael McCourt (1), Evan Million (1), Adam Mantz (1), Steve Allen (1), Roger Blandford (1), Aleksi Halkola (3), Hendrik Hildebrandt (3), Marco Lombardi (4 and 5), Phil Marshall (2), Peter Schneider (3), Tommaso Treu (2), Jean-Paul Kneib (6) ((1) KIPAC, Stanford, (2) UC Santa Barbara, (3) AIfA, Bonn, (4) ESO, (5) Universita degli Studi, Milano, (6) OAMP, Marseille)

Comments: 12 pages, Accepted for publication in ApJ, full-res version this http URL

Subjects: Astrophysics (astro-ph)

[883] arXiv:0711.4854 [pdf, other]

Title: Statefinder diagnostic for cosmology with the abnormally weighting energy hypothesis

Dao-Jun Liu, Wei-Zhong Liu

Comments: 5 pages, 4 figures, accepted by PRD

Journal-ref: Phys.Rev.D77:027301,2008

Subjects: Astrophysics (astro-ph)

[884] arXiv:0711.4855 [pdf, other]

Title: Reddening, Colour and Metallicity of the M31 Globular Cluster System

Z. Fan (1,2), J. Ma (1), R. de Grijs (3), Y. Yang (1), X. Zhou (1) ((1)National Astronomical Observatories, Chinese Academy of Sciences; (2)Graduate University of Chinese Academy of Sciences; (3)Department of Physics & Astronomy, The University of Sheffield, Sheffield)

Comments: Accepted for Publication in MNRAS, 18 pages, 13 figures

Subjects: Astrophysics (astro-ph)

[885] arXiv:0711.4856 [pdf, other]

Title: Habitable Climates

David S. Spiegel, Kristen Menou, Caleb A. Scharf (Columbia University)

Comments: Accepted by ApJ. Several references added. 41 pages, 11 figures, 2 tables

Subjects: Astrophysics (astro-ph)

[886] arXiv:0711.4858 [pdf, other]

Title: New insights into the nature of the SMC WR/LBV binary HD 5980

C. Foellmi, G. Koenigsberger, L. Georgiev, O. Toledano, S.V. Marchenko, P. Massey, T.H. Dall, A.F.J. Moffat, N. Morrell, M. Corcoran, A. Kaufer, Y. Naze, J. Pittard, N. St.-Louis, A. Fullerton, D. Massa, A.M.T. Pollock

Comments: 48 pages, 26 figures

Journal-ref: Rev.Mex.Astron.Astrofis.44:3-27,2008

Subjects: Astrophysics (astro-ph)

[887] arXiv:0711.4873 [pdf, other]

Title: Combining Visual and Photoelectric Observations of Semi-Regular Red Variables

T.T. Moon, S.A. Otero, L.L. Kiss

Comments: accepted for publication in the Journal of the AAVSO

Subjects: Astrophysics (astro-ph)

[888] arXiv:0711.4885 [pdf, other]

Title: Galaxy redshift abundance periodicity from Fourier analysis of number counts $N(z)$ using SDSS and 2dF GRS galaxy surveys

John G. Hartnett, Koichi Hirano

Comments: 15 pages, 22 figures, revised, accepted for publication in Ap&SS

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

[889] arXiv:0711.4886 [pdf, other]

Title: PSF calibration requirements for dark energy from cosmic shear

S. Paulin-Henriksson, A. Amara, L. Voigt, A. Refregier, S.L. Bridle

Comments: 13 pages, 4 figures, accepted by A&A

Subjects: Astrophysics (astro-ph)

[890] arXiv:0711.4888 [pdf, other]

Title: Searching for the Missing Baryons in the Warm-Hot Intergalactic Medium

X. Barcons (IFCA, Csic-Uc)

Comments: Proceedings of the "XMM-Newton: the next decade", to appear in Astronomische Nachrichten

Subjects: Astrophysics (astro-ph)

[891] arXiv:0711.4895 [pdf, other]

Title: The impact of going beyond the Maxwell distribution in direct dark matter detection rates

J. D. Vergados, S. H. Hansen, O. Host

Comments: 13 pages, 10 figures, accepted by Phys. Rev. D

Journal-ref: Phys.Rev.D77:023509,2008

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

[892] arXiv:0711.4901 [pdf, other]

Title: Observational Tests of Planet Formation Models

A. Sozzetti (1,2), G. Torres (1), D.W. Latham (1), B.W. Carney (3), J.B. Laird (4), R.P. Stefanik (1), A.P. Boss (5), D. Charbonneau (1), F.T. O'Donovan (6), M.J. Holman (1), J.N. Winn (7) ((1) CfA, (2) OATo, (3) UNC, (4) BGSU, (5) CIW, (6), NASA Goddard, (7) MIT)

Comments: 2 pages, no figures. To appear in the proceedings of "IAU conference 249: Exoplanets: Detection, Formation and Dynamics", held in Suzhou, China, 22-26 Oct. 2007

Subjects: Astrophysics (astro-ph)

[893] arXiv:0711.4903 [pdf, other]

Title: Testing Planet Formation Models with Gaia $\mu$as Astrometry

A. Sozzetti (1,2), S. Casertano (3), M.G. Lattanzi (2), A. Spagna (1), R. Morbidelli (2), R. Pannunzio (2), D. Pourbaix (4), D. Queloz (5) ((1) CfA, (2) OATo, (3) STScI, (4)ULB, (5)Geneva)

Comments: 4 pages, 1 figure. To appear in the proceedings of "IAU Symposium 248 - A Giant Step: from Milli- to Micro-arcsecond Astrometry", held in Shanghai, China, 15-19 Oct. 2007

Subjects: Astrophysics (astro-ph)

[894] arXiv:0711.4905 [pdf, other]

Title: Magnetic fields, spots and weather in chemically peculiar stars

O. Kochukhov

Comments: Invited review presented at the CP#Ap Workshop (Vienna, Austria, 2007)

Subjects: Astrophysics (astro-ph)

[895] arXiv:0711.4906 [pdf, other]

Title: Measuring the period of the delta Scuti variable U1425-01208594 in Cassiopeia

Jeremy Shears, David Boyd, Steve Brady, Ian Miller, Roger Pickard

Comments: Accepted for publication in the Open European Journal on Variable Stars. 4 pages, 4 figures

Subjects: Astrophysics (astro-ph)

[896] arXiv:0711.4907 [pdf, other]

Title: New generation model atmospheres for chemically peculiar stars

O. Kochukhov, D. Shulyak

Comments: submitted to Contrib. Astron. Obs. Skalnate Pleso (Proceedings of the CP#Ap Workshop, Vienna, 2007, eds. J. Ziznovsky, J. Zverko, E. Pauntzen, M. Netopil)

Subjects: Astrophysics (astro-ph)

[897] arXiv:0711.4908 [pdf, other]

Title: Zeeman split lines in CP stars: a discovery of low-contrast fields in slow rotators?

O. Kochukhov

Comments: submitted to Contrib. Astron. Obs. Skalnate Pleso (Proceedings of the CP#Ap Workshop, Vienna, 2007, eds. J. Ziznovsky, J. Zverko, E. Pauntzen, M. Netopil)

Subjects: Astrophysics (astro-ph)

[898] arXiv:0711.4912 [pdf, other]

Title: Massive Star Formation

Melvin G. Hoare, Jose Franco

Comments: 21 pages, 6 figures, chapter in Diffuse Matter from Star Forming Regions to Active Galaxies - A Volume Honouring John Dyson, Edited by T.W. Hartquist, J. M. Pittard, and S. A. E. G. Falle. Series: Astrophysics and Space Science Proceedings. Springer Dordrecht, 2007, p.61

Subjects: Astrophysics (astro-ph)

[899] arXiv:0711.4916 [pdf, other]

Title: Variable stars in the field of open cluster NGC 6939

G. Maciejewski, Ts. Georgiev, A. Niedzielski

Comments: 9 pages, 3 figures, accepted for publication in AN

Subjects: Astrophysics (astro-ph)

[900] arXiv:0711.4922 [pdf, other]

Title: Evolution of asymptotic giant branch stars II. Optical to far-infrared isochrones with improved TP-AGB models

Paola Marigo (1), Leo Girardi (2), Alessandro Bressan (2,3), Martin A.T. Groenewegen (4), Laura Silva (5), Gian Luigi Granato (2) ((1) Astronomy Department, Padova University, Italy, (2) Astronomical Observatory of Padova, INAF, Italy, (3) INAOE, Puebla, Mexico, (4) Instituut voor Sterrenkunde, KU Leuven, Belgium, (5) Astronomical Observatory of Trieste, INAF, Italy)

Comments: 25 pages, accepted for publication in A&A, revised according to the latest referee's indications, isochrones are available at this http URL

Journal-ref: Astron.Astrophys.482:883-905,2008

Subjects: Astrophysics (astro-ph)