Friday, September 18, 2009

Interesting Astrophysics: Sep 16 to Sep 18

Both ram-pressure stripping and the neutral hydrogen content of galaxies stand out as topics this week. The issue of what are the elemental abundances in the Sun continues to elude solution.


Galaxies and Starbursts

Ram pressure stripping of disk galaxies in galaxy clusters
E. Roediger, arXiv:0909.2638 [pdf, other]
Comments: 11 pages, 4 figures, to appear in proceedings of symposium "Matter Cycles of Galaxies in Clusters" at JENAM 2008 (Vienna, Sept 2008), to be published in special issue of Astronomische Nachrichten in Nov 2009. Version with full resolution figures at this http URL

Infrared Luminosities and Dust Properties of z ~ 2 Dust-Obscured Galaxies
R. S. Bussmann, Arjun Dey, C. Borys, V. Desai, B. T. Jannuzi, E. Le Floc'h, J. Melbourne, K. Sheth, B. T. Soifer, arXiv:0909.2650 [ps, pdf, other]
Comments: 16 pages, 7 figures, 6 tables; accepted to the ApJ

Setting the normalcy level of HI properties in isolated galaxies
D. Espada, L. Verdes-Montenegro, E. Athanassoula, A. Bosma, W. K. Huchtmeier, S. Leon, U. Lisenfeld, J. Sabater, J. Sulentic, S. Verley, M. Yun, arXiv:0909.2736 [ps, pdf, other]
Comments: 4 pages, 2 figures, Conference 'Galaxies in Isolation: Exploring Nature vs. Nurture', Granada, 12-15 May 2009. To be published in the ASP Conference Series

Only the Lonely: HI Imaging of Void Galaxies
K. Stanonik, E. Platen, M. A. Aragon-Calvo, J. H. van Gorkom, R. van de Weygaert, J. M. van der Hulst, K. Kovac, C.-W. Yip, P. J. E. Peebles, arXiv:0909.2869 [ps, pdf, other]
Comments: 4 pages, to be published in the proceedings of the conference "Galaxies in Isolation" (12-15 May 2009; Granada, Spain)

Low-column density HVC and IVC gas in the halo of the Milky Way
N. Ben Bekhti, P. Richter, M. T. Murphy, arXiv:0909.2797 [ps, pdf, other]
Comments: 4 pages, 2 figures, in proceedings of "Panoramic Radio Astronomy: Wide-field 1-2 GHz research on galaxy evolution - PRA2009"

Does Stellar Feedback Create HI Holes? An HST/VLA Study of Holmberg II
Daniel R. Weisz, Evan D. Skillman, John M. Cannon, Andrew E. Dolphin, Robert C. Kennicutt Jr., Jance Lee, Fabian Walter, arXiv:0909.3025 [ps, pdf, other]
Comments: Accepted for Publication in The Astrophysical Journal; 28 Pages, 31 Figures, a version of this paper with full resolution figures is available at this http URL

The Tail of the Stripped Gas that Cooled: HI, Halpha and X-ray Observational Signatures of Ram Pressure Stripping
Stephanie Tonnesen, Greg L. Bryan, arXiv:0909.3097 [ps, pdf, other]
Comments: 18 pages, 11 figures, submitted to ApJ

Dust Emissivity Variations In the Milky Way
D. Paradis, J.-Ph. Bernard, C. Meny, arXiv:0909.3236 [ps, pdf, other]
Comments: 16 pages, 6 figures, accepted in A&A


Black Holes and AGN

A strong excess in the 20-100 keV emission of NGC 1365
G. Risaliti, V. Braito, V. Laparola, S. Bianchi, M. Elvis, G. Fabbiano, R. Maiolino, G. Matt, J. Reeves, M. Salvati, J. Wang, arXiv:0909.2820 [ps, pdf, other]
Comments: 13 pages, 3 figures. Accepted for publication in ApJ Letters

XMM-Newton Observations of a Complete Sample of Optically Selected Type 2 Seyfert Galaxies
Stephanie M. LaMassa, Timothy M. Heckman, Andrew A. Ptak, Ann Hornschemeier, Lucimara Martins, Paule Sonnentrucker, Christy Tremonti, arXiv:0909.3044 [ps, pdf, other]
Comments: accepted for publication to ApJ; 48 pages, 15 figures


Stars, Supernovae and Planets

New Solar Composition: The Problem With Solar Models Revisited
Aldo Serenelli, Sarbani Basu, Jason W. Ferguson, Martin Asplund, arXiv:0909.2668 [ps, pdf, other]
Comments: 11 pages, including 3 tables and 2 figures. Submitted to ApJL

From their abstract: "We find the improved input physics in the models has minor effects on the solar model structure and we confirm that the model using high (older) metallicity determinations gives consistent results with helioseismology."


Public Understanding of Science

Galaxy Zoo: Exploring the Motivations of Citizen Science Volunteers
M. Jordan Raddick, Georgia Bracey, Pamela L. Gay, Chris J. Lintott, Phil Murray, Kevin Schawinski, Alexander S. Szalay, Jan Vandenberg, arXiv:0909.2925 [pdf, other]
Comments: 15 pages, 3 figures

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