Friday, May 22, 2009

Interesting Astrophysics: Mar 18 to Mar 22

Not one but three theoretical papers with some relevance to galactic winds this week, although all quite different types of winds. Dogiel and Breitschwerdt discuss cosmic-ray -driven winds, Silich et al further explore their radiative (thermal) star cluster wind solution, and Kurosawa and Proga discuss AGN-driven winds.

In addition to this windy goodness there are also a variety of interesting papers on galaxies, LINERs, IFU spectroscopy, and gas-phase element depletion factors. Enjoy!

There will not be an edition of "Interesting Astrophysics" next week as I'll be away all week at the The Chemical Enrichment of the Intergalactic Medium meeting in Leiden.

Galaxies and Starbursts

A Young Super Star Cluster in the Nuclear Region of NGC 253
Kornei, Katherine A., McCrady, Nate, 2009, ApJ, 697, 1180
PDF (406 KB) | HTML

A Super Bubble Candidate in the Galactic Center and a Local Enhancement G359.77-0.09
Hideyuki Mori, Yoshiaki Hyodo, Takeshi Go Tsuru, Masayoshi Nobukawa, Katsuji Koyama, arXiv:0905.2725 [ps, pdf, other]
Comments: 9 pages, 7 figures, accepted for publication in PASJ

Extragalactic chemical abundances: do HII regions and young stars tell the same story? The case of the spiral galaxy NGC 300
Fabio Bresolin, Wolfgang Gieren, Rolf-Peter Kudritzki, Grzegorz Pietrzynski, Miguel A. Urbaneja, Giovanni Carraro, arXiv:0905.2791 [pdf, other]
Comments: Accepted for publication in The Astrophysical Journal

Cosmic Rays in the Disk and Halo of Galaxies
V.Dogiel, D. Breitschwerdt, arXiv:0905.3071 [ps, pdf, other]
Comments: Accepeted in ESA Publication Series, 2009

Personally I disagree with attempting to lump theoretical model CR-driven galactic winds in with the winds we actually see in actively star-forming galaxies, for which we have good evidence that they're gas pressure-driven galactic winds (i.e. by supernova and stellar winds). CRs are present in starburst-driven winds, but they're not energetically dominant, and CR-driven wind solutions have quite distinctively different kinematics from observations and theory of starburst-driven winds.

On the Heating Efficiency Derived from Observations of Young Super Star Clusters in M82
Sergiy Silich, Guillermo Tenorio-Tagle, Ana Torres Campos, Casiana Munoz-Tunon, Ana Monreal-Ibero. Veronica Melo, arXiv:0905.3192 [ps, pdf, other]
Comments: 15 pages, 3 figures, accepted for publication in The Astrophysical Journal

Ah, but the real question is how significant are the most massive clusters to the total star formation rate in M82 starburst region? Ultimately, not that significant, as least that is what we concluded (Strickland & Heckman, 2009, ApJ, 697, 2030).

Line and Continuum Emission from the Galactic Center. III. Origin of 6.4 keV Line Emission from Molecular Clouds in the Galactic Center
Vladimir Dogiel, Kwong-Sang Cheng, Dmitrii Chernyshov, Aya Bamba, Atsushi Ichimura, Hajime Inoue, Chung-Ming Ko, Motohide Kokubun, Yoshitomo Maeda, Kazuhisa Mitsuda, Noriko Y. Yamasaki, arXiv:0905.3075 [ps, pdf, other]
Comments: Accepted in PASJ, to be published in PASJ Vol.61 No.5, 2009

Star formation and nuclear activity in close pairs of early-type galaxies
Ben Rogers, Ignacio Ferreras, Sugata Kaviraj, Anna Pasquali, Marc Sarzi, arXiv:0905.3386 [ps, pdf, other]
Comments: 11 pages, 9 figures, 1 table. Submitted for publication in MNRAS

Black Holes and AGN

On the large-scale outflows in active galactic nuclei: consequences of coupling the mass-supply rate and accretion luminosity
Ryuichi Kurosawa, Daniel Proga, arXiv:0905.2965 [ps, pdf, other]
Comments: 14 pages, 7 figures, accepted for publication in MNRAS

An X-ray view of 82 LINERs with Chandra and XMM-Newton data
O. Gonzalez-Martin, J. Masegosa, I. Marquez, M. Guainazzi, E. Jimenez-Bailon, arXiv:0905.2973 [pdf]
Comments: Accepted for publications in Astronomy and Astrophysics, 49 pages, 12 figures. Catalogs only at: this http URL


The integral field spectroscopy (IFS) wiki
M.S. Westmoquette, K.M. Exter, L. Christensen, M. Maier, M. Lemoine-Busserolle, J. Turner, T. Marquart, arXiv:0905.3054 [pdf, other]
Comments: This article accompanies the opening of the IFS wiki site this http URL

The Interstellar Medium

A Unified Representation of Gas-Phase Element Depletions in the Interstellar Medium
Edward B. Jenkins, arXiv:0905.3173 [ps, pdf, other]
Comments: 166 pages, 21 figures, pages 116-166 contain detailed tabulations that may not be of interest to most readers. Accepted for publication in the Astrophysical Journal

Its only 166 pages! Get reading now.

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