Diffuse Hot Gas in NGC 3351 and NGC 4736

Details Diffuse Hot Gas in NGC 3351 and NGC 4736 Diffuse Hot Gas in NGC 3351 and NGC 4736

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344507l&link_type=abstract

American Astronomical Society, AAS Meeting #213, #445.07; Bulletin of the American Astronomical Society, Vol. 41, p.329

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of a study of the diffuse X-ray emission emanating from the central regions of two spiral galaxies, NGC 3351 and NGC 4736. We fit thermal models to the X-ray spectrum and derive measures of the temperature, density and pressure of the hot gas. We find evidence that the hot gas in the bulges of these galaxies is overpressured with respect to the rest of the ISM. We also find that the bulge properties are consistent with the idea that diffuse X-ray emission in galaxies is strongly associated with regions of massive star formation. This work was supported by the National Science Foundation's REU program and the Department of Defense's ASSURE program through NSF Award AST-0453442.

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