Diffuse X-ray Emission from E/S0 Galaxies

Details Diffuse X-ray Emission from E/S0 Galaxies Diffuse X-ray Emission from E/S0 Galaxies

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.9209m&link_type=abstract

American Astronomical Society Meeting 205, #92.09; Bulletin of the American Astronomical Society, Vol. 36, p.1491

Astronomy and Astrophysics

Astronomy

Scientific paper

We analyze the diffuse X-ray emission from a sample of nearby (D < 25 Mpc) galaxies in the Chandra archive. Using multiple component spectral analysis, we derive temperature and luminosity values for this emission and demonstrate that nearby, early-type galaxies contain a measurable diffuse component down to the lowest blue luminosity galaxies available in the archive (LB=7.4). We find an average temperature for the diffuse emission of kT=0.366± 0.207 keV. We fit a variety of luminosity relations and compare our results with previous catalogs. In particular, we derive a value of 1.37± 0.19 for the slope of the LX:L_B relation and find that the evidence for a break in this relation is not strong in our sample.

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