Diffuse X-ray Emission in Groups of Galaxies

Details Diffuse X-ray Emission in Groups of Galaxies Diffuse X-ray Emission in Groups of Galaxies

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...185.7417m&link_type=abstract

American Astronomical Society, 185th AAS Meeting, #74.17; Bulletin of the American Astronomical Society, Vol. 26, p.1429

Astronomy and Astrophysics

Astronomy

Scientific paper

Diffuse x-ray emission has now been discovered in over a dozen poor groups of galaxies with the ROSAT PSPC. The temperature of the x-ray emitting gas is ~ 1 keV, with low metal abundances implied in some cases. These properties are similar to those found in the NGC 2300 group. Under the assumption that the gas is in hydrostatic equilibrium, the x-ray observations can be used to estimate the total masses of these systems. We provide a summary of the x-ray and optical properties of x-ray detected groups and compare them to clusters of galaxies.

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