ASCA Observations of Low-Luminosity Elliptical Galaxies

Details ASCA Observations of Low-Luminosity Elliptical Galaxies ASCA Observations of Low-Luminosity Elliptical Galaxies

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...187.9506l&link_type=abstract

American Astronomical Society, 187th AAS Meeting, #95.06; Bulletin of the American Astronomical Society, Vol. 27, p.1421

Astronomy and Astrophysics

Astronomy

Scientific paper

The ASCA satellite, with its moderate energy resolution and broad bandpass x-ray detectors, has provided many new insights into the nature of the x-ray emission from elliptical galaxies. While the emission from luminous galaxies is dominated by ~ 0.7 keV hot gas, a hard component is present and sometimes dominant in fainter systems. I will discuss the nature of this hard component, the implications of these observations for the dark-to-luminous mass ratio in elliptical galaxies, and their impact on our understanding of the scatter in the x-ray vs. optical luminosity relationship.

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