X-ray emission from E and S0 galaxies with compact nuclear radio sources

Details X-ray emission from E and S0 galaxies with compact nuclear radio sources X-ray emission from E and S0 galaxies with compact nuclear radio sources

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...291..668d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 291, April 15, 1985, p. 668-676.

Astronomy and Astrophysics

Astronomy

29

Elliptical Galaxies, Galactic Nuclei, Radio Galaxies, Spiral Galaxies, X Ray Astronomy, X Ray Sources, Compton Effect, Heao 2, Interstellar Matter, Mass To Light Ratios, Quasars, Velocity Distribution

Scientific paper

The imaging proportional counter on the Einstein Observatory has been used to search for X-ray emission from 13 nearby E and S0 galaxies with compact nuclear radio sources. Five galaxies with X-ray luminosity of about 10 to the 41st ergs/s were detected, and one of them was resolved. These galaxies and a few similar ones observed by others are compared to a sample of radio-quiet E and S0 galaxies. The radio-emitting galaxies have consistently greater X-ray luminosities per unit of optical luminosity than most radio-quiet galaxies. Possible emission mechanisms and models for the resolved source, for the most powerful source, and for the class of E/S0 galaxies with active nuclei are discussed.

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