An X-ray study of M51 (NGC 5194) and its companion (NGC 5195)

Details An X-ray study of M51 (NGC 5194) and its companion (NGC 5195) An X-ray study of M51 (NGC 5194) and its companion (NGC 5195)

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40..643p&link_type=abstract

(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews

Astronomy and Astrophysics

Astronomy

Galactic Nuclei, X Ray Astronomy, X Ray Sources, Luminosity, Point Sources, Seyfert Galaxies

Scientific paper

Observations of NGC 5194/95 with the Einstein HRI show a very strong nuclear X-ray source, surrounded by a diffuse flux, three point sources, and the companion. The diffuse flux, which correlates well with the radio continuum, is likely to originate from the disk population with an age of approximately 2.1 billion yrs. The large luminosity from the nuclear source, together with optical and radio observations, shows that it belongs to the low luminosity active nuclei, thus extending this class to luminosities of less than about 10 to the 40th erg/s.

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