Evaporation and Excess X-Ray Emission from the Central Giant Galaxy in a Cluster of Galaxies

Details Evaporation and Excess X-Ray Emission from the Central Giant Galaxy in a Cluster of Galaxies Evaporation and Excess X-Ray Emission from the Central Giant Galaxy in a Cluster of Galaxies

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pthph..62.1253t&link_type=abstract

Progress of Theoretical Physics, Vol. 62, No. 5, pp. 1253-1265

Physics

25

Scientific paper

Evaporation of gas from the central giant galaxy in a cluster of galaxies is investigated in connection with the point source in its extended X-ray source. We calculate the stationary outflow of the gas supplied by the stellar mass loss and heated by the conduction from the hot intracluster gas. The central point source identified with M87 in the Virgo cluster of galaxies can be well explained by the X-ray emission from the outflowing gas in the central massive galaxy. However, the point source identified with NGC 1275 in the Perseus cluster of galaxies can be explained only if the central galaxy is as massive as 1013M&sun; and its three-dimensional velocity dispersion exceeds 103 km/sec.

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