Expected distribution of 'hidden' mass in rich clusters of galaxies

Details Expected distribution of 'hidden' mass in rich clusters of galaxies Expected distribution of 'hidden' mass in rich clusters of galaxies

Nov 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975pazh....1....8b&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal, vol. 1, Nov. 1975, p. 8-14. In Russian.

Astronomy and Astrophysics

Astronomy

1

Galactic Clusters, Intergalactic Media, Mass Distribution, Coronas, High Temperature Gases, X Ray Astronomy

Scientific paper

The expected distribution of the 'hidden' mass necessary for the stability of spherically symmetric clusters is determined using the distribution of visible galaxies in the Coma cluster. Calculations are made for the case of localization of the hidden mass in massive galactic coronae as well as for the case of its collective distribution throughout all the intergalactic space of the cluster. In both cases, the distribution of hidden mass in the cluster volume may differ noticeably from the distribution of visible galaxies. It is noted that future X-ray observations of the structure of the hot gas in clusters may be employed to choose between the alternatives of coronal and intergalactic localization of the hidden mass.

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