Other
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280...15d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 1, 1984, p. 15-25.
Other
18
Galactic Clusters, Galactic Radiation, X Ray Sources, Brightness, Galactic Evolution, Mass Distribution
Scientific paper
The aim of this paper is to study the Coma Cluster by taking into account as many dynamical properties of the cluster as possible. This leads to the improvement of previous Multi-Mass Models by removing the isothermal assumption and adding a second dynamical component accounting for the actual X-ray plasma. A great number of data have been jointly fitted: numerical density profiles, velocity dispersion versus magnitude or radius, small and large-scale X-ray surface brightness profiles. New results are then exhibited: a total mass 1.4 x 10 to the 15th solar mass (leading to a mass-to-light ratio of the galactic matter of 75 solar mass/solar luminosity with H-0 = 50 km/Mpc-s), a small extent of the intracluster medium, and a central enhancement in the numerical density profile of galaxies.
des Forets G.
Domínguez-Tenreiro Rosa
Gerbal Daniel
Mathez Guy
Mazure Alain
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