A dynamic analysis of the Coma Berenices cluster of galaxies

Details A dynamic analysis of the Coma Berenices cluster of galaxies A dynamic analysis of the Coma Berenices cluster of galaxies

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981crasb.293..579d&link_type=abstract

Academie des Sciences (Paris), Comptes Rendus, Serie II - Mecanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Ter

Astronomy and Astrophysics

Astronomy

2

Astronomical Models, Dynamic Models, Galactic Clusters, Density Distribution, Galactic Structure, Mass Distribution, Radial Velocity, Stellar Luminosity, Thermal Emission

Scientific paper

The observational data which is used to define adjustments to a previous model (des Forets, 1981) of the behavior of a Coma cluster of galaxies are discussed. Density profiles have been calculated, comprising an average number of galaxies up to 18.3, as have calculations of the luminosity function. The quadratic velocity of the galaxies was obtained as a function of the radial distance and as a function of the masses of the galaxies, and the bolometric emission was found in correspondence to the thermal emission of the plasma. Among the observations were an optical core radius of 30 min, an X-ray core radius of 18 min, a total radius of the Coma of 3-deg, and a central mass density of about 10 to the minus 27 g/cu cm.

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