Stability of Hickson Groups of Galaxies

Details Stability of Hickson Groups of Galaxies Stability of Hickson Groups of Galaxies

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008tjph...32..133s&link_type=abstract

Turkish Journal of Physics, vol. 32, Issue 3, p.133-137

Physics

Galaxies, Compact Groups, Luminosity, Masses

Scientific paper

In this work we have used the Viril theorem to investigate the dynamical stability of Hickson compact groups of galaxies. The average luminous mass of the galaxies member is approximately 1.3 times 011 Modot and average total luminous mass of group is approximately 4.6 times 011 Modot. The virial theorem has used to estimate the virial mass. The average Virial mass of group of galaxies is approximately 6.3 times 013 Modot This is attributed to the presence of large amount of dark matter which is more than 90% in this group. Hickson compact groups of galaxies are unstable system due to the virial to luminous masses ratio.

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