2 papers
astro-ph2002
Do clusters of galaxies rotate?
Hrant M. Tovmassian
It is shown that the number of members, , and the linear radius of the Abell clusters at increase with redshift. The increase is caused by observational selection: th…
astro-ph2002
Dynamics of HCGs
H. M. Tovmassian, V. Chavushian, O. Martinez +2
It is shown that compact groups of galaxies (HCGs, ShCGS) are stable formations, in which principal member galaxies together with faint galaxies in their environment rotate in elon…