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astro-ph1999
Mass Distribution in Compact Groups
J. Perea, A. del Olmo, L. Verdes-Montenegro +3
New redshift surveys of galaxies in the field of compact groups have discovered a population of faint galaxies which act as satellites orbiting in the potential well of the bright…
astro-ph1999
On two mass estimators for clusters of galaxies
H. Aceves, J. Perea
The two most common mass estimators that use velocity dispersions and positions of objects in a stellar system, the virial mass estimator (VME) and the projected mass estimator (PM…