The influence of the kinematic effects in dark matter on the formation of population of dark halos

摘要

The ACDM-model predicts an excess of dark halos compared to observations. The excess is seen from the estimates of the virialized mass inside the Local Supercluster and its surroundings. It is shown that it is possible to eliminate this contradiction remaining within the framework of the ACDM cosmology. This is possible if allowance is made for cosmological velocity fluctuations during the process of formation of the population of dark halos. Based on the formalism of Press and Schechter a model is suggested which allows a quantitative explanation for the observable deficit of the virialized mass in the local Universe.