Statistical Mechanics of the Cosmological Many-body Problem

摘要

The statistical mechanical description of the cosmological many-body problem is reviewed in light of the recent advances [1, 2, 3]. This description makes it possible to take into account the extended nature of galaxies, include the effect of higher order contributions, allow a description for the two-component system of galaxies and possibly account for a fraction of the dark matter in the Universe, besides providing a more fundamental basis for the earlier results. The spatial galaxy distribution function is shown as a powerful statistic showing excellent agreement with observations and N-body simulation results.