Abstract
In this paper, we present a study of the cosmic flow from the point of view of how clusterings at different dynamical regimes in an expanding universe evolve according to a ‘coarse-grained’ partitioning of their ranked energy distribution. By analysing a lambda cold dark matter cosmological simulation from the Virgo Project, we find that cosmic flows evolve in an orderly sense, when tracked from their coarse-grained energy cells, even when non-linearities are already developed. We show that it is possible to characterize scaling laws for the pairwise velocity distribution in terms of the energy cells, generally valid at the linear and non-linear clustering regimes.
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