Growth of correlations in gravitational N-body simulations

Details Growth of correlations in gravitational N-body simulations Growth of correlations in gravitational N-body simulations

2004-01-13

arxiv.org/abs/astro-ph/0401238v1

Phys.Rev. D69 (2004) 123001

Astronomy and Astrophysics

Astrophysics

15 pages, 28 figures

Scientific paper

10.1103/PhysRevD.69.123001

In the gravitational evolution of a cold infinite particle distribution, two-body interactions can be predominant at early times: we show that, by treating the simple case of a Poisson particle distribution in a static universe as an ensemble of isolated two-body systems, one may capture the origin of the first non-linear correlated structures. The developed power-law like behavior of the two-point correlation function is then simply related to the functional form of the time evolved nearest-neighbor probability distribution, whose time dependence can be computed by using Liouville theorem for the gravitational two-body problem. We then show that a similar dynamical evolution is also found in a large-scale ordered distribution, which has striking similarities to the case of a cosmological CDM simulation which we also consider.

Affiliated with

Also associated with

No associations

Rating

Growth of correlations in gravitational N-body simulations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Growth of correlations in gravitational N-body simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Growth of correlations in gravitational N-body simulations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-266254