Halo Pairs in the Millennium Simulation: Love & Deception
Cosmology and Nongalactic Astrophysics
2011-12-02 v1
Abstract
In this work I investigate the statistical properties of a huge catalog of closely interacting pairs of dark matter haloes, extracted from the Millennium Simulation database. Only haloes that reach a minimum mass greater than 8.6 \times 10^10 Msun/h (corresponding to 100 particles) are considered. Close pairs are selected if they come within a critical distance dcrit. I explore the effects of replacing dcrit = 1 Mpc/h with 200 kpc/h on the evolution of separations, lifetimes, total masses and mass ratios of these pairs.
Keywords
Cite
@article{arxiv.1112.0010,
title = {Halo Pairs in the Millennium Simulation: Love & Deception},
author = {Jorge Moreno},
journal= {arXiv preprint arXiv:1112.0010},
year = {2011}
}
Comments
To appear on the Proceedings of the Conference "Galaxy Mergers in an Evolving Universe", held in Hualien, Taiwan, on October 23-28, 2011