LambdaCDM 宇宙学下超级簇的形状、多样性与演化
天体物理学
2008-11-26 v2
摘要
我们在从 z=0 到 z=2 的 LambdaCDM 共识宇宙学中，确定了超级簇的形状、多样性、大小和径向结构。超级簇被定义为我们大尺度宇宙模拟中簇群的簇。我们发现，超级簇呈三轴形状;许多簇自早期时期以来被压扁，成为目前接近二维结构，少数为纤状系统。presented at different redshifts. Supercluster sizes extend to scales of ~ 100 - 200 Mpc/h. The supercluster multiplicity (richness) increases linearly with supercluster size. The density profile in superclusters is approximately isothermal (~ R^{-2}) and steepens on larger scales. These results can be used as a new test of the current cosmology when compared with upcoming observations of large-scale surveys.
引用
@article{arxiv.astro-ph/0603060,
title = {The Shape, Multiplicity, and Evolution of Superclusters in LambdaCDM Cosmology},
author = {James J. Wray and Neta A. Bahcall and Paul Bode and Carl Boettiger and Philip F. Hopkins},
journal= {arXiv preprint arXiv:astro-ph/0603060},
year = {2008}
}
备注
33 pages, 15 figures, accepted to ApJ; minor content changes, some figures removed to shorten paper