模拟星系簇中的偏心率演化
天体物理学
2009-11-07 v3
摘要
各种观测数据集中出现了 z \le 0.13 的强烈簇偏心率演化。我们使用多种仿真方法、�幅归一化和背景宇宙学，对模拟星系簇的偏心率演化进行探讨。在我们的所有仿真集合中，我们没有在 z < 0.1 的任何情况下发现这种演化。我们建议簇目录中的选择效应或簇仿真中缺失的对修改簇形态足够重要的物理学科系系统误差。
引用
@article{arxiv.astro-ph/0301547,
title = {Eccentricity Evolution in Simulated Galaxy Clusters},
author = {Stephen Floor and Adrian Melott and Christopher Miller and Greg Bryan},
journal= {arXiv preprint arXiv:astro-ph/0301547},
year = {2009}
}
备注
Revised version to be published in ApJ. Moderate revisions, including additional N-body simulations with varying amplitude normalization and background matter density within OCDM and $\lambda$CDM scenarios reinforce our conclusion that observed clusters have recently relaxed much more rapidly than simulated ones