On the correlation between spin parameter and halo mass

被引：52
|
作者：
Knebe, Alexander [1 ]
Power, Chris [2 ]
机构：
[1] Inst Astrophys, D-14482 Potsdam, Germany
[2] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia
来源：
ASTROPHYSICAL JOURNAL | 2008年 / 678卷 / 02期
关键词：
cosmology : theory; early universe; galaxies : formation; methods : numerical;
D O I：
10.1086/586702
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on a correlation between virial mass M and spin parameter lambda for dark matter halos forming at redshifts z greater than or similar to 10. We find that the spin parameter decreases with increasing halo mass. Interestingly, our analysis indicates that halos forming at later times do not exhibit such a strong correlation, in agreement with the findings of previous studies. We briefly discuss the implications of this correlation for galaxy formation at high redshifts and the galaxy population we observe today.
引用
收藏
页码：621 / 626
页数：6
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