Cosmological simulations of the formation of primordial gas clouds

被引：0
|
作者：
Yoshida, N [1 ]
机构：
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
来源：
EMERGENCE OF COSMIC STRUCTURE | 2003年 / 666卷
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the formation of primordial star-forming clouds in a ACDM universe using large N-body/SPH simulations. The simulations include non-equilibrium 9 species (e(-), H, H+, He, He+, He++, H-2, H+, H-) chemistry and hydrogen molecular cooling. We determine that the critical 2 halo mass to form primordial star-forming clouds is 5 x 10(5)h(-1)M(circle dot), with a weak dependence on redshift in a range z > 16.
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页码：147 / 150
页数：4
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