Fragmentation of the primordial gas clouds and the lower limit on the mass of the first stars

被引：67

作者：

Uehara, H ^{[1
]}

Susa, H ^{[1
]}

Nishi, R ^{[1
]}

Yamada, M ^{[1
]}

Nakamura, T ^{[1
]}

机构：

[1] KYOTO UNIV,YUKAWA INST THEORET PHYS,KYOTO 60601,JAPAN

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 473卷 / 02期

基金：

日本学术振兴会;

关键词：

galaxies; formation; molecular processes; stars;

D O I：

10.1086/310409

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the fragmentation of primordial gas clouds in the universe after decoupling. Comparing the timescale of collapse with that of fragmentation, we obtain the typical mass of a fragment both numerically and analytically. We show that the estimated mass gives the minimum mass of a fragment that is formed from the primordial gas cloud and essentially determined by the Chandrasekhar mass.

引用

页码：L95 / L98

页数：4

共 30 条

[1]

BENNETT DP, 1996, P DARK MATT C

[2] AN ESTIMATE OF THE MASS OF ZERO METAL STARS [J].