The formation of a cluster of stars and brown dwarfs in a turbulent molecular cloud

被引：0

作者：

Bate, MR ^{[1
]}

Bonnell, IA ^{[1
]}

Bromm, V ^{[1
]}

机构：

[1] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England

来源：

ORIGINS OF STARS AND PLANETS: THE VLT VIEW | 2002年

关键词：

D O I：

10.1007/10856518_18

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present preliminary results from the first hydrodynamic calculation to follow the collapse and fragmentation of a large-scale turbulent molecular cloud into a stellar cluster while resolving beyond the opacity limit for fragmentation. The calculation produces a mixture of single and binary stars with comparable numbers of stars and brown dwarfs. Without exception, the brown dwarfs are formed by ejection from unstable multiple systems. The calculation produces a stellar initial mass function in agreement with observations. However, at this stage in the calculation, no high-mass (> 0.03 M-circle dot) brown dwarfs have been formed because they are ejected too soon after formation to have accreted much mass.

引用

页码：139 / 145

页数：7

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