.png){kind=icon}
返回
Competitive accretion in embedded stellar clusters
.png){kind=icon}
OA
AI
DOI：10.1046/j.1365-8711.2001.04270.x.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
We investigate the physics of gas accretion in young stellar clusters. Accretion in clusters is a dynamic phenomenon as both the stars and the gas respond to the same gravitational potential. Accretion rates are highly non-uniform with stars nearer the centre of the cluster, where gas densities are higher, accreting more than others. This competitive accretion naturally results in both initial mass segregation and a spectrum of stellar masses. Accretion in gas-dominated clusters is well modelled using a tidal-lobe radius instead of the commonly used Bondi-Hoyle accretion radius. This works as both the stellar and gas velocities are under the influence of the same gravitational potential and are thus comparable. The low relative velocity which results means that R(tidal) < R(BH) in these systems. In contrast, when the stars dominate the potential and are virialized, R(BH) < R(tidal) and Bondi-Hoyle accretion is a better fit to the accretion rates.
Keyword:
stars : formation
stars : luminosity function, mass function
open clusters and associations : general
期刊
IF:
4.8
论文数:
7.1W
被引数:
25.0W
机构
暂无机构信息
引用论文
The electrophoretic mobility of hydrocarbon particles in potassium chloride solutions.png)
Langmuir
LangmuirIF0
PREAI
分享收藏
分享收藏
查看更多内容