How protostellar outflows help massive stars form

被引：124

作者：

Krumholz, MR

McKee, CF

Klein, RI

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[3] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

ASTROPHYSICAL JOURNAL | 2005年 / 618卷 / 01期

基金：

美国国家科学基金会;

关键词：

accretion; accretion disks; radiative transfer; stars : formation; stars; winds; outflows;

D O I：

10.1086/427555

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the effects of an outflow on radiation escaping from the infalling envelope around a massive protostar. Using numerical radiative transfer calculations, we show that outflows with properties comparable to those observed around massive stars lead to significant anisotropy in the stellar radiation field, which greatly reduces the radiation pressure experienced by gas in the infalling envelope. This means that radiation pressure is a much less significant barrier to massive star formation than has previously been thought.

引用

页码：L33 / L36

页数：4

共 30 条

[21]

SPITZER L, 1978, PHYSICAL PROCESSES I, P191

[22] THE COLLAPSE OF THE CORES OF SLOWLY ROTATING ISOTHERMAL CLOUDS [J].