Evidence for an interstellar origin of stellar shells

被引：8

作者：

Abt, HA ^{[1
]}

机构：

[1] Kitt Peak Natl Observ, Tucson, AZ 85726 USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 603卷 / 02期

基金：

美国国家科学基金会;

关键词：

circumstellar matter; ISM : bubbles; ISM : structure; stars : rotation;

D O I：

10.1086/382152

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that the hot inner disks around rapidly rotating BA dwarfs ( stars conventionally called shell stars) are accreted from the interstellar medium because such disks rarely occur around stars within the heart of the local interstellar bubble, which has less than 10% of the density surrounding it. A working model is one in which stars accrete disks in dense interstellar regions, but in regions of low interstellar density, such as the local interstellar bubble, the stellar winds exceeds the accretion rate.

引用

页码：L109 / L111

页数：3

共 13 条

[1]

Abt H. A., 1965, ApJS, V11, P429, DOI [10.1086/190120, DOI 10.1086/190120]

[2] THE RELATION BETWEEN ROTATIONAL VELOCITIES AND SPECTRAL PECULIARITIES AMONG A-TYPE STARS [J].