New data on A-type disk stars

被引：12

作者：

Abt, Helmut A. ^{[1
]}

机构：

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

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2008年 / 174卷 / 02期

关键词：

stars; emission-line; Be; stars : individual (HR 10); stars : mass loss;

D O I：

10.1086/522698

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

After a review of what has been learned to date about the Ti II disk lines at lambda lambda 3759 and 3761 in the spectra of rapidly rotating A dwarfs, new measures obtained during the past 10 yr are given. They show stars with quasi-periodic variations of 15-30 yr (as in Be stars) and probably longer. The star HR 10 has double disk lines that change relative strengths during 9 yr, consistent with the behavior found by others. They support the model by others of erratic longward components representing material falling onto the star.

引用

页码：499 / 503

页数：5

共 14 条

[1]

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

[2] Evidence for an interstellar origin of stellar shells [J].