The slow winds of A-type supergiants

被引：0

作者：

Granada, Anahi ^{[1
,2
,4
]}

Cure, Michel ^{[3
]}

Cidale, Lydia S. ^{[1
,2
]}

机构：

[1] Univ Nacl La Plata, Fac Ciencias Astron & Geofis, La Plata, Buenos Aires, Argentina

[2] UNLP, CONICET, CCT La Plata, Inst Astrofis La Plata, La Plata, Buenos Aires, Argentina

[3] Univ Valparaiso, Valparaiso, Chile

[4] Univ Geneva, Observ Geneve, Geneva, Switzerland

来源：

ACTIVE OB STARS: STRUCTURE, EVOLUTION, MASS-LOSS, AND CRITICAL LIMITS | 2011年 / 272期

关键词：

stars: supergiants; stars: winds; outflows; stars: mass loss; RADIATION-DRIVEN WINDS; MASS-LOSS; STARS;

D O I：

10.1017/S1743921311010258

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The line driven- and rotation modulated-wind theory predicts an alternative slow solution, besides from the standard m-CAK solution, when the rotational velocity is close to the critical velocity. We study the behaviour of the winds of A-type supergiants (Asg) and show that under particular conditions, e.g., when the 5 line-force parameter is about 0.25, the slow solution could exist over the whole star, even for the cases when the rotational speed is slow or zero. We discuss density and velocity profiles as well as possible observational conterparts.

引用

页码：184 / +

页数：2

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