Magnetic main sequence stars as progenitors of blue supergiants

被引：0
作者：
Petermann, I [1 ]
Castro, N. [1 ]
Langer, N. [1 ]
机构：
[1] Argelander Inst Astron, Bonn, Germany
来源：
NEW WINDOWS ON MASSIVE STARS: ASTEROSEISMOLOGY, INTERFEROMETRY AND SPECTROPOLARIMETRY | 2014年 / 307卷
关键词：
Stars: massive; Stars: supergiants; Stars: magnetic field; Stars: evolution; FIELD;
D O I：
10.1017/S1743921314007224
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Blue supergiants (BSGs) to the right the main sequence band in the HR diagram can not be reproduced by standard stellar evolution calculations. We investigate whether a reduced convective core mass due to strong internal magnetic fields during the main sequence might be able to recover this population of stars. We perform calculations with a reduced mass of the hydrogen burning convective core of stars in the mass range 3 - 30 M-circle dot in a parametric way, which indeed lead to BSGs. It is expected that these BSGs would still show large scale magnetic fields in the order of 10 G.
引用
收藏
页码：391 / 392
页数：2
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