New magnetic field measurements of β Cephei stars and slowly pulsating B stars

被引：0

作者：

Hubrig, Swetlana ^{[1
]}

Briquet, M. ^{[2
]}

De Cat, P. ^{[3
]}

Schoeller, M. ^{[4
]}

Morel, T. ^{[5
]}

Ilyin, I. ^{[6
]}

机构：

[1] ESO, Santiago, Chile

[2] Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, Belgium

[3] Koninklijke Sterrenwacht Belgie, B-1180 Brussels, Belgium

[4] European So Observ, D-85748 Garching, Germany

[5] Univ Liege, Inst Astrophys & Geophys, B-4000 Liege, Belgium

[6] Astrophys Inst Potsdam, D-14482 Potsdam, Germany

来源：

COSMIC MAGNETIC FIELDS: FROM PLANETS, TO STARS AND GALAXIES | 2009年 / 259期

关键词：

Stars: variables: beta Cephei; stars: variables: SPBs; stars: oscillations; stars: Hertzsprung-Russell diagram; stars: magnetic fields; techniques:; polarimetric; stars: xi(1) CMa;

D O I：

10.1017/S1743921309030804

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of the continuation of our magnetic survey with FORS1 at the VLT of a sample of B-type stars consisting of confirmed or candidate beta Cephei stars and Slowly Pulsating B stars. Roughly one third of the studied beta Cephei stars have detected magnetic fields. The fraction of magnetic Slowly Pulsating B and candidate Slowly Pulsating B stars is found to be higher, tip to 50%. We find that the domains of magnetic and non-magnetic pulsating stars, in the H-R diagram largely overlap, and no clear picture emerges as to the possible evolution of the magnetic field across the main sequence.

引用

页码：389 / +

页数：2

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