旋转 B 型星中慢模式的激发与可见性
天体物理学
2008-11-26 v1
摘要
我们采用传统近似来描述与角速度相当的振荡频率。讨论了该近似在主序 B 星中的有效性。present numerical results regarding mode stability and visibility are presented for a model of the Be star HD 163868. For this object, Walker et al.(2005) detected a record number of mode frequencies using data from the small space telescope MOST. Our interpretation of these data differs from that of Walker et al. In particular, we interpret peaks in the lowest frequency range as retrograde g modes. We find instability in a large number of modes that remain undetectable because of unfavourable aspect and/or effect of cancellation. There is no clear preference to excitation of prograde modes.
引用
@article{arxiv.astro-ph/0611171,
title = {Excitation and visibility of slow modes in rotating B-type stars},
author = {W. A. Dziembowski and J. Daszynska-Daszkiewicz and A. A. Pamyatnykh},
journal= {arXiv preprint arXiv:astro-ph/0611171},
year = {2008}
}
备注
9 pages, 3 figures, accepted for publication in MNRAS