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arXiv 1302.0344astro-ph.SR
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快速旋转B型星的星震学展望

Prospects for asteroseismology of rapidly rotating B-type stars

Hideyuki Saio

摘要:

在快速旋转的恒星中,科里奥利力和离心变形改变了振荡的性质;科里奥利力对低频模式很重要,而离心变形主要影响p模式。在这里,我们讨论的g-和r-模式振荡的性质在旋转的恒星。在快速旋转的恒星中激发的高阶g模(和r模)的预测频谱显示了与方位阶$m$相关的频率分组。我们比较这些属性与快速旋转的Be星的观测,并讨论从这种比较中学到了什么。

英文摘要:

In rapidly rotating stars Coriolis forces and centrifugal deformations modify the properties of oscillations; the Coriolis force is important for low-frequency modes, while the centrifugal deformation affects mainly p-modes. Here, we discuss properties of g- and r-mode oscillations in rotating stars. Predicted frequency spectra of high-order g-modes (and r-modes) excited in rapidly rotating stars show frequency groupings associated with azimuthal order $m$. We compare such properties with observations in rapidly rotating Be stars, and discuss what is learnt from such comparisons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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