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arXiv 1009.3752astro-ph.SR
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OB SG中的宏观湍流与脉动有关吗?

Is macroturbulence in OB Sgs related to pulsations?

S. Simón-Díaz, A. Herrero, K. Uytterhoeven, N. Castro, C. Aerts, J. Puls

摘要:

作为长期观测项目的一部分,我们正在研究O和B超巨星(Sgs)的宏观湍流增宽及其与光谱变化现象和恒星振荡的可能联系。我们提出了我们的项目的第一个结果,即坚定的观测证据之间的强相关性的额外的扩大和光球线轮廓变化的样本13 SGS光谱类型范围从O9.5到B8。

英文摘要:

As part of a long term observational project, we are investigating the macroturbulent broadening in O and B supergiants (Sgs) and its possible connection with spectroscopic variability phenomena and stellar oscillations. We present the first results of our project, namely firm observational evidence for a strong correlation between the extra broadening and photospheric line-profile variations in a sample of 13 Sgs with spectral types ranging from O9.5 to B8.

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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