标题： OB型星的巨湍流是否与脉动有关？ 显示英文标题

标题： Is macroturbulence in OB Sgs related to pulsations?

摘要： 作为一项长期观察项目的一部分，我们正在研究O型和B型超巨星(Sgs)中的宏观湍流展宽及其与光谱变异性现象和恒星振荡的可能联系。 我们介绍了项目的初步结果，即在13个光谱类型从O9.5到B8的Sgs样本中，额外展宽与光球线轮廓变化之间存在强烈相关的可靠观测证据。 显示英文摘要

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.