恒星告诉我们关于行星的什么？外行星宿主星的星震学
What do stars tell us about planets? Asteroseismology of exoplanet-host stars
摘要：
与没有探测到行星的类似恒星相比，研究系外行星宿主恒星的内部结构对于理解行星形成特别重要。在这方面，观测到的具有行星的恒星的平均金属丰度是一个有趣的问题。在这一框架内，星震研究是一个很好的工具，可以用来确定有和没有探测到行星的恒星之间的结构差异。它还导致更精确的恒星参数值，如质量，重力，有效温度，比那些从光谱单独获得。有趣的是，恒星振荡的探测是用与发现系外行星相同的仪器获得的，无论是从地面还是从太空。然而，时间尺度是非常不同的，因为太阳型恒星的振荡周期约为5到10分钟，而系外行星的轨道可能从几天到多年不等。在这里，我讨论了外行星宿主恒星的星震学，并列举了一些例子。
英文摘要：
Studying the internal structure of exoplanet-host stars compared to that of similar stars without detected planets is particularly important for the understanding of planetary formation. The observed average overmetallicity of stars with planets is an interesting point in that respect. In this framework, asteroseismic studies represent an excellent tool to determine the structural differences between stars with and without detected planets. It also leads to more precise values of the stellar parameters like mass, gravity, effective temperature, than those obtained from spectroscopy alone. Interestingly enough, the detection of stellar oscillations is obtained with the same instruments as used for the discovery of exoplanets, both from the ground and from space. The time scales however are very different, as the oscillations of solar type stars have periods around five to ten minutes, while the exoplanets orbits may go from a few days up to many years. Here I discuss the asteroseismology of exoplanet-host stars, with a few examples.
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。
