类太阳活动星的X射线观测与研究进展

施建荣1,2,3 赵 刚1,2 尤峻汉3

(1. 中国科学院北京天文台 北京 100012)

(2. 中国科学院国家天文观测中心 北京 100012)

(3. 上海交通大学应用物理系 上海 200030)

摘   要

扼要介绍了类太阳恒星星冕X射线辐射的研究历史。综述了X射线辐射与恒星参量的关系。 并对星冕的加热机制作了介绍。类太阳恒星的X射线辐射与表面磁场有关,因此测定晚型星表面的 磁场很重要。

Progress in the X-ray Observation and Study of Solar Like Stars

Shi Jianrong1,2,3 Zhao Gang1,2 You Junhan3

(1. Beijing Astronomical Observatory, The Chinese Academy of Sciences, Beijing 100012)

(2. National Astronomical Observatories, The Chinese Academy of Sciences, Beijing 100012)

(3. Institute for Space Astrophysics, Department of Applied Physics, Shanghai Jiao Tong University, Shanghai 200030)

Abstract

The History of researches on the X-ray emission of solar like stars is introduced briefly in this article. With the continuous progress on observational techniques, it has been revealed that the magnetic field plays very important role in X-ray emission of late-type stars. Here we discuss: the coronae model where the X-ray is emitted; the dependence of the X-ray emission on the stellar parameters, such as, the rotation or Rossiby number, age, spectral type, and the chromosphere activity; the X-ray flare; the long X-ray time variability; the coronal heating mechanisms. Finally, some of research notes for future are briefly discussed.

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