| 晚型星的磁场与软X射线相关性 |
| |
| 引用本文： | 施建荣,赵刚,赵永恒,尤峻汉.晚型星的磁场与软X射线相关性[J].中国天文和天体物理学报,1998(3). |
| |
| 作者姓名： | 施建荣 赵刚 赵永恒 尤峻汉 |
| |
| 作者单位： | 上海交通大学庆用物理系，中国科学院北京天文台 |
| |
| 摘 要： | 本文讨论了晚型星的磁场强度与ＲＯＳＡＴ软Ｘ射线的相关性，用四种模型拟合了ＲＯＳＡＴ的观测结果，讨论了各种模型的优缺点，同时发现单星的星冕温度与磁场强度的相关性很好．因此可以认为磁场是晚型星星冕很重要的加热机制．由处理ＲＯＳＡＴ数据得到的星冕温度，可估计晚型星表面的磁场强度．
|
| 关 键 词： | 晚型星 X射线 星冕 磁场 |
Coronal Soft X-ray Emission and the Magnetic Fields of Cool Stars |
| |
| SHI Jian-rong , ZHAO Gang ZHAO Yong-Heng YOU Jun-han.Coronal Soft X-ray Emission and the Magnetic Fields of Cool Stars[J].Chinese Journal of Astronomy and Astrophysics,1998(3). |
| |
| Authors: | SHI Jian-rong ZHAO Gang ZHAO Yong-Heng YOU Jun-han |
| |
| Institution: | SHI Jian-rong 1,2 ZHAO Gang 2 ZHAO Yong-Heng 2 YOU Jun-han 1 1 |
| |
| Abstract: | The correlation between the X-ray emission and the magnetic field in late-type stars is investigated,based on data primarily from the ROSAT PSPC observation.Four coronal models have been considered to fit the sample stars.And a strong correlation between the coronal temperature and the magnetic field in single cool stars is found,we interpret the result as a magnetic heating process.The best fit is achieved with the model of a plasma consisting of two isothermal components with intervening absorption. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
