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Soft X-ray and magnetic field of late-type stars |
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| Authors: | Jian-rong Shi Gang Zhao Yong-heng Zhao Jun-han You |
| Institution: | a Department of Applied Physics, Shanghai Jiaotong University, Shanghai 200240, China b Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China |
| Abstract: | We used four coronal models to fit ROSAT data of a sample of late-type stars. The merits and demerits of each was discussed. We found a good correlation between the cornoal temperature so derived and the magnetic field strength. This indicates magnetic heating of the corona and provides a possible, indirect means of estimating the photospheric magnetic field. |
| Keywords: | late-type star X-ray star corona magnetic field |
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