| 自转对恒星物理量的影响 |
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| 引用本文： | 谭徽松,潘开科.自转对恒星物理量的影响[J].天文研究与技术,1996(2). |
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| 作者姓名： | 谭徽松 潘开科 |
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| 作者单位： | 中国科学院云南天文台 |
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| 摘 要： | 自转本身是恒星的基本物理量之一，同时影响恒星的其它许多物物量，包括对恒星半径、形状和体积的影响；对光度、包指数、谱线轮廓、等值宽度、偏振度等观测量的影响；对引力加速度、元素丰度的影响；对恒星内部结构，如中心压力、温度、密度的影响。这些将会影响到恒星在Ｈ—Ｒ图上的位置，演化路径以及年龄和寿命等。因此，无论是理论模型还是实测研究，对自转快的恒星应该进行自转影响的修正。
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| 关 键 词： | 恒星，恒星自转 |
Influence of Rotation on the Stellar Parameters |
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| Tan Huisong, Pan Kaike.Influence of Rotation on the Stellar Parameters[J].Astronomical Research & Technology,1996(2). |
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| Authors: | Tan Huisong Pan Kaike |
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| Abstract: | Rotation, as a foundational stellar parameter,influences other stellar physics quantities. The main effects of rotation are reviewed in present paper. The size of a star is increased and the shape is deviated from the sphere by the rotation of the star. The rotation lowers the surface temperature and gravitational acceleration of the star. Many observable parameters, including luminosity, magnitude, color index, Stokes parameters, abundance of elements, line profile and its equivalent width, are effected or distorted by the stellar rotation. The observation values are averaged over the visible hemisphere, depending upon the inclination angle. The rotation also influences the pressure,the temperature and the;density at the center of the star. |
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| Keywords: | Star Stellar rotation |
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