| 相接双星金牛座AH |
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| 引用本文： | 刘清耀,杨毓兰,张运林,王毕.相接双星金牛座AH[J].中国天文和天体物理学报,1991(1). |
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| 作者姓名： | 刘清耀 杨毓兰 张运林 王毕 |
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| 作者单位： | 中国科学院云南天文台
(刘清耀，杨毓兰，张运林)，中国科学院云南天文台(王毕) |
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| 摘 要： | 本文给出了金牛座AH的BV两色光电光变曲线。发现该双星的光变曲线从1973年到1986年发生了较大的变化,新观测到的光变曲线是对称的,用Wilson-Devinney方法分析我们的观测求得了AH Tau的测光解。结合该双星的光度视差求出了它的基本参量,并发现它距太阳的距离是昂星团距太阳距离的二倍。因此,AH Tau虽然在昴星团的方向上,但它不是昴星团的成员星。
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| 关 键 词： | 相接双星 测光解 基本参量 |
The Contact Binary System AH Tau |
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| Liu Qingyao Yang Yulan Zhang Yunlin Wang Bi.The Contact Binary System AH Tau[J].Chinese Journal of Astronomy and Astrophysics,1991(1). |
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| Authors: | Liu Qingyao Yang Yulan Zhang Yunlin Wang Bi |
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| Abstract: | New photoelectric observations of AH Tau in B and V were obtained in 1986. The present light curves of AH Tau show some difference from those obtained by Magalashvili in 1973. The maximum amplitude of the yellow light curve of AH Tau has increased by 0.03 mag, while in the blue it has decreased by 0.05 mag. The new light curves are symmetric. Photometric solutions of AH Tau were secured by using the Wilson and Devinney method. AH Tau is a system with a degree of overcontact of 9.1%. According to Liu et al.'s method, the two components of AH Tau are found to be unevolved. The absolute dimensions of AH Tau are derived based on the photometric parallax given by Dworak (1975) and our photometric solutions. Since the distance of AH Tau is twice that of the Pleiades, hence it does not seem to be a member of the cluster. |
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| Keywords: | Stars-AH Tau-Photometric solution |
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