| 确定大熊W型双星质量比的一个近似方法 |
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| 引用本文： | 刘清耀. 确定大熊W型双星质量比的一个近似方法[J]. 中国天文和天体物理学报, 1988, 0(2) |
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| 作者姓名： | 刘清耀 |
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| 作者单位： | 中国科学院云南天文台 |
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| 摘 要： | 本文给出了一个确定大熊W型双星质量比的近似方法。如果知道大熊W型双星的周期P、主子星表面有效温度T_p和主次食深差△m,可通过该文导出的一个公式算得质量比。对21个大熊W双星进行了计算,结果表明用该方法确定的质量比同分光或测光质量比符合较好。
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| 关 键 词： | 大熊w双星 相接双星 质量比 |
An Approach Method to Determine the Mass Ratio for W UMa Binaries |
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| Liu Qingyao. An Approach Method to Determine the Mass Ratio for W UMa Binaries[J]. Chinese Journal of Astronomy and Astrophysics, 1988, 0(2) |
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| Authors: | Liu Qingyao |
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| Abstract: | An approach method to determine the mass ratio for W UMa binaries is given in the present paper. With p the orbital period in day, TP the surface effective temperature of the primary component in. solar surface temperature and Am the magnitude difference between the depth at the primary eclipse and that at the secondary eclipse are known, the mass ratio can be determined usingwhich is derived in present paper.Calculations for 21 W UMa binaries show that the mass ratios determined with our method are compatible with the spectroscopic or photometric mass ratios. |
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| Keywords: | W UMa binary stars-Contact binary stars-Mass ratio |
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