| 食双星的分光轨道解:WX Cnc |
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| 引用本文： | 陆文贤.食双星的分光轨道解:WX Cnc[J].中国天文和天体物理学报,1990(3). |
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| 作者姓名： | 陆文贤 |
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| 作者单位： | 中国科学院上海天文台 |
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| 摘 要： | 本文首次测定了WX Cnc的分光轨道解。轨道根数是:V_0=+9.8公里/秒;K_1=110.2公里/秒;K_2=149.0公里/秒;T_0=HJD 2,446,480.0309。结合文献中测光结果,得到了WX Cnc的绝对参量:A=6.32R_⊙;R_1=1.53R_⊙;R_2=1.18R_⊙ M_1=1.29M_⊙;M_2=0.96M_⊙。分光质比q=0.74。
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| 关 键 词： | 恒星 双星 食双星 分光轨道解 |
Spectroscopic Orbits of Eclipsing Binaries: WX Cnc |
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| Lu Wenxian.Spectroscopic Orbits of Eclipsing Binaries: WX Cnc[J].Chinese Journal of Astronomy and Astrophysics,1990(3). |
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| Authors: | Lu Wenxian |
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| Abstract: | Based on the radial velocities' observed with the 1.8-m telescope and the intensified spec-trographs and measured by cross-correlation techniques at DAO, Victoria, Canada, spectroscopic orbital elements of WX Cnc have, for the first time, been determined to be: V0=+9.8km/ sec; K1 = 110.2 km/sec; K2 = 149.0 km/sec; T0= = HJD2,446,480.0309. A circular orbit is adopted. The mass ratio (m2/m1)q = 0.74 is deduced. The primary component of the system is of a spectral type F5V. With the elements determined here and the photometric parameters in paper 2] , the absolute dimensions of the binary are derived to be the values: A = 6.32R;R1 = 1.53R; R2 = 1.18R; M1 = 1.29M and M2 = 0.96M. |
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| Keywords: | Stars: binaries-Eclipsing-Spectroscopic orbits |
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