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arXiv 0804.2151astro-ph
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食双星OW Gemiorum的轨道和物理参数

The orbital and physical parameters of the eclipsing binary OW Gemiorum

C. Gałan, M. Mikołajewski, T. Tomov, D. Kolev, D. Graczyk, A. Majcher, J. Ł. Janowski, M. Cikała

摘要:

我们提供了1995年、2002年和2006年发生的OW Gem的一次和二次日食的多色测光数据,以及R. F. Griffin和A.杜克努瓦Wilson-Devinney代码用于同时解决光度和光谱数据。获得了各部件的一套完整的轨道参数和物理参数。这对值,偏心率e=0.5286和幅角的近星点Ω =140.73度,给出了更好的兼容性的时刻的第二个最小值与观测相比,以前的估计。

英文摘要:

We present our multicolour photometric data of the primary and secondary eclipses of OW Gem that took place in 1995, 2002, and 2006, as well as the new radial-velocity data collected since 1993 by R. F. Griffin and A. Duquennoy. The Wilson-Devinney code was used for the simultaneous solution of both photometric and spectroscopic data. A complete set of orbital and physical parameters of the components was obtained. The pair of values, eccentricity e=0.5286 and argument of periastron omega=140.73 degree, give better compatibility of the moment of the secondary minimum with the observations compared to previous estimates.

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