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FIRST PHOTOMETRIC SOLUTION OF A VERY SHORT PERIOD CONTACT BINARY BELOW THE PERIOD LIMIT

机译:在周期限制以下非常短的周期二进制二进制的第一个光度法解决方案

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The star 1SWASP J022727.03+115641.7 was reported as a contact binary with a period shorter than the empirical limit of such systems. Our study shows the star not to be variable. Instead, it is the nearby star, 2MASS 02272637+1156494, that exhibits variability. The BRI CCD light curves of 2MASS 02272637+1156494 show the system to be a moderate mass ratio (), and shallow contact () W-type contact binary. The masses, radii, and luminosities of the binary components are, respectively, , , , , , and , with an estimated distance pc. These uncertainties mainly come from the errors of the colors used to estimate the temperature of the primary star. A dark spot was introduced on the massive component in the final solution.
机译:据报道,星号1SWASP J022727.03 + 115641.7是接触双星,其周期短于此类系统的经验极限。我们的研究表明,恒星不可变。取而代之的是附近的恒星2MASS 02272637 + 1156494表现出可变性。 2MASS 02272637 + 1156494的BRI CCD光曲线表明,该系统具有中等质量比()和浅接触()W型接触二元。二元分量的质量,半径和亮度分别为,,,,和,估计距离为pc。这些不确定性主要来自用于估计原恒星温度的颜色误差。在最终解决方案的大量组件上引入了一个黑点。

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