论文标题
期间变化为14,127个接触式二进制的二进制
Period Changes of 14,127 Contact Eclipsing Binaries in the Galactic Bulge
论文作者
论文摘要
我们介绍了基于银河系凸起的Ogle-III \＆IV观测值的14,127个接触二进制（CEB）的轨道周期变化。 CEB的最小灯光的新时代是通过二元建模为完整的季节性光曲线得出的，这是由1年间隔的调查观察结果制成的。系统的轨道周期变化是根据统计推断，多种假设测试误差度量以及对日食正时图的目视检查对系统进行分类的。结果，我们确定了13,716个CEB，具有抛物线，307个带有正弦的CEB和104个CEB，具有两个变化。内部关闭二进制文件和外部同伴的周期分布分别为$ 0.235-0.990美元和$ 5.0-14.0 $年。在我们的13,820 CEB的样本中，显示抛物线差异，确定$ \ dot p = -1.38 \ pm0.06 \ times10^{ - 5} $ day $ day $^{ - 1} $的最高降低和增加的周期率为$ \ dot p = -1.38 \ pm0.06 \ times10^{ - 5} $ p =+8.99 \ pm0.44 \ times10^{ - 6} $ day year $^{ - 1} $分别用于Ogle-blg-ecl-189805。世俗的周期变化率几乎对称分布左右，其中大多数位于$ \ dot p = \ pm5.0 \ times10^{ - 6} $ day year $^$^{ - 1} $。
We present the orbital period variations of 14,127 contact eclipsing binaries (CEBs) based on the OGLE-III\&IV observations in the Galactic bulge. New times of minimum lights for the CEBs were derived by binary modeling for the full seasonal light curves, which were made from survey observations at an interval of 1 year. The orbital period changes of the systems were classified based on the statistical inference, multiple-hypothesis testing error measure, and visual inspection of the eclipse timing diagrams. As the results, we identified 13,716 CEBs with a parabola, 307 CEBs with a sinusoid, and 104 CEBs with the two variations. The period distributions of the inner close binaries and the outer companions were in the ranges of $0.235-0.990$ days and $5.0-14.0$ years, respectively. In our sample of 13,820 CEBs showing a parabolic variation, the highest decreasing and increasing period rates were determined to be $\dot P=-1.38\pm0.06\times10^{-5}$ day year$^{-1}$ for OGLE-BLG-ECL-169991 and $\dot P=+8.99\pm0.44\times10^{-6}$ day year$^{-1}$ for OGLE-BLG-ECL-189805, respectively. The secular period change rates were distributed almost symmetrically around zero, and most of them lie within $\dot P=\pm5.0\times10^{-6}$ day year$^{-1}$.
