论文标题
关于联系人的真实本质二进制CRTS J192848.7-404555
On the True Nature of the Contact Binary CRTS J192848.7-404555
论文作者
论文摘要
CRTS J192848.7-404555在调查光度法分析的基础上被认为是潜在的接触二进制合并候选者。我们已经对系统进行了后续的基于地面的光度法，并表明在系统的记录坐标处，有两个恒星大约3秒钟分开。我们的分析表明，两颗恒星的淡淡是实际变量，而略微亮的恒星具有固定的亮度。此外，我们表明报告的测量光度法是两个恒星被视为单个光源的结果，并导致错误的光曲线溶液。 CRTS J192848.7-404555的真实性质表明，它是低质量接触二进制系统，高质量比为0.425，高幅度为0.69幅度，较低的质量比，浅24％接触。该系统没有轨道不稳定性的特征，也不是潜在的合并祖细胞。
CRTS J192848.7-404555 was recognised as a potential contact binary merger candidate on the basis of survey photometry analysis. We have carried out follow up ground based photometry of the system and show that at the recorded coordinates for the system there are two stars approximately 3 seconds of arc apart. Our analysis shows that the fainter of the two stars is the actual variable while the slightly brighter star is of fixed brightness. In addition we show that the reported survey photometry is the result of both stars being treated as a single light source with resultant erroneous light curve solution. The true nature of CRTS J192848.7-404555 shows it to be a low mass contact binary system with a high mass ratio of 0.425, high amplitude of 0.69 magnitude and shallow 24% contact. The system does not have features of orbital instability and is not a potential merger progenitor.
