论文标题
ZZ Piscis Austrinus（ZZ PSA）：鲜红色的Nova祖细胞和接触二进制恒星的不稳定性比率
ZZ Piscis Austrinus (ZZ PsA): A bright red nova progenitor and the instability mass ratio of contact binary stars
论文作者
论文摘要
ZZ PSA是一个被忽视的明亮的南部接触二进制系统，最大V幅度为9.26。我们介绍了第一个多波段光度分析，并发现该系统处于深度接触（> 95％），质量比为0.078。主要的质量为1.213 m？与报告的F6频谱类别保持一致。为了确定ZZ PSA是否是合并候选者，我们概述了有关不稳定性比率的当前状态，并发展了将主要质量与系统的不稳定性质量比和接触程度联系起来的新关系。我们发现，ZZ PSA以及文献中的另外两个示例是合并候选者，而另外三个则需要进一步的观察结果，以确认为潜在的合并候选者。
ZZ PsA is a neglected bright southern contact binary system with maximum V magnitude of 9.26. We present the first multi-band photometric analysis and find the system to be in deep contact (>95%) with an extremely low mass ratio of 0.078. The primary has a mass of 1.213 M? in keeping with its reported spectral class of F6. In order to determine if ZZ PsA is a merger candidate we outline the current status regarding the instability mass ratio and develop new relationship linking the mass of the primary to the instability mass ratio of the system and the degree of contact. We find that ZZ PsA along with two other examples from the literature to be merger candidates while an additional three require further observations to be confirmed as potential merger candidates.
