论文标题
三个超短期期触点截止了从大规模天文调查开采的二进制系统
Three Ultra-short Period Contact Eclipsing Binary Systems Mined from Massive Astronomical Surveys
论文作者
论文摘要
我们介绍了三个超短周期的光度分析，以接触配置中的二进制二进制，CRTS_J172718.0+431624，OGLE-BLG-ECL-000104和OGLE-BLG-ECL-000012，从大规模的天文学转移中挖出。利用Viasa（VVV）中VISTA变量的可用档案光曲线（LCS），光学重力透镜实验（OGLE），Zwicky Transient设施（ZTF）和Catalina Sky Sumperions（ZTF）和不同的传递和新的多个频带光度观察到2.3 m Aristos telmiss armiss at teles arm termastarch At at and arm termastart At termastart Atscope， 衍生的。我们通过使用Pikaia遗传算法优化器探索了参数空间。通过MCMC的全局最佳采样，对每个系统都采用了最佳的光度解决方案和误差预算估计。为每个接触系统得出了近似的绝对参数，该参数采用了经验质量 - 露光性关系。这三个系统的质量比低于0.5。在2016 - 2022年期间，CRTS_J172718.0+431624的初级和次要深度之间的交换可能是由于现场活动。此外，我们对迄今为止已知的总黯淡的二进制（Ogle-Blg-ecl-000104）进行了详细分析。多亏了VVV和OGLE LCS，使用经验周期luminity关系，为Ogle-Blg-ecl-000104和Ogle-Blg-ecl-000012得出了新的距离。在分离的二进制形成通道的背景下，对所有三个超短期接触二进制的所有三个超短期触点二进制的起源和进化状态进行了详尽的讨论。
We present the photometric analysis of three ultra-short period total eclipsing binaries in contact configuration, CRTS_J172718.0+431624, OGLE-BLG-ECL-000104, and OGLE-BLG-ECL-000012, mined from massive astronomical surveys. Using the available archival light curves (LCs) from Vista Variables in the Via Lactea (VVV), Optical Gravitational Lensing Experiment (OGLE), Zwicky Transient Facility (ZTF) and Catalina Sky Survey (CSS) in different passbands and new multi-band photometric observations with the 2.3 m Aristarchos telescope at Helmos Observatory, their relative physical parameters were derived. We explored the parameter space by using PIKAIA genetic algorithm optimizer. The best photometric solution and error budget estimation was adopted for each system through MCMC sampling of the global optimum. The approximate absolute parameters were derived for each contact system adopting an empirical mass-luminosity relation. All three systems have a mass ratio lower than 0.5. The exchange between primary and secondary depths of CRTS_J172718.0+431624 during the years 2016-2022 may be due to spot activity. In addition, we present a detailed analysis of the first well characterized shortest period contact eclipsing binary with total eclipses known so far (OGLE-BLG-ECL-000104). Thanks to VVV and OGLE LCs, new distances were derived for OGLE-BLG-ECL-000104 and OGLE-BLG-ECL-000012 using empirical period-luminosity relations. The origin and evolutionary status of all three ultra-short period contact binaries are thoroughly discussed in the context of the detached-binary formation channel.
