月食双星的光度分析:yumi, ru umi和GSC 04364-00648

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Revista Mexicana de Astronomia y Astrofisica Pub Date : 2023-01-31 DOI:10.22201/ia.01851101p.2023.59.01.10

V. Kudak, vS.Parimucha, V. Perig, Pavol Gajdoš

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引用次数: 0

摘要

本文介绍了三个食双星的BVR和TESS光曲线的光度分析，以及它们的周期变化，考虑了我们和TESS观测的存档数据和新的最小时间。我们首次在RU UMi的O−C残留物中检测到低振幅的波状变化，这可以解释为周期为7370天的第3分量引起的光时效应的结果。在vyumi系统中检测到的周期增加对应于从次级组分到主组分的质量传递。对于GSC 04364-00648双星系统，我们在O−C图上发现了二次变化，这对应于周期的减少。由于观测时间短，O−C图覆盖不均匀，我们无法对其性质进行假设。我们还利用光度溶液和GAIA距离确定了它们组分的绝对参数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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PHOTOMETRIC ANALYSIS OF ECLIPSING BINARIES: VY UMI, RU UMI AND GSC 04364-00648

We present the photometric analysis of BVR and TESS light curves of three eclipsing binaries, together with their period changes considering archival data and new minima times from our and TESS observations. For the first time we detected wave-like variations with low-amplitude in O − C residua of RU UMi, which can be interpreted as a consequence of the light-time effect caused by the 3rd component with period 7370 days. The period increase detected in the VY UMi system corresponds to mass transfer from the secondary to the primary component. For the GSC 04364-00648 binary system we find quadratic changes on the O − C diagram, which correspond to a period decrease. We cannot make assumptions about their nature, mainly due to short time of observation and uneven coverage of O − C diagram. We also determined the absolute parameter of their components using the photometric solution and GAIA distances.

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来源期刊

Revista Mexicana de Astronomia y Astrofisica 地学天文-天文与天体物理

CiteScore

1.30

自引率

10.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Revista Mexicana de Astronomía y Astrofísica, founded in 1974, publishes original research papers in all branches of astronomy, astrophysics and closely related fields. Two numbers per year are issued and are distributed free of charge to all institutions engaged in the fields covered by the RMxAA.