两个接触双星系统和一个分离晚矮星+ m矮星组分的光度研究

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

Revista Mexicana de Astronomia y Astrofisica Pub Date : 2023-04-01 DOI:10.22201/ia.01851101p.2023.59.01.09

R. Michel, C. Barani, M. Martignoni, F. Acerbi, L. Altamirano-Dévora

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引用次数: 0

摘要

本文给出了基于新的CCD B、V、RC、IC全光曲线对食双星系统AF LMi、CzeV188和CRTS J073333.0+302556的研究结果。对这些系统的短期进行了确认和修订。使用最新版本的WilsonDevinney代码对光曲线进行了建模，因此，我们发现AF LMi（G3+G9）和CzeV188（K0+K1）是属于W子类的W UMa型接触二元系统，显示出与良好热接触的组件的浅填充度。CRTS J073333.0+302556是一个分离的双星系统，由一颗晚矮星（K8）和一颗M6矮星光谱型组成。光曲线的不对称性是用其中一个部件表面上的一个斑点来解释的。对这三个物体的绝对元素进行了估计。

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PHOTOMETRIC STUDY OF TWO CONTACT BINARY SYSTEMS AND A DETACHED LATE DWARF + M DWARF COMPONENTS

The results of our study of the eclipsing binary systems AF LMi, CzeV188 and CRTS J073333.0+302556 based on new CCD B, V, RC, IC complete light curves, are here presented. The short periods of these systems are confirmed and revised. The light curves were modeled using the latest version of the WilsonDevinney code and, as a result, we found that AF LMi (G3+G9) and CzeV188 (K0+K1) are W UMa-type contact binary systems belonging to the W subclass, showing a shallow degree of fill-out with components in good thermal contact. CRTS J073333.0+302556 is a detached binary system composed by a late dwarf (K8) and an M6 dwarf spectral type components. The asymmetries of the light curves were accounted for with a spot on the surface of one of the component. The absolute elements of the three objects were estimated.

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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.