V355 And:多星系统中被忽略的分离双星

IF 0.4 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Contributions of the Astronomical Observatory Skalnate Pleso Pub Date : 2021-06-01 DOI:10.31577/CAOSP.2021.51.2.118

B. Özkardeş

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引用次数: 0

摘要

首次利用TESS、ASAS-SN和KWS数据库对V355和食双星的光曲线进行了分析。利用所有可获得的最小光照时间和本研究确定的最小光照时间，构建了星历图，得到了修正后的星历表。最后的光度模型将V355描述为一颗具有分离结构的Algollike型双星。系统各组成部分的绝对参数为:质量M1=1.56±0.01 M, M2=1.38±0.01 M;半径R1=1.70±0.03 R, R2=1.38±0.03 R;有效温度T1=6650±200 K, T2=6235±201 K。考虑星际消光，计算到V355和的距离为117±7pc。用日内瓦恒星模型讨论了V355和的演化状态。

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V355 And: a neglected detached binary in a multiple star system

The analysis of light curves (from TESS, ASAS–SN and KWS databases) of the eclipsing binary V355 And is presented for the first time. The O-C diagram was constructed using all available times of minimum light together with the ones determined in this study, and the revised ephemeris was obtained. The final photometric model describes V355 And as an Algollike type binary star with a detached configuration. Absolute parameters of the components of the system were found to be: masses, M1=1.56 ± 0.01 M and M2=1.38 ± 0.01 M , radii, R1=1.70 ± 0.03 R and R2=1.38 ± 0.03 R , and effective temperatures, T1=6650 ± 200 K and T2=6235 ± 201 K. Considering interstellar extinction the distance to V355 And was computed as 117 ± 7 pc. The evolutionary state of V355 And is also discussed using the Geneva stellar models.

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来源期刊

Contributions of the Astronomical Observatory Skalnate Pleso 地学天文-天文与天体物理

CiteScore

1.10

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Contributions of the Astronomical Observatory Skalnate Pleso" (CAOSP) is published by the Astronomical Institute of the Slovak Academy of Sciences (SAS). The journal publishes new results of astronomical and astrophysical research, preferentially covering the fields of Interplanetary Matter, Stellar Astrophysics and Solar Physics. We publish regular papers, expert comments and review contributions.