光谱,金牛座algol型双星v1241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 : 2023-10-01 DOI:10.22201/ia.01851101p.2023.59.02.05

R. H. Nelson, K. B. Alton, M. Kendurkar

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引用次数: 0

摘要

在不列颠哥伦比亚省维多利亚的道明天体物理天文台(DAO)获得的新的径向速度(RV)数据与algol型双星V1241 Tau的光曲线(LC)数据同时与2003年版本的威尔逊-德文尼代码(WD2003)进行了分析。有两个不同的LC数据集:一个来自凌日系外行星测量卫星(TESS)，另一个(BVIc)来自(陆基)沙漠开花天文台(DBO)。TESS数据被认为具有最小的光度不确定性;因此，我们推导出M1 (1.91(8) M☉)，M2 (1.04(4) M☉)，R1 (1.86(1) R☉)，R2 (1.73(1) R☉)，qWD (0.54(3))， L1 (10.7(8) L☉)和L2 (1.7(2) L☉)的估计，随后与WD2003代码同步分析(RV+LC)。演化模型显示，主星在一定程度上演化过了零年龄主序列(ZAMS)，而副星在很大程度上演化过了末年龄主序列(TAMS)。

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SPECTROSCOPIC & PHOTOMETRIC STUDY OF THE ALGOL-TYPE BINARY V1241 TAURI

New radial velocity (RV) data obtained at the Dominion Astrophysical Observatory (DAO) in Victoria, British Columbia along with light curve (LC) data for the Algol-type binary V1241 Tau have been simultaneously analysed with the 2003 version of the Wilson-Devinney code (WD2003). There were two distinct LC datasets: one was from the Transiting Exoplanet Survey Satellite (TESS) and the others (BVIc) from the (land-based) Desert Blooms Observatory (DBO). The TESS data were considered to have the least photometric uncertainty; consequently, we derived estimates for M1 (1.91(8) M☉), M2 (1.04(4) M☉), R1 (1.86(1) R☉), R2 (1.73(1) R☉), qWD (0.54(3)), L1 (10.7(8) L☉), and L2 (1.7(2) L☉) following simultaneous analysis (RV+LC) with the WD2003 code. Evolutionary modeling revealed that the primary star is somewhat evolved past the zero age main sequence (ZAMS) while the secondary is much evolved past the terminal age main sequence (TAMS).

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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.