The first photometric analysis and period investigation of the K-type W UMa type binary system V0842 Cep

被引：2
作者：
Li, Yu-Yang [1 ]
Li, Kai [1 ]
Liu, Yuan [2 ]
机构：
[1] Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China
[2] Qilu Inst Technol, Jinan 250200, Peoples R China
来源：
RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2021年 / 21卷 / 05期
关键词：
stars: binaries: close; stars: binaries: eclipsing; stars: individual (V0842 Cep); CONTACT BINARIES; VARIABLE-STARS; EVOLUTION; PARAMETERS; CATALOG; LIMIT;
D O I：
10.1088/1674-4527/21/5/122
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
V0842 Cep is a W UMa-type binary star that has been neglected since its discovery. We analysed the V RcIc light curves, obtained by the 1 m telescope at Weihai Observatory of Shandong University, using the Wilson-Devinney code. V0842 Cep was found to be a shallow contact binary system (f=8.7%) with a mass ratio of 2.281. Because its orbital inclination is greater than 80 degrees, the photometric results are reliable. A period study is included which reveals a continually decreasing orbital period (dp/dt = 1.50(+/- 0.42)x10(-7) d yr(-1)). This trend could be attributed to the angular momentum loss via stellar wind.
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页数：6
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