Magnetic Activity and Period Variation Studies of the Short-period Eclipsing Binaries. III. V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4
Lu, Hong-peng1; Michel, Raul2; Zhang, Li-yun1,3; Castro, Angel2,4,5; Zhang, Li-yun, Email: liy_zhang@hotmail.com
发表期刊ASTRONOMICAL JOURNAL
2018-09-01
卷号156期号:3
DOI10.3847/1538-3881/aad001
收录类别SCI
关键词Binaries: Eclipsing Stars: Activity
摘要New multi-band CCD light curves of three binaries W UMa-type V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4 are presented. Spectroscopic data for V1175 Her and NSVS 2669503 show that their spectral types are G7V and K4V, respectively. Photometric solutions of these three objects were obtained with the help of the Wilson-Devinney program. We find that V1175 Her is a semi-detached binary star with a hot spot located on the secondary component, while NSVS 2669503 and 1SWASP J133417.80+394314.4 are contact eclipsing binaries with contact factors off = 1.070 +/- 0.002% and f = 21.250 +/- 0.005%, respectively. Moreover, we found that the orbital period of V1175 Her is increasing at a rate of (+3.1 +/- 0.1) x 10(-7) daysyr(-1) . This increase may be attributed to a dM(1)/dt = -0.93 x 10(-7) M-circle dot yr-1 mass-transfer rate from the primary to the secondary component. Finally, we discuss the evolutionary stage of the component stars of these three systems.
项目资助者National Development and Reform Commission ; UNAM under DGAPA(PAPIIT IN 105115) ; NSFC(U1631236, U1431114) ; CAS(U1631236, U1431114) ; Guizhou Province Office of Education(2014298)
语种英语
学科领域天文学
文章类型Article
ISSN0004-6256
URL查看原文
WOS记录号WOS:000441303000005
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]PHOTOMETRIC STANDARD STARS ; SKY VARIABILITY SURVEY ; LIGHT CURVES ; CELESTIAL EQUATOR ; CONTACT BINARIES ; SPECTRAL SURVEY ; VARIABLE-STARS ; CLOSE BINARIES ; URSAE MAJORIS ; DATA RELEASE
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/17380
专题中国科学院天体结构与演化重点实验室
通讯作者Zhang, Li-yun, Email: liy_zhang@hotmail.com
作者单位1.College of Physics & Guizhou Provincial Key Laboratory of Public Big Data, Guizhou University, Guiyang 550025, People's Republic of China
2.Observatorio Astronomico Nacional, Universidad Nacional Autonoma de Mexico, Apartado Postal 877, C.P. 22800 Ensenada, B.C., Mexico
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
4.Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
5.Royal Astronomical Society, Newton International Fellow.
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Lu, Hong-peng,Michel, Raul,Zhang, Li-yun,et al. Magnetic Activity and Period Variation Studies of the Short-period Eclipsing Binaries. III. V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4[J]. ASTRONOMICAL JOURNAL,2018,156(3).
APA Lu, Hong-peng,Michel, Raul,Zhang, Li-yun,Castro, Angel,&Zhang, Li-yun, Email: liy_zhang@hotmail.com.(2018).Magnetic Activity and Period Variation Studies of the Short-period Eclipsing Binaries. III. V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4.ASTRONOMICAL JOURNAL,156(3).
MLA Lu, Hong-peng,et al."Magnetic Activity and Period Variation Studies of the Short-period Eclipsing Binaries. III. V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4".ASTRONOMICAL JOURNAL 156.3(2018).
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