Magnetic Activity and Period Variation Studies of the Short-period Eclipsing Binaries. III. V1175 Her, NSVS 2669503, and 1SWASP J133417.80+394314.4

doi:10.3847/1538-3881/aad001

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	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-peng 1; Michel, Raul 2; Zhang, Li-yun1,3 ; Castro, Angel 2,4,5
刊名	ASTRONOMICAL JOURNAL
	2018-09-01
卷号	156 期号:3
关键词	Binaries: Eclipsing Stars: Activity
ISSN号	0004-6256
DOI	10.3847/1538-3881/aad001
文献子类	Article
英文摘要	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.
学科主题	天文学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目	National Development and Reform Commission ; UNAM under DGAPA[PAPIIT IN 105115] ; NSFC[U1631236] ; NSFC[U1431114] ; CAS[U1631236] ; CAS[U1431114] ; Guizhou Province Office of Education[2014298]
WOS关键词	Photometric Standard Stars ; Sky Variability Survey ; Light Curves ; Celestial Equator ; Contact Binaries ; Spectral Survey ; Variable-stars ; Close Binaries ; Ursae Majoris ; Data Release
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000441303000005
资助机构	National Development and Reform Commission ; UNAM under DGAPA[PAPIIT IN 105115] ; NSFC[U1631236, U1431114] ; CAS[U1631236,U1431114] ; Guizhou Province Office of Education[2014298]
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/17380]
专题	云南天文台_中国科学院天体结构与演化重点实验室
通讯作者	Zhang, Li-yun
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.
推荐引用方式 GB/T 7714	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.(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).