The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819

doi:10.3847/1538-3881/abcb92

YNAO OpenIR > 双星与变星研究组

	The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819
	Li XZ(李旭志)1,2,3,4 ; Liu L(刘亮)1,2,3,4
发表期刊	The Astronomical Journal
	2021-01
卷号	161 期号:1 页码:9
DOI	10.3847/1538-3881/abcb92
产权排序	第1完成单位
收录类别	SCI
关键词	Eclipsing binary stars Binary stars Contact binary stars Open star clusters
摘要	Using the Kepler Eclipsing Binary Catalog, we found seven EW-type eclipsing binaries within the tidal radius of the intermediate-aged open cluster NGC 6819 (about 40′). These seven EW eclipsing binaries are all confirmed to be contact binaries by light curve analysis with the 2015 version Wilson–Devinney program. Using the parameter characteristics of contact binaries, we found that only KIC 4937217 could be a member of NGC 6819. Moreover, KIC 5199489 should be a shallow, unity-mass-ratio contact binary implying an early contact stage or a mass-ratio reverse stage. Nevertheless, KIC 5198934 and KIC 5374883 should be deep, low mass ratio contact binaries (DLMRCBs), which are usually considered as premergers.
资助项目	Chinese Natural Science Foundation[11773066] ; Chinese Natural Science Foundation[11933008] ; young academic and technology leaders project of Yunnan Province[2015HB098] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
项目资助者	Chinese Natural Science Foundation[11773066, 11933008] ; young academic and technology leaders project of Yunnan Province[2015HB098] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
语种	英语
学科领域	天文学 ; 恒星与银河系 ; 恒星形成与演化
文章类型	Article
出版者	IOP PUBLISHING LTD
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-6256
URL	查看原文
WOS记录号	WOS:000599470000001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	ABSOLUTE-MAGNITUDE CALIBRATION ; UMA-TYPE SYSTEMS ; ECLIPSING BINARY ; CLOSE-BINARY ; VARIABLE-STARS ; LIGHT CURVES ; CLUSTER ; EVOLUTION ; PERIOD ; PARAMETERS
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/23992
专题	双星与变星研究组中国科学院天体结构与演化重点实验室
通讯作者	Li XZ(李旭志)
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences (CAS), 650216 Kunming, People's Republic of China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650216 Kunming, People's Republic of China 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China 4.University of the Chinese Academy of Sciences, Yuquan Road 19#, Shijingshan Block, 100049 Beijing, People's Republic of China
第一作者单位	中国科学院云南天文台
通讯作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Li XZ,Liu L. The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819[J]. The Astronomical Journal,2021,161(1):9.
APA	Li XZ,&Liu L.(2021).The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819.The Astronomical Journal,161(1),9.
MLA	Li XZ,et al."The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819".The Astronomical Journal 161.1(2021):9.

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