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题名: NSVS4484038, A CONTACT BINARY SYSTEM AT THE SHORT-PERIOD CUTOFF
作者: Zhang, X. B.1; Deng, L. C.1; Wang, K.1; Yan, Z. Z.1, 2; Tian, J. F.1; Peng, Y. J.2; Pan, Y.2; Luo, Z. Q.2; Sun, J. J.3; Liu, Q. L.3; Xin, H. Q.3; Zhou, Q.3
刊名: ASTRONOMICAL JOURNAL
出版日期: 2014-09-01
卷号: 148, 期号:3, 页码:0
关键词: binaries: eclipsing ; stars: individual (NSVS4484038) ; stars: late-type
学科分类: 天文和天体物理
DOI: 10.1088/0004-6256/148/3/40
文章类型: Article
英文摘要: We present a photometric study of the short-period eclipsing binary NSVS4484038. Time-series CCD photometry of the star in the B and V band was carried out. An orbital period of 0.218551 days was determined for the eclipsing binary and a revised linear ephemeris was given. The first photometric solution of the binary system was detected through light-curve synthesis using the Wilson Devinney method. It reveals an overcontact configuration for the system with a filling-out factor of about 10%. The mass ratio was determined to be 2.74 with an inclination of 72 degrees.1 The less massive secondary component is found to have a higher surface temperature than the primary by about 90 K, indicating that NSVS4484038 could be a contact system of W subtype. The star is then identified to be a new member of W UMa systems at the short-period cutoff. Comparisons with known contact binaries at the short-period cutoff, the properties, and the evolutionary status of the binary system are discussed.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: PHYSICAL PARAMETERS ; VARIABLE-STARS ; LIGHT CURVES ; LIMIT ; FIELD ; MASS ; VELOCITY ; PROGRAM
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000341225900002
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/11227
Appears in Collections:熊大闰_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
2.China West Normal Univ, Dept Phys, Nanchong 637002, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China

Recommended Citation:
Zhang, X. B.; Deng, L. C.; Wang, K.; Yan, Z. Z.; Tian, J. F.; Peng, Y. J.; Pan, Y.; Luo, Z. Q.; Sun, J. J.; Liu, Q. L.; Xin, H. Q.; Zhou, Q..NSVS4484038, A CONTACT BINARY SYSTEM AT THE SHORT-PERIOD CUTOFF,ASTRONOMICAL JOURNAL,2014,148(3):0
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