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NSVS4484038, A CONTACT BINARY SYSTEM AT THE SHORT-PERIOD CUTOFF
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
2014-09-01
Source PublicationASTRONOMICAL JOURNAL
ISSN0004-6256
Volume148Issue:3Pages:0
AbstractWe 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.
KeywordBinaries: Eclipsing Stars: Individual (Nsvs4484038) Stars: Late-type
Subject Area天文和天体物理
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-6256/148/3/40
WOS KeywordPHYSICAL PARAMETERS ; VARIABLE-STARS ; LIGHT CURVES ; LIMIT ; FIELD ; MASS ; VELOCITY ; PROGRAM
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Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000341225900002
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/11227
Collection院士文集_熊大闰
Affiliation1.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
GB/T 7714
Zhang, X. B.,Deng, L. C.,Wang, K.,et al. NSVS4484038, A CONTACT BINARY SYSTEM AT THE SHORT-PERIOD CUTOFF[J]. ASTRONOMICAL JOURNAL,2014,148(3):0.
APA Zhang, X. B..,Deng, L. C..,Wang, K..,Yan, Z. Z..,Tian, J. F..,...&Zhou, Q..(2014).NSVS4484038, A CONTACT BINARY SYSTEM AT THE SHORT-PERIOD CUTOFF.ASTRONOMICAL JOURNAL,148(3),0.
MLA Zhang, X. B.,et al."NSVS4484038, A CONTACT BINARY SYSTEM AT THE SHORT-PERIOD CUTOFF".ASTRONOMICAL JOURNAL 148.3(2014):0.
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