NSVS4484038, A CONTACT BINARY SYSTEM AT THE SHORT-PERIOD CUTOFF
文献类型：期刊论文
| 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
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2014-09-01 |
| 卷号 | 148期号:3 |
| 关键词 | binaries: eclipsing stars: individual (NSVS4484038) stars: late-type |
| 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000341225900002 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6365]  |
| 专题 | 国家天文台_光学天文研究部 |
| 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 |
| 推荐引用方式 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). |
| 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). |
| MLA | Zhang, X. B.,et al."NSVS4484038, A CONTACT BINARY SYSTEM AT THE SHORT-PERIOD CUTOFF".ASTRONOMICAL JOURNAL 148.3(2014). |
入库方式： OAI收割
来源：国家天文台
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