THE FIRST PHOTOMETRIC INVESTIGATION OF THE NEGLECTED W-UMa-TYPE BINARY STAR V532 MONOCEROTIS
文献类型：期刊论文
| 作者 | He JJ(何家佳)1,2,3 ; Qian SB(钱声帮)1,2,4; Soonthornthum, B.3
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2016-11-01 |
| 卷号 | 152期号:5 |
| ISSN号 | 0004-6256 |
| 关键词 | binaries: close binaries: eclipsing stars: evolution stars: individual (V532 Mon) |
| 通讯作者 | He, JJ |
| 产权排序 | 第一完成单位 |
| 英文摘要 | The first two sets of complete charge-coupled device light curves in the B and V bands of the short-period binary system, V532 Mon, are presented. The light curves are analyzed with spot models using the Wilson-Devinney code. V532 Mon is found to be an A-subtype intermediate-contact binary with a degree of contact factor of f= 47.1%(+/- 2.7%), a mass ratio of q= 0.2502(+/- 0.0019), and a cool spot on the primary component. The period changes of the system are investigated by combining newly determined times of light minimum with others published in the literature. We found that the general trend of the observed-calculated (O - C) curve shows a downward parabolic variation that corresponds to a long-term decrease in the orbital period at a rate of dP dt = -1.716(+/- 0.002) x 10(-7) dyr(-1). The long-term decrease of the orbital period can be explained by mass transfer from the more-massive component to the less massive one. The long-time period decrease, the intermediate-contact configuration, and the astrophysical parameters of the binary system suggest that V532 Mon will evolve into high fill-out, extreme mass-ratio overcontact binaries. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LIGHT ; CATALOG ; CURVES |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.3847/0004-6256/152/5/120/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000386614500001 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9755]  |
| 专题 | 云南天文台_双星与变星研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, China 2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, 650216 Kunming, China 3.National Astronomical Research Institute of Thailand, 191 Siriphanich Bidg. 2nd Fl. Huay Kaew Rd. Suthep District, Muang, Chiang Mai 50200, Thailand 4.University of the Chinese Academy of Science, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, China |
| 推荐引用方式 GB/T 7714 | He JJ,Qian SB,Soonthornthum, B.. THE FIRST PHOTOMETRIC INVESTIGATION OF THE NEGLECTED W-UMa-TYPE BINARY STAR V532 MONOCEROTIS[J]. ASTRONOMICAL JOURNAL,2016,152(5). |
| APA | He JJ,Qian SB,&Soonthornthum, B..(2016).THE FIRST PHOTOMETRIC INVESTIGATION OF THE NEGLECTED W-UMa-TYPE BINARY STAR V532 MONOCEROTIS.ASTRONOMICAL JOURNAL,152(5). |
| MLA | He JJ,et al."THE FIRST PHOTOMETRIC INVESTIGATION OF THE NEGLECTED W-UMa-TYPE BINARY STAR V532 MONOCEROTIS".ASTRONOMICAL JOURNAL 152.5(2016). |
入库方式： OAI收割
来源：云南天文台
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