LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY
文献类型：期刊论文
| 作者 | Qian SB(钱声帮)1,2,3 ; Zhou X(周肖)1,2,3; Zhu LY(朱俐颖)1,2,3; Zejda, M.4; Soonthornthum, B.5; Zhao EG(赵二刚)1,2,3; Zhang J(张嘉)1,2; Zhang B(张斌)1,2,3; Liao WP(廖文萍)1,2
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2015-12 |
| 卷号 | 150期号:6 |
| 关键词 | binaries: close binaries: eclipsing stars: evolution stars: individual (GQ Dra) |
| ISSN号 | 0004-6256 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Qian, SB (reprint author)，Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | GQ Dra is a short-period eclipsing binary in a double stellar system that was discovered by Hipparcos. Complete light curves in the UV band were obtained with the Lunar-based Ultraviolet Telescope in 2014 November and December. Photometric solutions are determined using the W-D (Wilson and Devinney) method. It is discovered that GQ Dra is a classical Algol-type semi-detached binary where the secondary component is filling the critical Roche lobe. An analysis of all available times of. minimum light suggests that the orbital period is increasing continuously at a rate of (P)over dot = +3.48(+/- 0.23) x 10(-7) days yr(-1). This could be explained by mass transfer from the secondary to the primary, which is in agreement with the semi-detached configuration with a lobe-filling secondary. By assuming a conservation of mass and angular momentum, the mass transfer rate is estimated as (m)over dot = 9.57(+/- 0.63) x 10(-8)M(circle dot) yr(-1). All of these results reveal that GQ Dra is a mass-transferring semi-detached binary in a double system that was formed from an initially detached binary star. After the massive primary evolves to fill the critical Roche lobe, the mass transfer will be reversed and the binary will evolve into a contact configuration with two sub-giant or giant component stars. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ULTRAVIOLET TELESCOPE ; DD MONOCEROTIS ; LIGHT CURVES ; STARS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-6256/150/6/193/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000366588600028 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9388]  |
| 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, 650011 Kunming, China 2.Key Laboratory of the Structure and Evolution Celestial Bodies, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China 3.University of the Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, China 4.Department of Theoretical Physics and Astrophysics, Masaryk University, Kotlářská 2, CZ-611 37 Brno, Czech Republic 5.National Astronomical Research Institute of Thailand, 191 Siriphanich Bldg., Huay Kaew Rd., Chiang Mai 50200, Thailand |
| 推荐引用方式 GB/T 7714 | Qian SB,Zhou X,Zhu LY,et al. LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY[J]. ASTRONOMICAL JOURNAL,2015,150(6). |
| APA | Qian SB.,Zhou X.,Zhu LY.,Zejda, M..,Soonthornthum, B..,...&Liao WP.(2015).LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY.ASTRONOMICAL JOURNAL,150(6). |
| MLA | Qian SB,et al."LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY".ASTRONOMICAL JOURNAL 150.6(2015). |
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来源：云南天文台
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