Possible connection between period change and magnetic activity of the very short-period binary VZ piscium
文献类型：期刊论文
| 作者 | Qian SB(钱声帮)1,2 ; Soonthornthum, B3; Xiang, FY4; Zhu LY(朱俐颖)1,2; He JJ(何家佳)1,2
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| 刊名 | ASTRONOMISCHE NACHRICHTEN
 |
| 出版日期 | 2004 |
| 卷号 | 325期号:9页码:714-717 |
| 关键词 | binaries : eclipsing stars : individual (VZ Piscium) star : magnetic fields |
| ISSN号 | 0004-6337 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Qian, SB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | New times of light minimum of the short-period (P = 0(d).26) close binary system, VZ Psc, are presented. A period investigation of the binary star, by combining the three new eclipse times with the others collected from the literatures, shows that the variation of the period might be in an alternate way. Under the hypothesis that the variation of the orbital period is cyclic, a period of 25 years and an amplitude of 0.(d)0030 for the cyclic change are determined. If this periodic variation is caused by the presence of a third body, the mass of the third body (m(3)) should be no less than 0.081 M-circle dot. Since both components of VZ Psc are strong chromospherically active and the level of activity of the secondary component is higher than that of the primary one, the period may be more plausibly explained by cyclic magnetic activity of the less massive component. |
| 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] | ORBITAL PERIOD ; CLOSE BINARIES ; CONTACT BINARY ; MODULATION ; DRACONIS ; VELOCITY |
| 收录类别 | SCI |
| 原文出处 | http://onlinelibrary.wiley.com/doi/10.1002/asna.200410251/abstract |
| 语种 | 英语 |
| WOS记录号 | WOS:000225795500004 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5770]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, PR China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, PR China 3.Astronomy Research Unit, Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand 4.Physics Department, Xiangtan University, 411105 Xiangtan, Funan Province, PR China |
| 推荐引用方式 GB/T 7714 | Qian SB,Soonthornthum, B,Xiang, FY,et al. Possible connection between period change and magnetic activity of the very short-period binary VZ piscium[J]. ASTRONOMISCHE NACHRICHTEN,2004,325(9):714-717. |
| APA | Qian SB,Soonthornthum, B,Xiang, FY,Zhu LY,&He JJ.(2004).Possible connection between period change and magnetic activity of the very short-period binary VZ piscium.ASTRONOMISCHE NACHRICHTEN,325(9),714-717. |
| MLA | Qian SB,et al."Possible connection between period change and magnetic activity of the very short-period binary VZ piscium".ASTRONOMISCHE NACHRICHTEN 325.9(2004):714-717. |
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来源：云南天文台
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