Possible mass and angular momentum loss in Algol-type binaries. IV. UU Andromedae and Z Persei
文献类型：期刊论文
| 作者 | Qian SB(钱声帮)1,2
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2001-09 |
| 卷号 | 122期号:3页码:1561-1568 |
| 关键词 | binaries : close stars : individual (UU Andromedae, Z Persei, BO Monocerotis, Y Piscium) stars : mass loss |
| 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 | The orbital periods of two Algol-type binaries, UU And and Z Per, are studied based on the analysis of the O-C data. It is discovered that the orbital period of UU And shows seven irregular jumps while it undergoes a secular decrease with rate of dP/dt = -4.76x10(-7) days yr(-1). For Z Per, seven irregular period jumps are also found superposed on a rapid period decrease (dP/dt = -1.54x10(-6) days yr(-1)). Meanwhile, the orbital period changes of two other systems, BO Mon and Y Psc, studied in Paper II of this series, are reinvestigated by combining our previous data with earlier published times of light minimum. The secular period decrease rates of the two systems are revised, and apart from the sudden jumps proposed in Paper II, additional period jumps superposed on the secular period decrease are found. The period changes of these systems, both the decreases and the jumps, can be explained by secular mass and angular momentum loss via magnetic braking. |
| 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 |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/1538-3881/122/3/1561/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000170997700035 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5748]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 作者单位 | 1.Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China 2.National Astronomical Observatories and United Laboratory of Optical Astronomy, Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Qian SB. Possible mass and angular momentum loss in Algol-type binaries. IV. UU Andromedae and Z Persei[J]. ASTRONOMICAL JOURNAL,2001,122(3):1561-1568. |
| APA | Qian SB.(2001).Possible mass and angular momentum loss in Algol-type binaries. IV. UU Andromedae and Z Persei.ASTRONOMICAL JOURNAL,122(3),1561-1568. |
| MLA | Qian SB."Possible mass and angular momentum loss in Algol-type binaries. IV. UU Andromedae and Z Persei".ASTRONOMICAL JOURNAL 122.3(2001):1561-1568. |
入库方式： OAI收割
来源：云南天文台
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