Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris
文献类型：期刊论文
| 作者 | Liu QY(刘清耀)1,2
|
| 刊名 | ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
 |
| 出版日期 | 1993-10 |
| 卷号 | 101期号:1页码:49-57 |
| 关键词 | ECLIPSING BINARY UVBY PHOTOMETRY PHOTOMETRIC SOLUTIONS BINARY ACTIVITY |
| ISSN号 | 0365-0138 |
| 产权排序 | 第二完成单位 |
| 通讯作者 | LIU, QY |
| 英文摘要 | This paper presents complete uvby light curves and photometric solutions for the short-period eclipsing binary V Crateris (P = 0.702 day). The previously reported orbital eccentricity is not confirmed. The asymmetry and nightly variability of the light curves suggest that V Crt is an active spotted binary. An extensive search for a reliable mass ratio q was carried out using the 1992 version of the Wilson-Devinney program. The solutions of the uvby light curves indicate that V Crt is a semi-detached system with the secondary component filling its Roche lobe. The asymmetric appearance of the light curves can be explained by introducing a cool spot on one side of the secondary component. The astrophysical parameters of the individual components of the system have been derived by combining the observed uvbybeta photometry with the photometric solution. These parameters suggest that both components are slightly evolved main-sequence stars. V Crt has several of the characteristics of the group of short-period Algol binaries and may be an example of case A mass transfer. |
| 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] | EMPIRICAL CALIBRATIONS ; BETA-SYSTEMS ; STARS ; MASSES ; UVBY |
| 收录类别 | SCI |
| 原文出处 | http://adsabs.harvard.edu/abs/1993A%26AS..101...49L |
| 语种 | 英语 |
| WOS记录号 | WOS:A1993MA98800003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4057]  |
| 专题 | 云南天文台_其他 |
| 作者单位 | 1.Copenhagen University Observaotry, Brofeldevej 23, DK-4340 Tollose, Denmark 2.Yunnan Observatory, P.O. Box 110, Kunming, China |
| 推荐引用方式 GB/T 7714 | Liu QY. Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,1993,101(1):49-57. |
| APA | Liu QY.(1993).Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,101(1),49-57. |
| MLA | Liu QY."Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 101.1(1993):49-57. |
入库方式： OAI收割
来源：云南天文台
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