Magnetic activity of the spotted dwarf AP149 in the alpha Persei open cluster
文献类型：期刊论文
| 作者 | Fang XS(房祥松)1,2 ; Gu SH(顾盛宏)1; Cheung, SL3; Hui, HK3; Kwok, CT3; Leung, KC4
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2010-03 |
| 卷号 | 10期号:3页码:253-265 |
| 关键词 | stars: activity stars: late-type stars: spots stars: individual: AP149 |
| ISSN号 | 1674-4527 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Fang, XS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | The simultaneous photometric and spectroscopic observations of the spotted G dwarf AP149 in the young open cluster alpha Persei are analyzed here. We reconstruct the observed light curves with a two-starspot model by means of a light curve modeling technique, and find that the active regions shift oppositely along longitude on a time scale of one day. Combining with the observational data obtained by other groups, we discuss the evolution of spotted regions in the photosphere, and find that its starspots evolve not only on a short time scale but also on a long time scale. The pure chromospheric emissions for Ca IIHK and H(beta) lines are derived by using the spectral subtraction technique. The variation of Ca IIHK lines' excess emission is spatially correlated to the starspot regions. There is no clear rotational modulation for the H(beta) line's excess emission, probably due to the contamination of prominence emission. |
| 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] | RS-CANUM-VENATICORUM ; CHROMOSPHERIC H-ALPHA ; LATE-TYPE STARS ; LOW-MASS STARS ; ROTATION PERIODS ; CLOSE BINARIES ; MAIN-SEQUENCE ; SYSTEMS ; ENVIRONMENTS ; SPECTROSCOPY |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/1674-4527/10/3/007/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000275962900007 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5203]  |
| 专题 | 云南天文台_恒星物理研究组 |
| 作者单位 | 1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3.Ho Koon Nature Education cum Astronomical Centre, Sik Sik Yuen, Hong Kong, China 4.Hong Kong Astronomical Society, Hong Kong, China |
| 推荐引用方式 GB/T 7714 | Fang XS,Gu SH,Cheung, SL,et al. Magnetic activity of the spotted dwarf AP149 in the alpha Persei open cluster[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2010,10(3):253-265. |
| APA | Fang XS,Gu SH,Cheung, SL,Hui, HK,Kwok, CT,&Leung, KC.(2010).Magnetic activity of the spotted dwarf AP149 in the alpha Persei open cluster.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,10(3),253-265. |
| MLA | Fang XS,et al."Magnetic activity of the spotted dwarf AP149 in the alpha Persei open cluster".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 10.3(2010):253-265. |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。