Doppler imaging of the active star PW And
文献类型：会议论文
| 作者 | Gu SH(顾盛宏); Cameron, AC; Kim, KM; Gu SH(顾盛宏)
|
| 出版日期 | 2010 |
| 会议名称 | 264th Symposium of the International-Astronomical-Union |
| 会议日期 | 2009-08-03 |
| 会议地点 | Rio de Janeiro, BRAZIL |
| 关键词 | stars: late-type stars: activity stars: spots |
| 卷号 | 5 |
| 期号 | 264 |
| 页码 | 90-92 |
| 通讯作者 | Gu, SH (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | We present spot activity of the K2V pre-main-sequence star PW And based on the high-resolution spectroscopic data obtained at Xinglong station and BOAO in 2005 November and December. Using the Least-Squares Deconvolution method, we have derived time series of composite profiles of PW And with high signal to noise ratio. These have been used to reconstruct its starspot pattern via. the Doppler imaging method. The result shows that intermediate to high-latitude spots are the dominant features and weak low-latitude spots also appear. Comparing Doppler images from two data subsets; it can be found that almost no difference between two images exists except the small position evolution of weak low-latitude spots, which suggests that the intermediate to high-latitude spots have longer lifetimes than one month, and the low-latitude spots have shorter lifetimes. |
| 收录类别 | CPCI |
| 产权排序 | 第一完成单位 |
| 会议网址 | http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7277000&fileId=S1743921309992456 |
| 会议录 | IAU Symposium Proceedings Series - SOLAR AND STELLAR VARIABILITY: IMPACT ON EARTH AND PLANETS
 |
| 会议录出版者 | CAMBRIDGE UNIV PRESS |
| 学科主题 | Astronomy & Astrophysics |
| 会议录出版地 | THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND |
| 语种 | 英语 |
| ISSN号 | 1743-9213 |
| ISBN号 | 978-0-521-76492-6 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/297]  |
| 专题 | 云南天文台_恒星物理研究组 |
| 通讯作者 | Gu SH(顾盛宏) |
| 推荐引用方式 GB/T 7714 | Gu SH,Cameron, AC,Kim, KM,et al. Doppler imaging of the active star PW And[C]. 见:264th Symposium of the International-Astronomical-Union. Rio de Janeiro, BRAZIL. 2009-08-03.http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7277000&fileId=S1743921309992456. |
入库方式： OAI收割
来源：云南天文台
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