Time-domain Modulation of HD 189733 Activities by Its Planet
文献类型：期刊论文
| 作者 | Gao,Yang1,2 |
| 刊名 | The Astronomical Journal
 |
| 出版日期 | 2021-05-07 |
| 卷号 | 161期号:6 |
| 关键词 | Exoplanets Stellar flares |
| ISSN号 | 0004-6256 |
| DOI | 10.3847/1538-3881/abf55d |
| 英文摘要 | Abstract Star–planet interaction can be studied by analyzing exoplanetary orbit and stellar rotation modulations of the transit emissions from exoplanetary systems. Here we carry out a time-domain analysis of the multiband activities of the HD 189733 star–planet system observed in X-ray, atomic lines, and broadband spectra reported in the literature. We find that the number of activities occuring at beat angles (of the planetary orbit and the stellar rotation) concentrating on a sector with a width of 108° are significantly larger than expected from a uniform distribution of activities, which indicates the existence of a major stellar active magnetic field region. The concentration of activities in this active magnetic field region shows their possible origins from the magnetic field interaction between HD 189733 and its close planet HD 189733 b. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-6256-161-6-ABF55D |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/58181]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai 519082, Guangdong, People’s Republic of China 2.CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Gao,Yang. Time-domain Modulation of HD 189733 Activities by Its Planet[J]. The Astronomical Journal,2021,161(6). |
| APA | Gao,Yang.(2021).Time-domain Modulation of HD 189733 Activities by Its Planet.The Astronomical Journal,161(6). |
| MLA | Gao,Yang."Time-domain Modulation of HD 189733 Activities by Its Planet".The Astronomical Journal 161.6(2021). |
入库方式： OAI收割
来源：国家天文台
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