Nonthermal Atmospheric Escape on the Kepler-11 Super-Earths Driven by Stellar Wind Sputtering
文献类型：期刊论文
| 作者 | Gu, Hao2; Wu, Xiaoshu2,3; Huang, Xu2; Guo JH(郭建恒)1 ; Cui, Jun2,3
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2023-12-01 |
| 卷号 | 959期号:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad0a84 |
| 产权排序 | 第3完成单位 |
| 文献子类 | Article |
| 英文摘要 | Jeans escape or hydrodynamic escape is believed to dominate atmospheric loss for hot Jupiters. However, nonthermal mechanisms likely contribute substantially on hydrogen-rich super-Earths with relatively cold and extended atmospheres. This study is devoted to investigating the role of stellar wind sputtering on Kepler-11b-f, with the aid of Monte Carlo test particle calculations. Such a mechanism is widely known to be important on many solar system bodies, but its impact has never been evaluated rigorously on any exoplanet. Our calculations reveal complicated variations of the H sputtering yield with the stellar wind inclination angle and neutral heating efficiency at different Kepler-11 planets. Further calculations suggest the H loss rates on Kepler-11b-f to be 2.8 x 106-1.5 x 108 g s-1, driven by stellar wind sputtering. The H loss rate obtained here is compared to those driven by other mechanisms, indicating that the importance of stellar wind sputtering is highly variable and this mechanism could induce a large atmospheric loss rate comparable to the blow-off rate driven by stellar far-ultraviolet radiation, in particular for planets with relatively low gravities. |
| 学科主题 | 天文学 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | MONTE-CARLO CALCULATIONS ; ENERGY DEPOSITION ; ION PRECIPITATION ; CHARGE-TRANSFER ; HELIUM ESCAPE ; LOW-MASS ; PLANETS ; MARS ; EVOLUTION ; HYDROGEN |
| 资助项目 | National Natural Science Foundation of China; Chinese Academy of Sciences (CAS)[XDB41000000]; Key Research Program[IGGCAS-201904]; Institute of Geology and Geophysics, CAS; Guangdong Basic and Applied Basic Research Foundation; |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001116565300001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS)[XDB41000000] ; Key Research Program[IGGCAS-201904] ; Institute of Geology and Geophysics, CAS ; Guangdong Basic and Applied Basic Research Foundation ; [42105120] ; [42274218] ; [11973082] ; [2023A1515012088] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/26459]  |
| 专题 | 云南天文台_恒星物理研究组 |
| 作者单位 | 1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan, People's Republic of China 2.Planetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China; wuxsh23@mail.sysu.edu.cn; 3.Center for Excellence in Comparative Planetology, Chinese Academy of Sciences, Hefei, Anhui, People's Republic of China; |
| 推荐引用方式 GB/T 7714 | Gu, Hao,Wu, Xiaoshu,Huang, Xu,et al. Nonthermal Atmospheric Escape on the Kepler-11 Super-Earths Driven by Stellar Wind Sputtering[J]. ASTROPHYSICAL JOURNAL,2023,959(2). |
| APA | Gu, Hao,Wu, Xiaoshu,Huang, Xu,郭建恒,&Cui, Jun.(2023).Nonthermal Atmospheric Escape on the Kepler-11 Super-Earths Driven by Stellar Wind Sputtering.ASTROPHYSICAL JOURNAL,959(2). |
| MLA | Gu, Hao,et al."Nonthermal Atmospheric Escape on the Kepler-11 Super-Earths Driven by Stellar Wind Sputtering".ASTROPHYSICAL JOURNAL 959.2(2023). |
入库方式： OAI收割
来源：云南天文台
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