| 题名 | Three-dimensional Magnetohydrodynamic Simulations of Periodic Variations of Ganymede's Footprint |
| 作者 | |
| 通讯作者 | Yan, Tao |
| 发表日期 | 2024-04-01
|
| DOI | |
| 发表期刊 | |
| ISSN | 0004-637X
|
| EISSN | 1538-4357
|
| 卷号 | 965期号:1 |
| 摘要 | Alfvenic power is generated through the interaction between the mini-magnetosphere of Ganymede and the corotating flow of the Jovian plasma, contributing to the formation of the Ganymede auroral footprint at Jupiter's ionosphere. Using a three-dimensional, high-resolution global magnetohydrodynamic model of the Ganymede magnetosphere, we investigate the temporal variations of the Alfvenic power generated in the mini-magnetosphere of the moon under steady-state upstream conditions. Results show that (1) the Alfvenic power caused by the intermittent magnetic reconnections and the Kelvin-Helmholtz instabilities is quasiperiodic, varying over time with the periods about 71-333 s, which are consistent with the 100 s timescale periodicities of the Ganymede footprint's emitted power; and (2) the magnitude of the Alfvenic power is smaller when Ganymede is inside the Jovian plasma sheet where the B y component is smaller, and larger when the moon is outside the plasma sheet where the B y component is larger. |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 其他
|
| 资助项目 | Chinese Academy of Sciences (CAS)https://doi.org/10.13039/501100002367[XDB41000000]
; Chinese Academy of Sciences[41922060]
; RGC General Research Fund["17308520","17315222","17308723"]
|
| WOS研究方向 | Astronomy & Astrophysics
|
| WOS类目 | Astronomy & Astrophysics
|
| WOS记录号 | WOS:001198888600001
|
| 出版者 | |
| ESI学科分类 | SPACE SCIENCE
|
| 来源库 | Web of Science
|
| 引用统计 | |
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/788697 |
| 专题 | 理学院_地球与空间科学系 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Lunar & Deep Space Explorat, Natl Astron Observ, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing, Peoples R China 3.Univ Hong Kong, Dept Earth Sci, Pokfulam, Hong Kong, Peoples R China 4.Univ Hong Kong, Lab Space Res, Pokfulam, Hong Kong, Peoples R China 5.Univ Sci & Technol China, Sch Earth & Space Sci, Deep Space Explorat Lab, Hefei, Peoples R China 6.Univ Sci & Technol China, CAS Ctr Excellence Comparat Planetol, CAS Key Lab Geospace Environm, Mengcheng Natl Geophys Observ, Hefei, Peoples R China 7.Collaborat Innovat Ctr Astronaut Sci & Technol, Harbin, Peoples R China 8.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Guangdong, Peoples R China 9.Sun Yat Sen Univ, Sch Atmospher Sci, Planetary Environm & Astrobiol Res Lab PEARL, Zhuhai, Peoples R China 10.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Yan, Tao,Zhang, Binzheng,Chen, Junjie,et al. Three-dimensional Magnetohydrodynamic Simulations of Periodic Variations of Ganymede's Footprint[J]. ASTROPHYSICAL JOURNAL,2024,965(1).
|
| APA |
Yan, Tao.,Zhang, Binzheng.,Chen, Junjie.,Zheng, Zhiqi.,Yang, Ziyi.,...&Cui, Jun.(2024).Three-dimensional Magnetohydrodynamic Simulations of Periodic Variations of Ganymede's Footprint.ASTROPHYSICAL JOURNAL,965(1).
|
| MLA |
Yan, Tao,et al."Three-dimensional Magnetohydrodynamic Simulations of Periodic Variations of Ganymede's Footprint".ASTROPHYSICAL JOURNAL 965.1(2024).
|
| 条目包含的文件 | 条目无相关文件。 | |||||
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。
; 
修改评论