Constraints on electron temperature anisotropies in sheath regions of interplanetary shocks
文献类型：期刊论文
| 作者 | Xu, Dan; Chen, Tao |
| 刊名 | PLANETARY AND SPACE SCIENCE
 |
| 出版日期 | 2012 |
| 卷号 | 62期号:1页码:100-103 |
| 关键词 | Sheath region Whistler anisotropy instability Fire hose instability Temperature anisotropy IP sheath region |
| ISSN号 | 0032-0633 |
| 通讯作者 | Xu, D (reprint author), State Key Lab Space Weather, Beijing, Peoples R China. |
| 中文摘要 | A statistical study of electron data observed within magnetosheath regions after interplanetary (IP) shocks driven by magnetic clouds has been performed to understand the constraints on temperature anisotropies of suprathermal electron component due to collective effects of electron wave-particle interactions with plasma micro-instabilities. Results show that although shock heating and acceleration, downstream selective reflection and leakage into upstream region, and wave-particle scattering all can contribute to suprathermal electron temperature anisotropy in downstream sheath regions of IP shocks, the consequent whistler anisotropy instabilities triggered by the sufficiently large temperature anisotropies can constrain temperature anisotropy increase to a more nearly isotropic distribution as plasma beta increases. (C) 2011 Elsevier Ltd. All rights reserved. |
| 英文摘要 | A statistical study of electron data observed within magnetosheath regions after interplanetary (IP) shocks driven by magnetic clouds has been performed to understand the constraints on temperature anisotropies of suprathermal electron component due to collective effects of electron wave-particle interactions with plasma micro-instabilities. Results show that although shock heating and acceleration, downstream selective reflection and leakage into upstream region, and wave-particle scattering all can contribute to suprathermal electron temperature anisotropy in downstream sheath regions of IP shocks, the consequent whistler anisotropy instabilities triggered by the sufficiently large temperature anisotropies can constrain temperature anisotropy increase to a more nearly isotropic distribution as plasma beta increases. (C) 2011 Elsevier Ltd. All rights reserved. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI ; EI |
| 资助信息 | Chinese Natural Science Foundation [40921063, 40774081, 40731054, 201103811404]; Chinese Double Star Plan and Innovative Foundation of Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3112]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Xu, Dan,Chen, Tao. Constraints on electron temperature anisotropies in sheath regions of interplanetary shocks[J]. PLANETARY AND SPACE SCIENCE,2012,62(1):100-103. |
| APA | Xu, Dan,&Chen, Tao.(2012).Constraints on electron temperature anisotropies in sheath regions of interplanetary shocks.PLANETARY AND SPACE SCIENCE,62(1),100-103. |
| MLA | Xu, Dan,et al."Constraints on electron temperature anisotropies in sheath regions of interplanetary shocks".PLANETARY AND SPACE SCIENCE 62.1(2012):100-103. |
入库方式： OAI收割
来源：国家空间科学中心
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