Temperature anisotropy in a shocked plasma: Mirror-mode instabilities in the heliosheath | |
Liu, Y; Richardson, JD; Belcher, JW; Kasper, JC; Liu, Y (reprint author), MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA. | |
Department | 空间科学部 |
Source Publication | ASTROPHYSICAL JOURNAL
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2007 | |
Volume | 659Issue:1Pages:L65-L68 |
ISSN | 0004-637X |
Language | 英语 |
Keyword | Instabilities Shock Waves Solar Wind |
Abstract | We show that temperature anisotropies induced at a shock can account for interplanetary and planetary bow shock observations. Shocked plasma with enhanced plasma beta is preferentially unstable to the mirror-mode instability downstream of a quasi-perpendicular shock and to the fire-hose instability downstream of a quasi-parallel shock, consistent with magnetic fluctuations observed downstream of a large variety of shocks. Our theoretical analysis of the solar wind termination shock suggests that the magnetic holes observed by Voyager 1 in the heliosheath are produced by the mirror-mode instability. The results are also of astrophysical interest, providing an energy source for plasma heating. |
Indexed By | SCI |
Document Type | 期刊论文 |
Identifier | http://ir.nssc.ac.cn/handle/122/5172 |
Collection | 空间科学部 |
Corresponding Author | Liu, Y (reprint author), MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA. |
Recommended Citation GB/T 7714 | Liu, Y,Richardson, JD,Belcher, JW,et al. Temperature anisotropy in a shocked plasma: Mirror-mode instabilities in the heliosheath[J]. ASTROPHYSICAL JOURNAL,2007,659(1):L65-L68. |
APA | Liu, Y,Richardson, JD,Belcher, JW,Kasper, JC,&Liu, Y .(2007).Temperature anisotropy in a shocked plasma: Mirror-mode instabilities in the heliosheath.ASTROPHYSICAL JOURNAL,659(1),L65-L68. |
MLA | Liu, Y,et al."Temperature anisotropy in a shocked plasma: Mirror-mode instabilities in the heliosheath".ASTROPHYSICAL JOURNAL 659.1(2007):L65-L68. |
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