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Magnetic-reconnection exhausts in the sheath of magnetic clouds
Feng, Hengqiang; Wang, Jiemin; Feng, HQ (reprint author), Luoyang Normal Univ, Coll Phys & Elect Informat, Luoyang 471022, Peoples R China.
Department空间科学部
Source PublicationASTRONOMY & ASTROPHYSICS
2013
Volume559Pages:UNSP A92
ISSN0004-6361
Language英语
KeywordSolar-terrestrial Relations Solar Wind Sun: Magnetic Fields
AbstractContext. Reconnection exhausts are a common phenomenon in the solar wind. Many exhausts were observed between an interplanetary coronal mass ejection (ICME) and the ambient solar wind, or between two ICMEs, or within the interior of a single ICME. Observed exhausts are almost exclusively associated with ICMEs with low (often much lower than 1) proton beta. Aims. Often the sheath regions of ICMEs have a high level of plasma beta. Therefore we aim to find out whether the reconnection exhausts occur frequently in the sheath regions of ICMEs. Methods. We examined the plasma and magnetic-field data in the sheath of the magnetic cloud (i.e., ICME) observed on 18-20 October 1995, and identified six reconnection exhausts. Results. The six reconnection exhausts occured within regions of proton beta that was higher than unity. Five of them occurred on a high level (>2.2) of proton beta. Conclusions. Low proton beta is no exclusive condition for magnetic reconnection. Reconnection may occur frequently in the sheath of ICMEs when magnetic fields from different source regions, that is, from diffident orientations, are pushed together.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4969
Collection空间科学部
Corresponding AuthorFeng, HQ (reprint author), Luoyang Normal Univ, Coll Phys & Elect Informat, Luoyang 471022, Peoples R China.
Recommended Citation
GB/T 7714
Feng, Hengqiang,Wang, Jiemin,Feng, HQ . Magnetic-reconnection exhausts in the sheath of magnetic clouds[J]. ASTRONOMY & ASTROPHYSICS,2013,559:UNSP A92.
APA Feng, Hengqiang,Wang, Jiemin,&Feng, HQ .(2013).Magnetic-reconnection exhausts in the sheath of magnetic clouds.ASTRONOMY & ASTROPHYSICS,559,UNSP A92.
MLA Feng, Hengqiang,et al."Magnetic-reconnection exhausts in the sheath of magnetic clouds".ASTRONOMY & ASTROPHYSICS 559(2013):UNSP A92.
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