IGGCAS OpenIR  > 地球与行星物理院重点实验室
The Merging of Two Stream Interaction Regions within 1 au: The Possible Role of Magnetic Reconnection
Wang, Zehao1,2; Guo, Jianpeng3,4,5; Feng, Xueshang1; Liu, Chaoxu1; Huang, Hui3; Lin, Haibo3; Tan, Chenming5; Yan, Yihua5; Wan, Weixing2,4
2018-12-10
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume869Issue:1Pages:7
AbstractAs the Sun rotates, a fast stream can overtake a preceding slow stream, leading to the formation of a stream interaction region (SIR). Two neighboring SIRs may eventually coalesce to produce a merged interaction region (MIR) en route to the outer heliosphere. However, instances of significant interaction and merging of two neighboring SIRs within 1 au are thought to be extremely rare. In this Letter, we present a case report of two interacting and merging SIRs observed near 1 au, which was associated with two adjacent low-latitude coronal holes. The two SIRs were filled with outward propagating Alfvenic fluctuations associated with magnetohydrodynamic turbulence. A reconnection exhaust associated with a current sheet was identified. We suggest that magnetic reconnection represented a potentially important mechanism for the merging of two neighboring SIRs. This observation may shed light on the understanding of the structure and formation of a MIR within 1 au.
Keywordmagnetic reconnection solar wind
DOI10.3847/2041-8213/aaf398
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories
WOS KeywordWIND ; STEREO ; PLASMA
Language英语
Funding ProjectNational Natural Science Foundation of China[41674147] ; National Natural Science Foundation of China[41731067] ; National Natural Science Foundation of China[41531073] ; National Natural Science Foundation of China[61872047] ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories[KLSA201802] ; Specialized Research Fund for State Key Laboratories
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000452550800001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90278
Collection地球与行星物理院重点实验室
Corresponding AuthorGuo, Jianpeng
Affiliation1.Chinese Acad Sci, NSSC, State Key Lab Space Weather, SIGMA Weather Grp, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
3.Beijing Normal Univ, Dept Astron, Planetary & Space Phys Grp, Beijing 100875, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Wang, Zehao,Guo, Jianpeng,Feng, Xueshang,et al. The Merging of Two Stream Interaction Regions within 1 au: The Possible Role of Magnetic Reconnection[J]. ASTROPHYSICAL JOURNAL LETTERS,2018,869(1):7.
APA Wang, Zehao.,Guo, Jianpeng.,Feng, Xueshang.,Liu, Chaoxu.,Huang, Hui.,...&Wan, Weixing.(2018).The Merging of Two Stream Interaction Regions within 1 au: The Possible Role of Magnetic Reconnection.ASTROPHYSICAL JOURNAL LETTERS,869(1),7.
MLA Wang, Zehao,et al."The Merging of Two Stream Interaction Regions within 1 au: The Possible Role of Magnetic Reconnection".ASTROPHYSICAL JOURNAL LETTERS 869.1(2018):7.
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