NSSC OpenIR
Multipoint Observations of Magnetosheath Response to Foreshock Transients
Alternative TitleWOS:000535395800044
Cai, Chunlin; Wei, Xinhua
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2020
Volume125Issue:2Pages:e2019JA027416
DOI10.1029/2019JA027416
ISSN2169-9380
Language英语
KeywordHOT FLOW ANOMALIES BOW SHOCK ION-ACCELERATION CLUSTER CAVITIES MAGNETOPAUSE IMPACTS JETS WIND
AbstractMultispacecraft observations of the magnetosheath responses to various foreshock transients in a single event on 17 March 2004 are reported in this paper. The Cluster spacecraft recorded long-standing large amplitude ULF waves with both compressive and transverse components in the magnetosheath. Additionally, two transient structures with depressions in density and magnetic field were observed in this period. One structure contains greatly heated and significantly deflected plasmas in the middle and a cold solar wind population at its trailing edge, which is identified as a spontaneous hot flow anomaly with a remnant of the foreshock caviton. It is transmitted through the magneosheath and evolved into a magnetosheath cavity. This cavity was subsequently encountered by the Double Star TC-1 spacecraft deeper inside the magnetosheath. Meantime, fluxes of hot ions in the energy range of 5-38 keV exhibit quasiperiodic variations. These energetic ions are earthward with pitch angle distributions of alternately field aligned or antifield aligned. A correlation between its flux variations and the transverse fluctuations of the ULF waves is found. Moreover, magnetosheath filamentary structures with a series of anticorrelated oscillations of density and temperature were observed simultaneously.
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7582
Collection中国科学院国家空间科学中心
AffiliationChinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Cai, Chunlin,Wei, Xinhua. Multipoint Observations of Magnetosheath Response to Foreshock Transients[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2020,125(2):e2019JA027416.
APA Cai, Chunlin,&Wei, Xinhua.(2020).Multipoint Observations of Magnetosheath Response to Foreshock Transients.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,125(2),e2019JA027416.
MLA Cai, Chunlin,et al."Multipoint Observations of Magnetosheath Response to Foreshock Transients".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 125.2(2020):e2019JA027416.
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