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OBSERVATIONS OF ENERGETIC PARTICLES BETWEEN A PAIR OF COROTATING INTERACTION REGIONS
Wu, Z.; Chen, Y.; Li, G.; Zhao, L. L.; Ebert, R. W.; Desai, M. I.; Mason, G. M.; Lavraud, B.; Zhao, L.; Liu, Y. C. -M.; Guo, F.; Tang, C. L.; Landi, E.; Sauvaud, J.; Wu, Z (reprint author), Shandong Univ Weihai, Inst Space Sci, Weihai 264209, Peoples R China.
Department空间科学部
Source PublicationASTROPHYSICAL JOURNAL
2014
Volume781Issue:1Pages:17
ISSN0004-637X
Language英语
KeywordAcceleration Of Particles Magnetohydrodynamics (Mhd) Shock Waves Solar Wind Sun: Rotation
AbstractWe report observations of the acceleration and trapping of energetic ions and electrons between a pair of corotating interaction regions (CIRs). The event occurred in Carrington Rotation 2060. Observed by the STEREO-B spacecraft, the two CIRs were separated by less than 5 days. In contrast to other CIR events, the fluxes of the energetic ions and electrons in this event reached their maxima between the trailing edge of the first CIR and the leading edge of the second CIR. The radial magnetic field (B-r) reversed its sense and the anisotropy of the flux also changed from Sunward to anti-Sunward between the two CIRs. Furthermore, there was an extended period of counterstreaming suprathermal electrons between the two CIRs. Similar observations for this event were also obtained with the Advanced Composition Explorer and STEREO-A. We conjecture that these observations were due to a U-shaped, large-scale magnetic field topology connecting the reverse shock of the first CIR and the forward shock of the second CIR. Such a disconnected U-shaped magnetic field topology may have formed due to magnetic reconnection in the upper corona.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2768
Collection空间科学部
Corresponding AuthorWu, Z (reprint author), Shandong Univ Weihai, Inst Space Sci, Weihai 264209, Peoples R China.
Recommended Citation
GB/T 7714
Wu, Z.,Chen, Y.,Li, G.,et al. OBSERVATIONS OF ENERGETIC PARTICLES BETWEEN A PAIR OF COROTATING INTERACTION REGIONS[J]. ASTROPHYSICAL JOURNAL,2014,781(1):17.
APA Wu, Z..,Chen, Y..,Li, G..,Zhao, L. L..,Ebert, R. W..,...&Wu, Z .(2014).OBSERVATIONS OF ENERGETIC PARTICLES BETWEEN A PAIR OF COROTATING INTERACTION REGIONS.ASTROPHYSICAL JOURNAL,781(1),17.
MLA Wu, Z.,et al."OBSERVATIONS OF ENERGETIC PARTICLES BETWEEN A PAIR OF COROTATING INTERACTION REGIONS".ASTROPHYSICAL JOURNAL 781.1(2014):17.
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