DOI: 10.1002/2017JA024849
Scopus记录号: 2-s2.0-85047507319
论文题名: Properties of the HPS-ICME-CIR Interaction Event of 9–10 September 2011
作者: Al-Shakarchi D.A. ; Morgan H.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 4 起始页码: 2535
结束页码: 2556
语种: 英语
英文关键词: corotating interaction region, CIR
; heliospheric plasma sheet
; ICME-CIR interaction
; interchange reconnection
; interplanetary coronal mass ejection, ICME
; solar wind plasma
英文摘要: During 9–10 September 2011 the ACE, Wind, and SOHO spacecraft measured the complex interaction between an interplanetary coronal mass ejection (ICME) and a corotating interaction region (CIR) associated with the heliospheric sector boundary. Except for a few short periods, the suprathermal electrons are unidirectional, suggesting that the ICME magnetic field has opened through interchange reconnection. Signatures of interaction are distributed throughout the event suggesting that the structures have become entangled or embedded. Since the ICME speed is relatively low, the strong forward shock must be caused by the ICME-CIR interaction. Other interesting features are the upstream heating flux discontinuity, the very high proton density in the frontal boundary of the heliospheric plasma sheet and the forward shock, the significant speed elevation within the sheath, the distortion of Bz in the magnetic cloud, the indistinct location of the stream interface, the unidirectional domination of the suprathermal electrons, and the reverse shock at the CIR rear boundary. There is an unusual delay between the proton density and temperature profiles. Furthermore, large differences in proton speed and forward shock density measured between L1 spacecraft indicate high variation at small spatial scales. A few days earlier, STEREO B recorded the undisturbed CIR, which shows that (i) some general features of the CIR are preserved, (ii) the CIR is compressed by a factor of ∼4 by the ICME, and (iii) a magnetic exhausted region at the front of the CIR is a continuous feature and is not formed due to the ICME interaction. ©2018. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114212
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Mathematics, Physics and Computer Science, Aberystwyth University, Aberystwyth, United Kingdom
Recommended Citation:
Al-Shakarchi D.A.,Morgan H.. Properties of the HPS-ICME-CIR Interaction Event of 9–10 September 2011[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(4)