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题名: Evidence for shock generation in the solar corona in the absence of coronal mass ejections
作者: Eselevich, V. G.; Eselevich, M. V.; Zimovets, I. V.; Sharykin, I. N.
作者部门: 空间科学部
通讯作者: Eselevich, VG (reprint author), Russian Acad Sci, Inst Solar Terr Phys, Siberian Branch, Irkutsk 664033, Russia.
刊名: ASTRONOMY REPORTS
ISSN号: 1063-7729
出版日期: 2017
卷号: 61, 期号:9, 页码:805-819
收录类别: SCI
项目资助者: Russian Foundation for Basic Research [15-32-21078-young-a-leading, 16-32-00462-young-a]
英文摘要: The solar event SOL2012-10-23T03:13, which was associated with a X1.8 flare without an accompanying coronal mass ejection (CME) and with a Type II radio burst, is analyzed. A method for constructing the spatial and temporal profiles of the difference brightness detected in the AIA/SDOUVand EUV channels is used together with the analysis of the Type II radio burst. The formation and propagation of a region of compression preceded by a collisional shock detected at distances R < 1.3R (aS (TM)) from the center of the Sun is observed in this event (R (aS (TM)) is the solar radius). Comparison with a similar event studied earlier, SOL2011-02-28T07:34 [1], suggests that the region of compression and shock could be due to a transient (impulsive) action exerted on the surrounding plasma by an eruptive, high-temperature magnetic rope. The initial instability and eruption of this rope could be initiated by emerging magnetic flux, and its heating from magnetic reconnection. The cessation of the eruption of the rope could result from its interaction with surrounding magnetic structures (coronal loops).
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6116
Appears in Collections:空间科学部_期刊论文

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