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arXiv 1009.3579astro-ph.SR
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2005年7月从低日冕到地球的太阳极端事件的空间风暴测量

Space storm measurements of the July 2005 solar extreme events from the low corona to the Earth

C. Caroubalos, P. Preka-Papadema, H. Mavromichalaki, X. Moussas, A. Papaioannou, E. Mitsakou, A. Hillaris

摘要:

雅典中子监测器数据处理中心(ANMODAP)记录了一次不寻常的福布什下降,在2005年7月16日福布什下降的主要阶段之后,宇宙射线强度急剧增强,随后在不到12小时内第二次下降。这一异常事件既不是地平面增强,也不是宇宙射线的地磁效应。它更像是2005年7月13-14日期间一组日冕物质抛射(CME)产生的行星际扰动的特殊结构的影响。日冕物质抛射的开始伴随着IV型射电爆发和太阳西翼(AR 786)的强烈太阳耀斑(SF);这组高能现象出现在2005年7月的太阳极端事件的标签下。我们研究了这些事件的特点,使用组合数据从地球(ARTEMIS IV射电日像仪,雅典中子监测器(ANMODAP)),空间(风/波)和数据档案。我们提出了一个不寻常的福布什配置文件的磁结构和一系列行星际冲击与磁层相互作用的解释。

英文摘要:

The Athens Neutron Monitor Data Processing (ANMODAP) Center recorded an unusual Forbush decrease with a sharp enhancement of cosmic ray intensity right after the main phase of the Forbush decrease on 16 July 2005, followed by a second decrease within less than 12 h. This exceptional event is neither a ground level enhancement nor a geomagnetic effect in cosmic rays. It rather appears as the effect of a special structure of interplanetary disturbances originating from a group of coronal mass ejections (CMEs) in the 13-14 July 2005 period. The initiation of the CMEs was accompanied by type IV radio bursts and intense solar flares (SFs) on the west solar limb (AR 786); this group of energetic phenomena appears under the label of Solar Extreme Events of July 2005. We study the characteristics of these events using combined data from Earth (the ARTEMIS IV radioheliograph, the Athens Neutron Monitor (ANMODAP)), space (WIND/WAVES) and data archives. We propose an interpretation of the unusual Forbush profile in terms of a magnetic structure and a succession of interplanetary shocks interacting with the magnetosphere.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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