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arXiv 2002.12708astro-ph.SRphysics.space-ph
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第21-24太阳活动周太阳黑子的特征

Characteristics of SEPs during Solar Cycle 21-24

Raj Kumar, Ramesh Chandra, Bimal Pande, Seema Pande

摘要:

研究太阳高能粒子事件(SEP)及其与太阳耀斑等活动的关系,对于认识空间天气具有重要意义。考虑到这一点,在本文中,我们提出了在太阳周期21至24(1976-2017)期间,在与太阳耀斑相关的> 10 MeV能量通道中的SEP(强度等于或大于10 pfu)的研究。为了我们的分析,我们使用了SOHO卫星上不同仪器的数据。我们已经研究了耀斑的大小,源位置,CME特征的相关SEP。来自东、西太阳半球的SEP分别占31%和69%。CME的平均速度和宽度分别为1238公里/秒和253度。约58%的SEP与晕状CME相关,42%的SEP与宽度在10 °至250 °之间的CME相关。

英文摘要:

The study of the solar energetic particle events (SEPs) and their association with solar flares and other activities are very crucial to understand the space weather. Keeping this in view, in this paper, we present the study of the SEPs (intensity equal to or greater than 10 pfu) during the solar cycle 21 to 24 (1976-2017) in > 10 MeV energy channels associated with solar flares. For our analysis, we have used the data from different instruments onboard SOHO satellite. We have examined the flare size, source location, CMEs characteristics of associated SEPs. About 31% and 69% of the SEPs were originated from the eastern and western solar hemisphere respectively. The average CME speed and width were 1238 km/s and 253 deg respectively. About 58 % SEPs were associated with halo CMEs and 42% of SEPs associated with CMEs width varying from 10 deg to 250 deg respectively.

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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