中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Spectra and solar energetic protons over 20 GeV in Bastille Day event

文献类型:期刊论文

作者Wang RG(王瑞光); Wang, RG; Wang, JX
刊名ASTROPARTICLE PHYSICS
出版日期2006
卷号25期号:1页码:#REF!
关键词solar flare solar energetic proton ground level enhancement solar energy spectra Monte Carlo simulation
通讯作者Wang, RG (reprint author), Chinese Acad Sci, Inst High Energy Phys, Ctr Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China.
英文摘要Solar energetic particles (SEPs) from large solar flares give important information about the physical process in the solar corona and the heliosphere. Several observations have indicated that solar protons could sometimes be accelerated to at least tens of GeV, even hundreds of GeV, in intense solar energetic process. We studied the solar proton differential energy spectra with energy range of 1-500 MeV at several time intervals during Bastille Day event. It was shown that the spectra could be fitted by a power law function before flare and after flare the power law spectra still existed above 30 MeV although spectra became softer with time. There was a spectral "knee" occurring at similar to 30 MeV. We constructed a solar proton differential spectrum from 30 MeV to 3 GeV at peak flux time 10:30 UT and fitted it in the same manner. On the basis of a supposition of having the same power law spectrum in higher energy, we calculated the solar proton integrated fluxes in energy range of from 500 MeV to 20 GeV and compared them with other results obtained from experimental, modelling and theoretical calculations in other big historic SEP events. A Monte Carlo simulation was carried out for a primary proton beam at the top of the atmosphere producing secondary muons on the ground. Based on the simulation, possibility of registering the solar energetic proton beams with energies over 20 GeV was discussed. (c) 2005 Elsevier B.V. All rights reserved.
学科主题Astronomy & Astrophysics; Physics
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000235422100004
公开日期2016-05-03
源URL[http://ir.ihep.ac.cn/handle/311005/225690]  
专题高能物理研究所_粒子天体物理中心
推荐引用方式
GB/T 7714
Wang RG,Wang, RG,Wang, JX. Spectra and solar energetic protons over 20 GeV in Bastille Day event[J]. ASTROPARTICLE PHYSICS,2006,25(1):#REF!.
APA 王瑞光,Wang, RG,&Wang, JX.(2006).Spectra and solar energetic protons over 20 GeV in Bastille Day event.ASTROPARTICLE PHYSICS,25(1),#REF!.
MLA 王瑞光,et al."Spectra and solar energetic protons over 20 GeV in Bastille Day event".ASTROPARTICLE PHYSICS 25.1(2006):#REF!.

入库方式: OAI收割

来源:高能物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。