PMO OpenIR  > 太阳高能及相关物理过程研究团组
AN INTERPRETATION OF GLE71 CONCURRENT CME-DRIVEN SHOCK WAVE
Firoz, Kazi A.1,2; Zhang, Q. M.2; Gan, W. Q.2; Li, Y. P.2; Rodriguez-Pacheco, J.1; Moon, Y. -J.3; Kudela, K.4; Park, Y. -D.5; Dorman, Lev I.6,7
2014-08-01
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN0067-0049
Volume213Issue:2Pages:0
AbstractParticle accelerations in solar flares and CME-driven shocks can sometimes result in very high-energy particle events (>= 1 GeV) that are known as ground level enhancements (GLEs). Recent studies on the first GLE event (GLE71 2012 May 17 01:50 UT) of solar cycle 24 suggested that CME-driven shock played a leading role in causing the event. To verify this claim, we have made an effort to interpret the GLE71 concurrent shock wave. For this, we have deduced the possible speed and height of the shock wave in terms of the frequency (MHz) of the solar radio type II burst and its drift rate (MHz min(-1)), and studied the temporal evolution of the particle intensity profiles at different heights of the solar corona. For a better perception of the particle acceleration in the shock, we have studied the solar radio type II burst with concurrent solar radio and electron fluxes. When the particle intensity profiles are necessarily shifted in time at similar to 1 AU, it is found that the growth phases of the electron and cosmic ray intensity fluxes are strongly correlated (>0.91; >= 0.87) with the frequency drift rate of the type II burst, which is also consistent with the intensive particle accelerations at upper coronal heights (similar to >= 0.80 R-S < 1.10 R-S). Thus, we conclude that the CME-driven shock was possibly capable of producing the high-energy particle event. However, since the peaks of some flare components are found to be strongly associated with the fundamental phase of the type II burst, the preceding flare is supposed to contribute to the shock acceleration process.
KeywordSun: Corona Sun: Coronal Mass Ejections (Cmes) Sun: Evolution Sun: Flares Sun: Heliosphere Sun: Particle Emission
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0067-0049/213/2/24
WOS KeywordGROUND-LEVEL ENHANCEMENT ; CORONAL MASS EJECTIONS ; SOLAR ENERGETIC PARTICLES ; III RADIO-BURSTS ; WIND SPACECRAFT ; INTERPLANETARY SPACE ; POSSIBLE MECHANISMS ; EVENTS ; FLARE ; ORIGIN
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Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000341777400006
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10625
Collection太阳高能及相关物理过程研究团组
Affiliation1.Univ Alcala De Henares, Space Res Grp, E-28871 Alcala De Henares, Spain
2.Purple Mt Observ, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
3.Kyung Hee Univ, Sch Space Sci, Yongin 446701, Gyeonggi Do, South Korea
4.Slovak Acad Sci, Inst Expt Phys, Kosice 04001, Slovakia
5.Korea Astron & Space Sci Inst, Taejon 305348, South Korea
6.Tel Aviv Univ, Golan Res Inst, Israel Space Agcy, Israel Cosm Ray & Space Weather Ctr Emilio Segre, IL-69978 Tel Aviv, Israel
7.Russian Acad Sci, Cosm Ray Dept, Troitsk 142190, Russia
Recommended Citation
GB/T 7714
Firoz, Kazi A.,Zhang, Q. M.,Gan, W. Q.,et al. AN INTERPRETATION OF GLE71 CONCURRENT CME-DRIVEN SHOCK WAVE[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2014,213(2):0.
APA Firoz, Kazi A..,Zhang, Q. M..,Gan, W. Q..,Li, Y. P..,Rodriguez-Pacheco, J..,...&Dorman, Lev I..(2014).AN INTERPRETATION OF GLE71 CONCURRENT CME-DRIVEN SHOCK WAVE.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,213(2),0.
MLA Firoz, Kazi A.,et al."AN INTERPRETATION OF GLE71 CONCURRENT CME-DRIVEN SHOCK WAVE".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 213.2(2014):0.
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