AN INTERPRETATION OF GLE71 CONCURRENT CME-DRIVEN SHOCK WAVE

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 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
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2014-08-01
卷号	213 期号:2 页码:0
关键词	Sun: corona Sun: coronal mass ejections (CMEs) Sun: evolution Sun: flares Sun: heliosphere Sun: particle emission
ISSN号	0067-0049
英文摘要	Particle 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.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	GROUND-LEVEL ENHANCEMENT ; CORONAL MASS EJECTIONS ; SOLAR ENERGETIC PARTICLES ; III RADIO-BURSTS ; WIND SPACECRAFT ; INTERPLANETARY SPACE ; POSSIBLE MECHANISMS ; EVENTS ; FLARE ; ORIGIN
收录类别	SCI
原文出处	10.1088/0067-0049/213/2/24
语种	英语
WOS记录号	WOS:000341777400006
公开日期	2014-11-20
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/10625]
专题	紫金山天文台_太阳高能及相关物理过程研究团组
作者单位	1.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
推荐引用方式 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.