The impact of turbulence on electron heating and acceleration near the neutral point of externally driven reconnecting current sheets in solar flares

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 太阳活动的多波段观测研究团组

	The impact of turbulence on electron heating and acceleration near the neutral point of externally driven reconnecting current sheets in solar flares
	Wu, Gui-Ping 1; Ji, Hai-Sheng2 ; Ning, Zong-Jun2
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2012-12-01
卷号	12 期号:12 页码:1701-1713
关键词	turbulence scattering Sun: X-rays, gamma rays acceleration of particles
英文摘要	We aim to investigate the influence of plasma instability on electron acceleration and heating near the neutral point of a turbulent reconnecting current sheet (RCS). Through numerically solving the one dimensional relativistic Vlasov equation with typical solar coronal parameters and a realistic mass ratio in the presence of a strong inductive electric field E-0, we suggest that the wave-particle scattering may produce a flat electron flux spectrum from thermal to nonthermal electrons without a sudden low-energy cutoff in the acceleration region. The ratio between electron heating and acceleration decreases with the increase of the induced electric field. It is about one for E-0 = 1 V cm(-1) and one fourth for E-0 = 10 V cm(-1). The unstable waves excited by the beam plasma instability first accelerate the electrons, then trap these electrons from further acceleration by an induced electric field through wave-particle resonant interactions.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	X-RAY-BURSTS ; ION-ACOUSTIC RESISTIVITY ; LOW-ENERGY CUTOFFS ; MAGNETIC RECONNECTION ; PARTICLE-ACCELERATION ; ANOMALOUS RESISTIVITY ; NONTHERMAL ELECTRONS ; 2-RIBBON FLARES ; DRIFT VELOCITY ; FIELD
收录类别	SCI
语种	英语
WOS记录号	WOS:000313011000012
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/15597]
专题	紫金山天文台_太阳活动的多波段观测研究团组
作者单位	1.Southeast Univ, Dept Phys, Nanjing 210096, Jiangsu, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wu, Gui-Ping,Ji, Hai-Sheng,Ning, Zong-Jun. The impact of turbulence on electron heating and acceleration near the neutral point of externally driven reconnecting current sheets in solar flares[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2012,12(12):1701-1713.
APA	Wu, Gui-Ping,Ji, Hai-Sheng,&Ning, Zong-Jun.(2012).The impact of turbulence on electron heating and acceleration near the neutral point of externally driven reconnecting current sheets in solar flares.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,12(12),1701-1713.
MLA	Wu, Gui-Ping,et al."The impact of turbulence on electron heating and acceleration near the neutral point of externally driven reconnecting current sheets in solar flares".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 12.12(2012):1701-1713.