Analysis of the CME-driven shock from the SEP event that occurred on 2006 December 14  

作　　者：Xin Wang Yi-Hua Yan 

机构地区：[1]Key Laboratory of Solar Activities,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China [2]State Key Laboratory of Space Weather,Chinese Academy of Sciences,Beijing 100080,China

出　　处：《Research in Astronomy and Astrophysics》2012年第11期1535-1548,共14页天文和天体物理学研究（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10921303);the National Basic Research Program of the Ministry of Science and Technology (MOST Grant No. 2011CB 811401)

摘　　要：In a solar flare or coronal mass ejection （CME）, observations of the subse- quent interplanetary shock provide us with strong evidence of particle acceleration to energies of multiple MeV, even up to GeV. Diffusive shock acceleration is an efficient mechanism for particle acceleration. For investigating the shock structure, the energy injection and energy spectrum ofa CME-driven shock, we perform a dynamical Monte Carlo simulation of the CME-driven shock that occurred on 2006 December 14 using an anisotropic scattering law. The simulated results of the shock＇s fine structure, par- ticle injection, and energy spectrum are presented. We find that our simulation results give a good fit to the observations from multiple spacecraft.In a solar flare or coronal mass ejection （CME）, observations of the subse- quent interplanetary shock provide us with strong evidence of particle acceleration to energies of multiple MeV, even up to GeV. Diffusive shock acceleration is an efficient mechanism for particle acceleration. For investigating the shock structure, the energy injection and energy spectrum ofa CME-driven shock, we perform a dynamical Monte Carlo simulation of the CME-driven shock that occurred on 2006 December 14 using an anisotropic scattering law. The simulated results of the shock＇s fine structure, par- ticle injection, and energy spectrum are presented. We find that our simulation results give a good fit to the observations from multiple spacecraft.

关 键 词：acceleration of particles -- shock waves -- Sun： coronal mass ejections（CMEs） -- solar wind -- methods： numerical 

分 类 号：P182.62[天文地球—天文学] TN873[电子电信—信息与通信工程]