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Energy spectral property in an isolated CME-driven shock
Wang, Xin1,2,3,4; Yan, Yi-Hua2; Ding, Ming-De3; Wang, Na1,4; Shan, Hao1,4
2016-02-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
Volume16Issue:2
AbstractObservations from multiple spacecraft show that there are energy spectral "breaks" at 1-10 MeV in some large CME-driven shocks. However, numerical models can hardly simulate this property due to high computational expense. The present paper focuses on analyzing these energy spectral "breaks" by Monte Carlo particle simulations of an isolated CME-driven shock. Taking the 2006 Dec 14 CME-driven shock as an example, we investigate the formation of this energy spectral property. For this purpose, we apply different values for the scattering time in our isolated shock model to obtain the highest energy "tails," which can potentially exceed the "break" energy range. However, we have not found the highest energy "tails" beyond the "break" energy range, but instead find that the highest energy "tails" reach saturation near the range of energy at 5 MeV. So, we believe that there exists an energy spectral "cut off" in an isolated shock. If there is no interaction with another shock, there would not be formation of the energy spectral "break" property.
KeywordAcceleration Of Particles Shock Waves Sun: Coronal Mass Ejections (Cmes) Solar Wind Methods: Numerical
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/1674-4527/16/2/032
WOS KeywordCOSMIC-RAY ACCELERATION ; PARTICLE-ACCELERATION ; NONTHERMAL ELECTRONS ; COLLISIONLESS SHOCKS ; HYBRID SIMULATIONS ; SUPERNOVA-REMNANTS ; ION-ACCELERATION ; SOLAR-FLARE ; WAVES ; INJECTION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000369252500012
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16126
Collection空间目标与碎片观测研究基地
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
3.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China
4.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xin,Yan, Yi-Hua,Ding, Ming-De,et al. Energy spectral property in an isolated CME-driven shock[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(2).
APA Wang, Xin,Yan, Yi-Hua,Ding, Ming-De,Wang, Na,&Shan, Hao.(2016).Energy spectral property in an isolated CME-driven shock.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(2).
MLA Wang, Xin,et al."Energy spectral property in an isolated CME-driven shock".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.2(2016).
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