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Monte Carlo simulations of a diffusive shock with multiple scattering angular distributions
Wang, X.; Yan, Y. H.; Wang, X (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Activ, Beijing 100012, Peoples R China.
Department空间科学部
Source PublicationASTRONOMY & ASTROPHYSICS
2011
Volume530Pages:A92
ISSN0004-6361
Language英语
KeywordAcceleration Of Particles Methods: Numerical Shock Waves
AbstractAims. We independently develop a simulation code following the previous dynamical Monte Carlo simulation of the diffusive shock acceleration under the isotropic scattering law during the scattering process, and the same results are obtained. Methods. Since the same results test the validity of the dynamical Monte Carlo method for simulating a collisionless shock, we extend the simulation toward including an anisotropic scattering law for further developing this dynamical Monte Carlo simulation. Under this extended anisotropic scattering law, a Gaussian distribution function is used to describe the variation of scattering angles in the particle's local frame. Results. As a result, we obtain a series of different shock structures and evolutions in terms of the standard deviation values of the given Gaussian scattering angular distributions. Conclusions. We find that the total energy spectral index increases as the standard deviation value of the scattering angular distribution increases, but the subshock's energy spectral index decreases as the standard deviation value of the scattering angular distribution increases.; Aims. We independently develop a simulation code following the previous dynamical Monte Carlo simulation of the diffusive shock acceleration under the isotropic scattering law during the scattering process, and the same results are obtained. Methods. Since the same results test the validity of the dynamical Monte Carlo method for simulating a collisionless shock, we extend the simulation toward including an anisotropic scattering law for further developing this dynamical Monte Carlo simulation. Under this extended anisotropic scattering law, a Gaussian distribution function is used to describe the variation of scattering angles in the particle's local frame. Results. As a result, we obtain a series of different shock structures and evolutions in terms of the standard deviation values of the given Gaussian scattering angular distributions. Conclusions. We find that the total energy spectral index increases as the standard deviation value of the scattering angular distribution increases, but the subshock's energy spectral index decreases as the standard deviation value of the scattering angular distribution increases.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3132
Collection空间科学部
Corresponding AuthorWang, X (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Activ, Beijing 100012, Peoples R China.
Recommended Citation
GB/T 7714
Wang, X.,Yan, Y. H.,Wang, X . Monte Carlo simulations of a diffusive shock with multiple scattering angular distributions[J]. ASTRONOMY & ASTROPHYSICS,2011,530:A92.
APA Wang, X.,Yan, Y. H.,&Wang, X .(2011).Monte Carlo simulations of a diffusive shock with multiple scattering angular distributions.ASTRONOMY & ASTROPHYSICS,530,A92.
MLA Wang, X.,et al."Monte Carlo simulations of a diffusive shock with multiple scattering angular distributions".ASTRONOMY & ASTROPHYSICS 530(2011):A92.
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