Particle acceleration around SNR shocks

被引：2

作者：

Morlino, G. ^{[1
]}

机构：

[1] INAF Osservatorio Astrofis Arcetri, I-50125 Florence, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2013年 / 720卷

关键词：

Acceleration of particles; Shocks; Supernova remnants; Cosmic rays; COSMIC-RAYS;

D O I：

10.1016/j.nima.2012.12.032

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We review the basic features of particle acceleration theory around collisionless shocks in supernova remnants (SNRs). We show how non-linear effects induced by the back reaction of accelerated particles onto the shock dynamics are of paramount importance to support the hipotesys that SNRs are the factories of Galactic cosmic rays. Recent developments in the modeling of the mechanism of diffusive shock acceleration are discussed, with emphasis on the role of magnetic field amplification and the presence of neutrals in the circumstellar environment. Special attention will be devoted to observational consequences of non-linear effects on the multi-wavelength spectrum of SNRs, with emphasis on X-ray and gamma-ray emission. Finally we also discuss how Balmer lines, detected from several young SNRs, can be used to estimate the shock dynamical properties and the efficiency of CR acceleration. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：70 / 73

页数：4

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