Nonthermal processes and particle acceleration in supernova remnants
arXiv:2211.07417 · doi:10.1007/978-981-16-4544-0_90-1
Abstract
Shocks of supernova remnants (SNRs) accelerate charged particles up to 100 TeV range via diffusive shock acceleration (DSA) mechanism. It is believed that shocks of SNRs are the main contributors to the pool of Galactic cosmic rays, although it is still under debate whether they can accelerate particles up to the "knee" energy (10^15.5 eV) or not. In this chapter, we start with introducing SNRs as likely sources of cosmic rays and the radiation mechanisms associated with cosmic rays (section 3). In the section 4, we summarize the mechanism for particle acceleration, including basic diffusive shock acceleration and nonlinear effects, as well as discussing the injection problem. Section 5 is devoted to the X-ray and gamma-ray observations of nonthermal emission from SNRs, and what these reveal about the cosmic-ray acceleration properties of SNRs.
arXiv commentInvited chapter for Handbook of X-ray and Gamma-ray Astrophysics (Section Eds. Manami Sasaki, Aya Bamba, Keiichi Maeda; Eds. C. Bambi and A. Santangelo, Springer Singapore, expected in 2023)
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