论文标题
超新星残留物中的非热过程和粒子加速
Nonthermal processes and particle acceleration in supernova remnants
论文作者
论文摘要
超新星残留物（SNRS）的冲击通过扩散冲击加速度（DSA）机制加速了100 TEV范围的带电颗粒。据信，SNR的冲击是银河宇宙射线池的主要贡献者，尽管它仍在争论中是否可以加速颗粒到“膝盖”能量（10^15.5 eV）。在本章中，我们首先引入SNR作为宇宙射线的可能来源以及与宇宙射线相关的辐射机制（第3节）。在第4节中，我们总结了颗粒加速度的机制，包括基本的扩散冲击加速度和非线性效应，并讨论了注射问题。第5节致力于SNR的非热发射的X射线和伽马射线观察，以及这些揭示了SNR的宇宙射线加速度性能。
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.
