首页> 外文会议>Gamma-Ray Burst Symposium >High-Energy Cosmic Rays from Galactic and Extragalactic Gamma-Ray Bursts
【24h】

High-Energy Cosmic Rays from Galactic and Extragalactic Gamma-Ray Bursts

机译:来自银河系和紫外伽马射线爆发的高能量宇宙射线

获取原文

摘要

A model for high energy (≥ 1014 eV) cosmic rays (HECRs) from galactic and extra-galactic gamma-ray bursts is summarized. Relativistic outflows in gamma-ray bursts (GRBs) are assumed to inject power-law distributions of CR protons and ions to the highest (≥ 1020 eV) energies. A diffusive propagation model for HECRs from a single recent GRB within ≈ 1 kpc from Earth explains the CR spectrum near and above the knee. The CR spectrum at energies above ~ 1018 eV is fit with a component from extragalactic GRBs. By normalizing the energy injection rate to that required to produce the CR flux from extragalctic sources observed locally, we determine the amount of energy a typical GRB must release in the form of nonthermal hadrons. Our interpretation of the HECR spectrum requires that GRBs are hadronically dominated, which would be confirmed by the detection of HE neutrinos from GRBs.
机译:总结了来自银河系和超银胶射线爆发的高能量(≥1014eV)宇宙射线(HECR)的模型。假设γ射线突发(GRB)中的相对论外流将Cr质子和离子的功率律分布注入最高(≥1020eV)能量。来自地球中≈1kpc内的单个近期Gr的Hecrs的扩散繁殖模型解释了膝盖附近和上方的Cr光谱。高于〜1018eV的CR光谱适用于来自丙型薄网的组分。通过将能量注入速率归一化为从本地观察到的紫外源产生CR通量所需的能量注入速率,确定典型GRB必须以非热强度的形式释放的能量。我们对HECR频谱的解释要求GRBS占据主导地位,这将通过从GRBS的中微子检测来证实。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号