伽马射线暴余辉阶段的喷流动力学与辐射特征
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伽马射线暴,简称伽马暴,是一种来自宇宙空间,时间短且能量高的伽马射线爆发现象。一直以来,伽马暴的研究都处于天文学研究的前沿,是高能天体物理领域一大热点,与跨尺度的诸多天文现象和天体形成、演化等有着密切联系。真正揭开伽马暴神秘面纱始于余辉发现。余辉的发现确定了伽马暴的宇宙学起源,验证了火球相对论激波模型,建立了伽马暴的基本理论框架,特别是建立了余辉理论模型。之后,成功发射的雨燕卫星(Swift)收集到大量多波段余辉数据,使余辉理论模型得到了进一步发展和完善。本论文主要是在余辉理论模型的框架下,研究伽马暴的相关内容,包括暴周环境、喷流进动、早期光学余辉偏振和喷流引力波记忆效应。 第一章中,我们首...
Gamma-ray bursts (GRBs) are the short-lived, high-energy explosions with γ-ray emission in the Universe.The study of GRBs, which are closely related to many astronomical phenomena and the formation and evolution of celestial objects across different scales, has long been at the forefront of astronomical research and a hot topic in high-energy astrophysics. It was the discovery of afterglows that r...
Gamma-ray bursts (GRBs) are the short-lived, high-energy explosions with γ-ray emission in the Universe.The study of GRBs, which are closely related to many astronomical phenomena and the formation and evolution of celestial objects across different scales, has long been at the forefront of astronomical research and a hot topic in high-energy astrophysics. It was the discovery of afterglows that r...