arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1201.3689astro-ph.HEhep-ph
收藏

在GRB 980923中观测到的作为Gamma Ray余辉来源的SSC发射

SSC Emission as the Origin of the Gamma Ray Afterglow Observed in GRB 980923

Nissim Fraija, M. Magdalena Gonzalez, Willian H. Lee

摘要:

GRB 980923是由爆发和瞬态源实验(BATSE)观测到的最明亮的爆发之一。以前的研究已经检测到两个不同的组件,除了主要的提示情节,这是很好地描述了乐队功能。其中第一个是一个尾巴的持续时间约。400秒,而第二个是一个高能量成分持续约。2先令我们总结的意见,并认为一个统一的模型,其中的尾巴可以被理解为早期的伽马射线余辉从正向冲击同步辐射,而高能量的组成部分来自同步自Comtpon(SSC)从反向冲击。厚壳发射的主要假设之间的一致性和协议的观测值和计算值之间的通量,破碎能量,开始时间和光谱指数导致的要求,喷出物高度磁化。

英文摘要:

GRB 980923 was one of the brightest bursts observed by the Burst and Transient Source Experiment (BATSE). Previous studies have detected two distinct components in addition to the main prompt episode, which is well described by a Band function. The first of these is a tail with a duration of approx. 400s, while the second is a high-energy component lasting approx. 2s. We summarize the observations, and argue for a unified model in which the tail can be understood as the early gamma-ray afterglow from forward shock synchrotron emission, while the high-energy component arises from synchrotron self-Comtpon (SSC) from the reverse shock. Consistency between the main assumption of thick shell emission and agreement between the observed and computed values for fluxes, break energies, starting times and spectral indices leads to a requirement that the ejecta be highly magnetized.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑