摘要
GRB 080310的X射线耀发可能起源于中心引擎的再活动,那么,产生X射线耀发的喷流剩余动能必然在后期注入到外激波.本文研究这些注入的能量对外激波动力学及其辐射的影响.研究发现,在这样的图像下,GRB 080310早期光学余辉的观测数据能够得到很好的解释.同时,产生瞬时辐射的喷流与产生X射线耀发的喷流的辐射效率分别为17.7%和15.6%,这暗示这两种喷流可能具有相同的耗散机制.
TThe X-ray flares observed in GRB 080310 may be formed in the jet rather than in the blastwave shock. Then, the energy injection into the blastwave shock would appear after the observed time of these flares. In this paper, the effect of energy injection into the blastwave shock from the jets producing X-ray flares is studied. It is found that the early optical data in the afterglow phase can be explained. In addition, the radiation efficiencies of the jet producing prompt emission and that producing X-ray flares are estimated as 17.7% and 15.6%, respectively. This reveals that the dissipation mechanism of these jets may be the same.
出处
《玉林师范学院学报》
2017年第2期3-7,共5页
Journal of Yulin Normal University
基金
国家自然科学基金项目(11403005)
新世纪广西高等教育教学改革工程项目(2016JGA127)
教育部物理类专业教指委高等学校计算物理课程教学研究项目(JZW-14-JW-02)
关键词
伽玛射线暴
余辉
喷流
Gamma-ray burst （GRB）
afterglow
relativistic jet
