摘要
假设介质的数密度随激波半径呈幂律分布:next∝R-K.基于统一动力学模型和柱形喷流模型,用数值计算方法系统计算了K=2(即星风环境下)的动力学量随时间的演化,并计算了光学余辉和射电余辉随时间的演化,得出了相关的规律.
Assuming that the density of medium is a power-law distribution of shock radius: next∝R^-K. Basing on the generic dynamical model proposed by Huang et al and the model of cylindrical jet established by Cheng, in the case of K= 2(i. e. stellar wind medium), we numerically calculate the evolution of dynamics with time in detail. Finally, we calculate the evolution of optical afterglows and radio afterglows with time, and summarizing the correlative laws of evolution.
出处
《湖南师范大学自然科学学报》
CAS
北大核心
2008年第2期59-63,共5页
Journal of Natural Science of Hunan Normal University
基金
湖南省教育厅科研基金资助项目(06C225)
关键词
柱形喷流
伽玛射线暴
激波
统一动力学模型
cylindrical jets
gamma-ray bursts(GRBs)
shock wave
generic dynamical model