中心有脉冲星的︽暴970228火球模型  

The fireball-model of GRB 970228 with the center of a pulsar

作　　者：许云[1] 黄文涛[1] 杨丕博[1] 

机构地区：[1]华中师范大学物理系,武汉430079

出　　处：《华中师范大学学报（自然科学版）》2002年第4期432-435,共4页Journal of Central China Normal University：Natural Sciences

基　　金：国家自然科学基金项目资助(19778003).

摘　　要：重点讨论了中心有脉冲星的γ射线暴火球模型,假定在火球的中心有一强磁场的毫秒级脉冲星,改变以往文献中的能量转化方程,计算出GRB970228的辐射流,与观测结果符合的很好.自然解释了GRB970228余辉的光变曲线特征.This paper mainly discusses the fireball model with a millisecond pulsar at the center. It modifies the energy conservation equation provided by the previous literature, calculates the spectra of GRB970228. Which turns out to be well consistent with the observation data. It also explains the break character of the optical Rband of the light curve of GRB 970228, and shows the pulsar parameters have significant effects on the light curve of the afterglows.

关 键 词：γ暴970228火球模型 脉冲星 Γ射线暴 高能天体物理学 余辉辐射 能量转化方程 

分 类 号：P142.82[天文地球—天体物理]