脉冲星参数的取值对γ暴火球余辉的影响

The Effects of the Pulsar Parameter on Gamma-ray Burst Afterglows

用中心有脉冲星的γ射线暴的火球模型计算出GRB970228和GRB000301c两个γ射线暴的余辉辐射流,计算结果与观测结果相比较,符合的很好。解释了GRB970228和GRB000301c光学R波段余辉的光变曲线带‘拐折’的特征,讨论了中心脉冲星参数的取值对余辉的光曲线起的重要作用。

The radiation flux of two gamma-ray bursts (GRB970228 and GRB000301) afterglows has been studied using the fireball model with a millisecond pulsar at the center, which turns out to be well consistent with the observation data. Our study also explains the break of the optical R-band of the light curve of these afterglows, and shows the pulsar parameters have significant effects on the light curve of the afterglows.