γ射线爆的新观测结果与爆源集束辐射中洛仑兹因子

NEW OBSERVATIONAL RESULTS OF GAMMA-RAYBURSTS AND LORENTZ FACTORS IN SOURCE BEAMING GMISSION

在简述γ射线爆的新观测结果基础上，讨论了爆源的集束辐射。计算了集束辐射中，光子非均匀分布情况下，双光子的正负电子对产生的光学厚度，得到了能谱指数和洛仑兹因子之间的关系。

Based on the new observational results of gamma-ray bursts, source beaming emission is discussed,The optical depth of pair production of two photons is calculated in the case of photon non- uniform distributions in beaming emission. The relation between spectral index and Lorentz factor is obtained.