标题： 典型伽马射线暴能谱Band函数的同步辐射起源——以GRB 130606B为例 显示英文标题

标题： Synchrotron Origin of the Typical GRB Band Function - A Case Study of GRB 130606B

摘要： 我们基于Uhm & Zhang提出的快速冷却同步辐射模型（该模型假设发射区的磁场强度随时间衰减）对GRB 130606B进行了时变能谱分析。 模型能够成功拟合所有时间间隔的数据。 同样地，这些数据也能被经验性的Band函数以典型的参数值很好地拟合。 我们的研究结果仅涉及最少的物理假设，为观测到的伽马射线暴（GRB）能谱起源提供了一种自然的解释，并表明至少有一些（如果不是全部）具有典型Band参数值的Band型GRB能谱确实可以用同步辐射来解释。 显示英文摘要

摘要： We perform a time-resolved spectral analysis of GRB 130606B within the framework of a fast-cooling synchrotron radiation model with magnetic field strength in the emission region decaying with time, as proposed by Uhm & Zhang. The data from all time intervals can be successfully fit by the model. The same data can be equally well fit by the empirical Band function with typical parameter values. Our results, which involve only minimal physical assumptions, offer one natural solution to the origin of the observed GRB spectra and imply that, at least some, if not all, Band-like GRB spectra with typical Band parameter values can indeed be explained by synchrotron radiation.