论文标题
GRB脉冲的贝叶斯时间分辨光谱：$α$ - 强度相关
Bayesian Time-Resolved Spectroscopy of GRB Pulses: $α$-Intensity Correlation
论文作者
论文摘要
伽马射线爆发（GRB）在光谱演变中显示出不同的行为和趋势。用于了解这些行为的物理起源的方法之一是研究光谱拟合参数之间的相关性。在这项工作中，我们使用了贝叶斯分析方法来适应\ textit {fermi}/gbm在任务的前9年中检测到的GRB脉冲的时间分辨光谱。我们研究了单个脉冲长突发（$ t_ {90} \ geq2 $ s）。在所有参数相关性中，我们发现低能幂律指数$α$与能量通量之间的相关性表现出系统性行为。我们介绍了这种行为的观察到特征的特性，并在光谱发射模型的背景下解释了它。
Gamma-ray bursts (GRBs) show different behaviours and trends in their spectral evolution. One of the methods used to understand the physical origin of these behaviours is to study correlation between the spectral fit parameters. In this work, we used a Bayesian analysis method to fit time-resolved spectra of GRB pulses that were detected by the \textit{Fermi}/GBM during its first 9 years of mission. We studied single pulsed long bursts ($T_{90}\geq2$ s). Among all the parameter correlations, we found that the correlation between the low-energy power-law index $α$ and the energy flux exhibited a systematic behaviour. We presented the properties of the observed characteristics of this behaviour and interpreted it in the context of the photospheric emission model.
