论文标题
明亮的Fermi-GBM短伽马射线爆发的全面研究：I。多脉冲灯曲面和多组分光谱
A Comprehensive Study of Bright Fermi-GBM Short Gamma-Ray Bursts: I. Multi-Pulse Lightcurves and Multi-Component Spectra
论文作者
论文摘要
由Fermi-Gamma Ray爆发监视器（GBM）检测到的短伽玛射线爆发（SGRB）的光子平移，选择了9个最亮的爆发以进行全面的分析。所有GRB灯曲面均通过1至3个脉冲很好地拟合，这些脉冲是由快速升高的指数衰减曲线（FRED）模拟的，其中所得的上升时间与半最大值（FWHM）的全日制宽度非常相关。涉及截止幂律函数和标准黑体功能（CPL + BB）的光子光谱模型可以在爆发阶段很好地重现这些SGRB的光谱能量分布。发现CPL的峰值能与BB的温度密切相关，这表明它们可能来自同一物理起源。讨论了可能的物理起源以说明这些相关性。
Sorted by the photon fluences of short Gamma-ray Bursts (SGRBs) detected by the Fermi- Gamma Ray Burst Monitor (GBM), nine brightest bursts are selected to perform a comprehensive analysis. All GRB lightcurves are fitted well by 1 to 3 pulses that are modelled by fast-rising exponential decay profile (FRED), within which the resultant rising time is strongly positive-correlated with the full time width at half maxima (FWHM). A photon spectral model involving a cutoff power-law function and a standard blackbody function (CPL + BB) could reproduce the spectral energy distributions of these SGRBs well in the bursting phase. The CPL's peak energy is found strongly positive-correlated with the BB's temperature, which indicates they might be from the same physical origin. Possible physical origins are discussed to account for these correlations.
