Light Curves of Gamma-Ray Burst Optical Flashes
Light Curves of Gamma-Ray Burst Optical Flashes
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DOI：
10.1086/317869
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发表时间：
2000-09
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影响因子：
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通讯作者：
S. Kobayashi
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文献类型：
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作者：
S. Kobayashi
伽马射线暴（GRB）余辉的标准模型假设相对论性膨胀的物质由于与周围介质的相互作用而减速。前向激波的同步加速器辐射很好地描述了余辉，而与 GRB 990123 相关的强烈闪光则可归因于反向激波的发射。我们对反向激波发射进行了详细的研究。完整的光变曲线是针对长伽马射线暴和短伽马射线暴情况进行计算的。我们讨论了 ROTSE 对 GRB 981121 和 GRB 981223 缺乏即时光学检测的问题。
The standard model of gamma-ray burst (GRB) afterglows assumes that relativistically expanding material is decelerating as a result of interaction with the surrounding medium. The afterglows are well described by the synchrotron radiation from a forward shock, while the strong optical flash associated with GRB 990123 can be attributed to the emission from a reverse shock. We give a detailed study on the reverse shock emission. The full light curves are calculated for long and short GRB cases. We discuss the lack of the prompt optical detections by ROTSE for GRB 981121 and GRB 981223.