ChJAA Vol 2, No 4 (2002) / Liang

A Restriction on the Duration and Peak Energy of Gamma-Ray Bursts  

En-Wei Liang, Yi-Ping Qin, Yun-Ming Dong, Guang-Zhong Xie


Two dimensional distributions of T90 versus Epeak (or Ebreak) for three bright GRB samples have been investigated. The result shows that although both T90 and Epeak (or Ebreak) each span over a wide range, they are restricted to the region  log (T90) ≤ – log (Epeak)+5.24. This cannot be explained by the current fireball model. It may represent a constraint on the fireball model.


gamma rays: bursts

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