Balazs 2007 长短暴的物理区别 2

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astro-ph/0702152 [abs, ps, pdf, other] :

Title: Physical Difference between the short and long GRBs
Authors: L. G. Balazs, Z. Bagoly, I. Horvath, A. Meszaros, P. Meszaros
Comments: 2 figures
Journal-ref: Baltic Astron. 12 (2004) 207-210

We provided separate bivariate log-normal distribution fits to the BATSE short and long burst samples using the durations and fluences. We show that these fits present an evidence for a power-law dependence between the fluence and the duration, with a statistically significant different index for the long and short groups. We argue that the effect is probably real, and the two subgroups are different physical phenomena. This may provide a potentially useful constraint for models of long and short bursts.