Attributes of GRB pulses: An improved Bayesian Blocks algorithm for binned data

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Jets And Bursts, Galactic Winds And Fountains, Statistical And Correlative Studies Of Properties, Gamma-Ray Sources, Gamma-Ray Bursts

Scientific paper

A procedure to estimate temporal locations, amplitudes, widths, rise and decay times of pulses occurring within a large sample of GRB light curves, using BATSE 64-ms concatenated data, is based on an improved version of Bayesian Blocks. It determines the maximum likelihood value of the number of blocks by marginalizing over all the other parameters (block locations and sizes). The blocks are then used to obtain objective, automatic estimates of pulse parameters, which can either be used to study pulse-attribute correlations or as the starting solution for iterative, nonlinear fits of parametric models. .

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