ANALYSIS OF THE LOG-N LOG-P OF THE BATSE GAMMA-RAY BURSTS

The distribution of the sources of the Gamma-Ray Bursts (GRBs) recorde d by the CGRO experiment is uniform for all directions in the sky, whi le the behaviour of the log N-log P suggests a space distribution of t he events not homogeneous. The cosmological model can explain this res ult, but it cannot explain the presence of cyclotron lines in the burs t energy spectra that has been observed by many experiments: the sovie t KONUS experiment onboard VENERA probes, the Japanese GRBM experiment onboard GINGA satellite and, for only one candidate burst fortuitousl y observed, by the USA experiment A4 onboard HEAO1 satellite. In order to shed more light on this problem we present a new study of the log N-log P of the Gamma-Ray Bursts of the second BATSE catalogue.