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Abstract: Existing theory and models suggest that a Type I merger GRB should have alarger jet beaming angle than a Type II collapsar GRB, but so far nostatistical evidence is available to support this suggestion. In this paper, weobtain a sample of 37 beaming angles and calculate the probability that this istrue. A correction is also devised to account for the scarcity of Type I GRBsin our sample. The probability is calculated to be 83% without the correctionand 71% with it.



Autor: Y. Gao, Z.G. Dai

Fuente: https://arxiv.org/







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