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GRB jet beaming angle statistics
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作者 yah gao zi-gao dai 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2010年第2期142-150,共9页
Existing theory and models suggest that a Type I (merger) GRB should have a larger jet beaming angle than a Type II (collapsar) GRB, but so far no statistical evidence is available to support this suggestion. In t... Existing theory and models suggest that a Type I (merger) GRB should have a larger jet beaming angle than a Type II (collapsar) GRB, but so far no statistical evidence is available to support this suggestion. In this paper, we obtain a sample of 37 beaming angles and calculate the probability that this is true. A correction is also devised to account for the scarcity of Type I GRBs in our sample. The probability is calculated to be 83% without the correction and 71% with it. 展开更多
关键词 gamma rays: bursts -- ISM: jets and outflows -- methods: statistical
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