伽马射线暴角分布的新统计结果
New Statistical Results on the Angular Distribution of Gamma-Ray Bursts
摘要：
本文给出了BATSE星表中伽马射线暴角天空分布随机性的几种统计检验结果。利用Voronoi图、最小生成树和多重分形谱分别对短1、短2、中、长1、长2等5类伽马射线暴进行了13种不同的检验。long1和long2类随机分布。中间子类，根据作者的早期结果，是非随机分布的。关于短子类，早期的统计检验也表明与随机分布有一定的偏离，但置信度不够高。本文中提出的新测试也表明了非随机性。
英文摘要：
We presented the results of several statistical tests of the randomness in the angular sky-distribution of gamma-ray bursts in BATSE Catalog. Thirteen different tests were presented based on Voronoi tesselation, Minimal spanning tree and Multifractal spectrum for five classes (short1, short2, intermediate, long1, long2) of gamma-ray bursts, separately. The long1 and long2 classes are distributed randomly. The intermediate subclass, in accordance with the earlier results of the authors, is distributed non-randomly. Concerning the short subclass earlier statistical tests also suggested some departure from the random distribution, but not on a high enough confidence level. The new tests presented in this article suggest also non-randomness here.
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