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arXiv · 0902.4812

New Statistical Results on the Angular Distribution of Gamma-Ray Bursts

L. G. Balazs·I. Horvath·R. Vavrek·Z. Bagoly·A. Meszaros
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Abstract

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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L. G. Balazs, I. Horvath, R. Vavrek, Z. Bagoly, A. Meszaros. 2009-02-27. New Statistical Results on the Angular Distribution of Gamma-Ray Bursts. https://doi.org/10.1063/1.2943523

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