Balazs 2009 伽玛暴的天区分布统计

主要内容:
中间类不是随机分布的(不过确定度不高).

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Title:		New Statistical Results on the Angular Distribution of Gamma-Ray Bursts
Authors:		Balazs, L. G.; Horvath, I.; Vavrek, R.; Bagoly, Z.; Meszaros, A.
Publication:		eprint arXiv:0902.4812
Publication Date:		02/2009
Origin:		ARXIV
Keywords:		Astrophysics - Cosmology and Extragalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Comment:		in GAMMA-RAY BURSTS 2007: Proceedings of the Santa Fe Conference
Bibliographic Code:		2009arXiv0902.4812B

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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