A Remarkable Angular Distribution of the Intermediate Subclass of Gamma-Ray Bursts

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dc.creatorMeszaros, A.
dc.creatorBagoly, Z.
dc.creatorHorvath, I.
dc.creatorBalazs, L. G.
dc.creatorVavrek, R.
dc.date2000-03-20
dc.date2000-05-09
dc.date.accessioned2026-07-07T06:27:14Z
dc.date.available2026-07-07T06:27:14Z
dc.descriptionIn the article a test is developed, which allows to test the null-hypothesis of the intrinsic randomness in the angular distribution of gamma-ray bursts collected at the Current BATSE Catalog. The method is a modified version of the well-known counts-in-cells test, and fully eliminates the non-uniform sky-exposure function of BATSE instrument. Applying this method to the case of all gamma-ray bursts no intrinsic non-randomness is found. The test also did not find intrinsic non-randomnesses for the short and long gamma-ray bursts, respectively. On the other hand, using the method to the new intermediate subclass of gamma-ray bursts, the null-hypothesis of the intrinsic randomness for 181 intermediate gamma-ray bursts is rejected on the 96.4% confidence level. Taking 92 dimmer bursts from this subclass itself, we obtain the surprising result: This "dim" subclass of the intermediate subclass has an intrinsic non-randomness on the 99.3% confidence level. On the other hand, the 89 "bright" bursts show no intrinsic non-randomness.
dc.description14 pages, 2 figures, Accepted for publication in Astrophysical Journal, typo changes
dc.identifierhttps://arxiv.org/abs/astro-ph/0003284
dc.identifierhttp://arxiv.org/abs/astro-ph/0003284
dc.identifierAstrophys.J. 539 (2000) 98
dc.identifierdoi:10.1086/309193
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97354
dc.subjectAstrophysics
dc.titleA Remarkable Angular Distribution of the Intermediate Subclass of Gamma-Ray Bursts
dc.typetext

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