ARE GAMMA-RAY BURSTS INDEED CORRELATED WITH ABELL CLUSTERS OF GALAXIES

Citation
J. Gorosabel et Aj. Castrotirado, ARE GAMMA-RAY BURSTS INDEED CORRELATED WITH ABELL CLUSTERS OF GALAXIES, The Astrophysical journal, 483(2), 1997, pp. 83-86
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
0004637X
Volume
483
Issue
2
Year of publication
1997
Part
2
Pages
83 - 86
Database
ISI
SICI code
0004-637X(1997)483:2<83:AGBICW>2.0.ZU;2-U
Abstract
We study the possible correlation of a selected sample of 87 gamma-ray bursts that can be localized to less than or equal to 6 deg(2) with 3 616 Abell clusters of galaxies (with \b\ > 30 degrees) for which we ha ve determined angular sizes. The intention is to confirm whether the b ursts are related to Abell clusters of galaxies, as has been claimed b y researchers who found a 95% confidence level correlation between Abe ll clusters and a subsample of 136 events from the BATSE 3B catalog. W e find no correlation between the positions of gamma-ray bursts and th ose of Abell clusters. In fact, the number of observed events toward A bell clusters is even smaller than that expected to occur at random.