Search for supergalactic anisotropies in the 3B catalog
- 1 January 1996
- proceedings article
- Published by AIP Publishing in AIP Conference Proceedings
- Vol. 384 (1) , 397-401
- https://doi.org/10.1063/1.51687
Abstract
The angular distribution of GRBs is isotropic, while the brightness distribution of bursts shows a reduced number of faint events. These observations favor a cosmological burst origin. If GRBs are indeed at cosmological distances and if they trace luminous matter, we must eventually find an anisotropic distribution of bright bursts. If a significant number of bursts originate at redshifts less than z∼0.1, the concentration of nearby galaxies towards the supergalactic plane is pronounced enough that we could discover the corresponding clustering of burst locations. We used the 3B catalog to search for a pattern visible in supergalactic coordinates. No compelling evidence for anisotropies was found. The absence of anisotropies in SG coordinates implies a minimum sampling distance of 200 h −1 Mpc .Keywords
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