The International Workshop on
Quark Phase Transition in Compact Objects and Multimessenger Astronomy:
Neutrino Signals, Supernovae and Gamma-Ray Bursts

7-14 October 2015

Correlation between sphere distributions of gamma-ray bursts and CMB fluctuations Verkhodanov O.V., Sokolov V.V., Khabibullina M.L.

Abstract

      Distribution of gamma-ray bursts (GRBs) from catalogs of the BATSE and BeppoSAX space observatories relative to the cosmic microwave background (CMB) data by Planck space mission is studied. Three methods were applied for data analysis: (1) a histogram of CMB signal values in GRB directions, (2) mosaic correlation maps calculated for GRB locations and CMB distribution, (3) calculation of an average response in the area of "average GRB population" on the CMB map. A correlation between GRB locations and CMB fluctuations was detected which can be interpreted as systematic effects in the process of observations. Besides, in the averaged areas of CMB maps, a difference between the distributions of average fluctuations for short and long GRBs was detected which can be caused by different natures of these events.

Reference:
Verkhodanov O.V., Sokolov V.V., Khabibullina M.L., "Correlation between sphere distributions of gamma-ray bursts and CMB fluctuations", in "Proceedings of the International Workshop on Quark Phase Transition in Compact Objects and Multimessenger Astronomy: Neutrino Signals, Supernovae and Gamma-Ray Bursts", Russia, Nizhnij Arkhyz (SAO RAS), Terskol (BNO INR RAS), October, 7 - 14, 2015, Publishing house "Sneg", Pyatigorsk, 2016, ISBN 978-5-903129-85-0, pp. 142-150.
DOI: 10.26119/SAO.2020.1.51274
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