Statistics of the Planck CMB signal in direction of gamma-ray bursts from the BATSE and BeppoSAX catalogs

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 "an average population GRB" on the CMB map. A correlation between GRB locations and CMB fluctuations was discovered which can be interpreted as systematic effects in the process of observations. Besides, in averaged areas of CMB maps a difference between distributions of average fluctuations for short and long GRBs was detected, which can be caused by different natures of these events.

25 pages, 18 figures, 1 table, Astrophysical Bulletin, 2014, No 69, Vol.4

References in corpus (6)

• Extragalactic Radio Sources and the WMAP Cold Spot
• Correlating anomalies of the microwave sky: The Good, the Evil and the Axis
• On the large-scale angular distribution of short-Gamma ray bursts
• Can residuals of the Solar system foreground explain low multipole anomalies of the CMB ?
• GRB Sky Distribution Puzzles
• Correlation of supernova redshifts with temperature fluctuations of the Cosmic Microwave Background