The spatial distribution of GRBs

The spatial distribution of GRBs

Blog Article

We analysed the different aspects of the spatial distribution of 542 Gamma-Ray Bursts with precisely determined positions and spectroscopic redshifts.The data were divided according to the origin of the redshift (afterglow or host galaxy).The yearly rate of afterglow and host-based redshift observations are different, with only a few host observations in the recent years.

Since the launch of the Swift, the rate of afterglow observations 2009 buick lucerne catalytic converter fall exponentially by 50 % in 15 years, potentially affecting all planned GRB missions.We also analysed the rest-frame T90 values from the Swift BAT and FERMI GBM catalogues with the redshift data.The host- and afterglow-based points are separated in the redshift range due to observational effects, but no tzora battery direct distinction could be made between the rest-frame T90 values.

The correlation analysis between the GRB redshift and sky position shows that the GRB distribution could be factorised into a separate sky and radial components.