Distribution of faint gamma-ray bursts as observed by Integral

This plot shows the distribution of faint gamma-ray bursts (GRBs), as observed by the IBIS imaging telescope on board ESA’s Integral gamma-ray observatory, in ‘supergalactic coordinates’ (such coordinate system is a spherical system whose equator is aligned with the so-called supergalactic plane, a major structure in the local universe formed by the distribution of near-by clusters of galaxies, out to several hundred megaparsecs; 1 megaparsec corresponds to about 3.26 million light years).

As it can be seen, these faint gamma-ray bursts are mainly distributed along the supergalactic plane.