This burst was 70 times brighter than anything ever detected and spanned 15 wavelengths of the electromagnetic spectrum, from radio to gamma rays.
The most likely mechanism for the explosion was the birth of a black hole. The death of a supermassive star resulted in a supernova, leaving behind a singularity that formed a pair of narrow jets of particles in opposite directions at near the speed of light and consumed the surrounding matter. Shock waves from these jets produce gamma radiation.
Source: Ferra

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