Gamma-ray bursts are some of the most extreme events in the universe, producing vast jets of powerful radiation that can be detected billions of light-years from their source.
Gamma-ray bursts are extremely energetic and rare events, considered to be the brightest, or most luminous, explosions in the universe.
This initial burst is then typically followed by a longer-lasting emission of longer wavelength radiation, including X-rays, ultraviolet light, visible light and radio waves. An international team of scientists has now created a catalog containing 186 of the highest-energy GRBs detected by Fermi—published in"Each burst is in some way unique," Magnus Axelsson, an astrophysicist at Stockholm University in Sweden and an author of the study, said in a statement."It's only when we can study large samples, as in this catalog, that we begin to understand the common features of GRBs. These, in turn, give us clues to the physical mechanisms at work.
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