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, the Universe consisted mainly of hydrogen and a few helium atoms. These are the lightest elements in the periodic table.
GRBs can be subdivided into two categories: long bursts and short bursts. Long GRBs are associated with the deaths of massive and fast-rotating stars. According to this theory, the fast rotation beams material ejected during the collapse of a massive star into narrow jets that move at extremely fast speeds.The short bursts last only a few seconds. They are thought to be caused by the collision of two neutron stars – compact and dense"dead" stars.
For r-process to work, however, you need the right conditions: high density, high temperature, and a large number of available free neutrons. Gamma ray bursts happen to provide these necessary conditions. In fact, previous observations of other long GRBs indicated that there is no correlation between the brightness of the GRB and the size of the supernova explosion associated with it. The BOAT seems no exception.
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