From Ligo, there were not enough fuses of neutron neutron neutron neutron to give an account of our heavy elements. With a surprise from JWST, maybe they can.
Where do the heaviest elements of the universe come from? If you were as most astrophysicists during the twentieth century, you may have said in supernova explosions: star cataclysms that occur within the nuclei of mass stars or stellar corpses (white dwarfs) that are subjected to destructive and liberating events of energy that trigger quick succession of nuclear fusion reactions. Unfortunately, an exhaustive study of these kinds of events, including type II supernovae (core collapse) and IA type (explosion of white dwarfs), showed that, although they produce large sets of fusion reactions, in reality they only produce elements up to About El Circonio (element #40) in the periodic table.
Beyond that, or for more than half of the known elements that exist, A different set of processes They are necessary. While the slow process of neutron capture (s-Crocerated) can occur within the evolved stars, in the form of a sun, which explain great fractions of certain elements, such as niobium, tin, barium and lead, most heavy elements require another process to explain His abundances observed.
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