In nuclear astrophysics, the rapid neutron-capture process, also known as the r-process, is a set of nuclear reactions that is responsible for the creation...

newer research has proposed a promising alternative (see the r-process below). The r-process isotopes are approximately 100,000 times less abundant than...

An endothermic process is a chemical or physical process that absorbs heat from its surroundings. In terms of thermodynamics and thermochemistry, it is...

neutrons, the s-process, produces about half of elements beyond iron. The other half are produced by rapid neutron capture, the r-process, which probably...

the s-process reaction chain eventually terminates at a cycle involving lead, bismuth, and polonium. The s-process contrasts with the r-process, in which...

the r-process (rapid neutron capture) in supernovae and neutron star mergers. Primordial thorium and uranium are only produced in the r-process, because...

Process philosophy, also ontology of becoming, or processism, is an approach in philosophy that identifies processes, changes, or shifting relationships...

stellar winds and explosions. The neutron capture reactions of the r-process and s-process create heavier elements, from iron upwards. Supernova nucleosynthesis...

Clayton calculated the first time-dependent models of the s-process in 1961 and of the r-process in 1965, as well as of the burning of silicon into the abundant...

stability past 209Bi, the r-process is the only process of stellar nucleosynthesis that can create thorium and uranium; all other processes are too slow and the...