How are elements created in a supernova?
1 Answer
Apr 2, 2017
Elements are created by neutron capture during a supernova explosion.
Explanation:
During a supernova explosion, vast numbers of high energy neutrons are ejected from the collapsing stellar core.
These neutrons are captured by nuclei of heavier elements to produce unstable neutron rich isotopes. These isotopes then decay by beta emission to produce the heavier elements up to uranium.
The neutron capture phase is called the r-process, where r stands for rapid. The synthesis of elements heavier than iron only occurs during the explosion which is why these elements are less abundant than the lighter elements which are produced by fusion reactions.
