When a giant star dies in a supernova explosion a stellar core is left. If the stellar core has a mass ranging from 1.4 to 3 solar mass, it collapses, as gravity is so strong that electrons and protons combine to form neutrons giving birth to a neutron star. It does not collapse further because of Neutron degeneracy pressure.
0:00 Pulsars Size Comparison
2:17 What are Neutron Stars?
3:42 Difference between Pulsar, Millipulsar, and Magnetar
4:53 Kilonova
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