Browsing: Kilonova

A kilonova is a cosmic phenomenon that occurs when two neutron stars or a neutron star and a black hole merge together, releasing a massive burst of energy. This event is typically less bright than a supernova but significantly brighter than a nova, hence the name “kilonova,” indicating it is approximately a thousand times more luminous than a typical nova. Kilonovae are notable for producing heavy elements like gold and platinum through rapid neutron capture, also known as the r-process. The 2017 observation of a kilonova following the gravitational wave event GW170817 provided the first direct evidence of these mergers as the origin of such heavy elements. The event also shed light on the mechanisms of short gamma-ray bursts, which are intense bursts of gamma rays lasting less than two seconds, often associated with these high-energy collisions.