How is a kilonova distinct from a supernova event regarding its origin?
A kilonova results specifically from the merger of two neutron stars.
A kilonova represents a distinct category of powerful cosmic event separate from the death of a single star via supernova. While both phenomena disperse heavy elements, the origin mechanism is the key differentiator. A supernova results from the explosive demise of a star (either white dwarf or massive star), whereas a kilonova is specifically generated by the violent merger of two compact stellar remnants, typically two neutron stars, or potentially a neutron star and a black hole. This merger process involves immense tidal forces and rapid neutron capture, leading to the creation of extremely heavy elements like gold and platinum, which are then ejected in a bright, albeit typically less luminous than a true supernova, transient event.
