What extremely rare stellar death process results in no central remnant left behind?
Answer
Pair-instability supernova
In the extremely rare case of the most massive stars, potentially those exceeding 150 solar masses, a specific type of violent death known as a pair-instability supernova can occur. This explosive event is so energetic and completely disruptive that it results in the entire star being dispersed into the interstellar medium. Unlike standard core-collapse supernovae, which leave behind either a neutron star or a black hole remnant, the pair-instability supernova completely disperses all stellar material, leaving absolutely no compact corpse—no white dwarf, no neutron star, and no black hole—behind in the aftermath.
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