Question

what is Hawking radiation

Answer 1

Hawking radiation, also known as Hawking–Bekenstein radiation, or Hawking–Zel'dovich radiation, is blackbody radiation that is predicted to be released by black holes, due to quantum effects near the event horizon

Answer 2

 Hawking–Zel'dovich radiation is blackbody radiationthat is predicted to be released by black holes, due to quantum effects near the event horizon. It is named after the physicist Stephen Hawking, who provided a theoretical argument for its existence in 1974, and Jacob Bekenstein, who predicted that black holes should have a finite entropy.