Hawking star

A Hawking star is a theoretical type of star, where the star's core contains a very small, substellar, primordial black hole, and is partially or completely powered by energy from matter accreting into the black hole, rather than stellar fusion. It is named for Stephen Hawking, who proposed the existence of primordial black holes.

The existence and frequency of Hawking stars would be a test for the existence of primordial black holes and their commonality, and test their candidacy as a form of dark matter.

These stars are theorized to exist in the contemporary universe, unlike a similar type of stars from the early universe, quasi-stars, where very large gas clouds directly collapse into black holes surrounded by star's envelope, also powered by black hole accretion. Unlike the primordial quasi-stars, Hawking stars would be the size of contemporary stars, whereas quasi-stars would be incredibly massive.