What happens to a star that captures a primordial black hole?

We don't know whether theorized primordial black holes (PBH) are real. If they are, they formed in the very early universe, when physics was much different. They had no stellar progenitors and were created by the direct collapse of densely packed subatomic matter. Theorists have wondered whether PBH could be dark matter, or a component of dark matter.

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