This paper considers the hypothesis that dark matter is primordial black holes (PHB). If this were so there would have to be a lot of them, so some would likel

This paper considers the hypothesis that dark matter is primordial black holes (PHB). If this were so there would have to be a lot of them, so some would likely be captured by stars or star-forming dust clouds. This in turn should have an observable effect on stellar evoluion.