Elusive medium-sized black holes can form in dense ‘nurses’
The researchers found that elusive intermediate-mass black holes can form in dense star clusters containing anywhere from tens of thousands to millions of tightly packed stars, called “globular clusters.” An intermediate-mass black hole has a mass between 100 and 10,000 suns. They are heavier than solar-mass black holes, which have a mass range between 10 … Read more