Size of a blackhole6/6/2023 ![]() Theorists argue that a globular cluster should have a scaled down version of a galactic black hole. Globular clusters are dense collections of millions of stars, which reside within galaxies containing hundreds of billions of stars. That leaves black holes of intermediate mass, which were thought to be buried at the cores of globular clusters. The heftiest black holes are up to billions of times the mass of the sun and lie deep in the bellies of almost all galaxies. The least massive black holes known are about 10 times the mass of the sun and form when massive stars blow up in supernova explosions. The lead author is Stephen Zepf of Michigan State University, East Lansing.īlack holes are incredibly dense points of matter, whose gravity prevents even light from escaping. Stern is second author of a study detailing the findings in the Aug. “Some theories say that small black holes in globular clusters should sink down to the center and form a medium-sized one, but our discovery suggests this isn’t true,” said Daniel Stern of NASA’s Jet Propulsion Laboratory. ![]() And now, a team of astronomers has thoroughly examined a globular cluster called RZ2109 and determined that it cannot possess a medium black hole, leading researchers to believe that black holes don’t come in medium, or at most are very rare. Yet nobody has been able to find one conclusively. Astronomers have long suspected that the best place to find a medium-mass black hole would be at the core of a miniature galaxy-like object called a globular cluster. But do black holes also come in size medium? A new study suggests that, most likely, the answer is no. Other times they are petite with just a few times the sun’s mass. ![]() Black holes are sometimes huge – supermassive as they are called, billions of times the mass of our sun.
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