XMM-Newton discovers a new class of black holes
1 Jul 2009, 18:00 UTC
Astronomers using ESA’s XMM-Newton X-ray observatory have discovered a black hole weighing more than 500 solar masses, a missing link between lighter stellar-mass and heavier supermassive black holes, in a distant galaxy. This discovery is the best detection to date of a new class that has long been searched for: intermediate mass black holes.
Note: All formatting and links have been removed - click title or image to see full article.
