A new class of black holes
JUL 13, 2009
DOI: 10.1063/PT.5.023500
Wired.com : Only two sizes of black holes have ever been spotted: small and super-massive. Scientists have long speculated that an intermediate version must exist, but they’ve never been able to find one until now.Astrophysicists identified what appears to be the first-ever medium-sized black hole, with a mass at least 500 times that of our Sun. Researchers from the Centre d’Etude Spatiale des Rayonnements in France detected the middling hole in a galaxy about 290 million light-years from Earth.
© 2009 American Institute of Physics
