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Signs of second-largest black hole in the Milky Way

17 January 2016 Astronomy Now

A team of astronomers has found an enigmatic gas cloud, called CO-0.40-0.22, only 200 light-years away from the centre of the Milky Way. The cloud contains gas with a very wide range of speeds. The so-called velocity dispersion is best explained by the gravitational attraction of an intermediate mass black hole. If that is the case, then this is the first detection of such a body.