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Another Large Black Hole In 'Our' Galaxy
RockDoctor (Slashdot reader #15,477) writes: A recent paper on ArXiv reports a novel idea about the central regions of "our" galaxy. Remember the hoopla a few years ago about radio-astronomical observations producing an "image" of our central black hole — or rather, an image of the accreti...
RockDoctor(Slashdot reader #15,477) writes: A recent paper on ArXiv reports a novel idea about the central regions of "our" galaxy. By various modelling approaches, they then refine this idea to a "best-fit" of a black hole with mass around 1000 times the Sun, orbiting between the distance of the closest-observed star to SGR-A* ("S2" — most imaginative name, ever! Within 25 parsecs (~80 light years, the distance to Regulus [in the constellation Leo] or Merak [in the Great Bear]) there is around 4 times more mass in several millions of "normal" stars than in the SGR-A* black hole.
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