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Thread: Sagittarius A* location and black holes

  1. #1
    Join Date
    Feb 2010
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    4

    Sagittarius A* location and black holes

    If we could calculate the exact centre of our galaxy, would Sagittarius A* be located there? If not then would this indicate that our galaxy was formed before the black hole? If so then could we surmise that our galaxy is actually rotating around the black hole at its centre?

  2. #2
    Join Date
    Jul 2005
    Location
    Massachusetts, USA
    Posts
    22,128
    I am not sure how you would calculate the exact center. Center of mass? Center of angular momentum (collectively on all the stars), center of light, something else?
    There maybe damping effects that tend to bring SMBHs into the center of Dark Matter, but I think it is unlikely, given that this galaxy has assembled at least in part through mergers, that Sgr A-star is at the exact center.
    Forming opinions as we speak

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