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1 results

  • Forming misaligned stellar disks around a massive black hole: cloud infall in the Galactic center

  • William Lucas, Ian Bonnell, Melvyn Davies, Ken Rice
  • Journal:
    Proceedings of the International Astronomical Union / Volume 9 / Issue S303 / October 2013
    Published online by Cambridge University Press:
    22 May 2014, pp. 245-247
    Print publication:
    October 2013
    • Article
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  • The innermost parsec around Sgr A* has been found to play host to two disks or streamers of O and W-R stars. They are misaligned by an angle approaching 90°. That the stars are approximately coeval indicates that they formed in the same event rather than independently. We have performed smoothed particle hydrodynamic simulations of the infall of a single prolate cloud towards a massive black hole. As the cloud is disrupted, the large spread in angular momentum can, if conditions allow, lead to the creation of misaligned gas disks. In turn, stars may form within those disks. We are now investigating the origins of these clouds in the Galactic center (GC) region.