The Demography of massive dark objects in galaxy centers

  title={The Demography of massive dark objects in galaxy centers},
  author={John Magorrian and Scott Tremaine and Douglas O. Richstone and Ralf Bender and Gary Allen Bower and Alan Dressler and S. M. Faber and Karl Gebhardt and Richard Green and Carl J. Grillmair and John Kormendy and Tod R. Lauer},
  journal={The Astronomical Journal},
We construct dynamical models for a sample of 36 nearby galaxies with Hubble Space Telescope (HST) photometry and ground-based kinematics. The models assume that each galaxy is axisymmetric, with a two-integral distribution function, arbitrary inclination angle, a position-independent stellar mass-to-light ratio , and a central massive dark object (MDO) of arbitrary mass M•. They provide acceptable fits to 32 of the galaxies for some value of M• and ; the four galaxies that cannot be fitted… Expand
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