Galaxy Kinematics with VIRUS-P: The Dark Matter Halo of M87

@article{Murphy2011GalaxyKW,
  title={Galaxy Kinematics with VIRUS-P: The Dark Matter Halo of M87},
  author={J. Murphy and K. Gebhardt and J. Adams},
  journal={The Astrophysical Journal},
  year={2011},
  volume={729},
  pages={129}
}
  • J. Murphy, K. Gebhardt, J. Adams
  • Published 2011
  • Physics
  • The Astrophysical Journal
  • We present two-dimensional stellar kinematics of M87 out to R = 238'' taken with the integral field spectrograph VIRUS-P. We run a large set of axisymmetric, orbit-based dynamical models and find clear evidence for a massive dark matter halo. While a logarithmic parameterization for the dark matter halo is preferred, we do not constrain the dark matter scale radius for a Navarro-Frenk-White (NFW) profile and therefore cannot rule it out. Our best-fit logarithmic models return an enclosed dark… CONTINUE READING
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