The Accretion luminosity of a massive black hole in an elliptical galaxy

  title={The Accretion luminosity of a massive black hole in an elliptical galaxy},
  author={Andrew C. Fabian and Martin J. Rees},
  journal={Monthly Notices of the Royal Astronomical Society},
  • A. Fabian, M. Rees
  • Published 19 September 1995
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Most large elliptical galaxies should now host a massive black hole leftover from an earlier quasar phase. Such galaxies also have an extensive hot gaseous halo. Here we consider why the nuclei of elliptical galaxies are not luminous sources due to the accretion of the hot gas by the central black hole, yet have weak radio sources. In particular we suggest that accretion from the hot medium has low radiative efficiency and forms a hot ion torus surrounding the black hole. Synchrotron emission… 
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