Stability of cloud orbits in the broad-line region of active galactic nuclei

@article{Krause2010StabilityOC,
  title={Stability of cloud orbits in the broad-line region of active galactic nuclei},
  author={Martin G H Krause and Andreas Burkert and M Schartmann},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2010},
  volume={411},
  pages={550-556}
}
We investigate the global dynamic stability of spherical clouds in the broad-line region (BLR) of active galactic nuclei (AGN), exposed to radial radiation pressure, gravity of the central black hole (BH) and centrifugal forces assuming the clouds adapt their size according to the local pressure. We consider both isotropic and anisotropic light sources. In both cases, stable orbits exist also for very sub-Keplerian rotation for which the radiation pressure contributes substantially to the force… Expand

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