Effects of a black hole's gravitational field on the luminosity of a star during a close encounter

  title={Effects of a black hole's gravitational field on the luminosity of a star during a close encounter},
  author={A. Gomboc and A. {\vC}ade{\vz}},
  journal={The Astrophysical Journal},
To complement hydrodynamic studies of the tidal disruption of the star by a massive black hole, we present the study of stellar luminosity and its variations produced by the strong gravitational field of the black hole during a close encounter. By simulating the relativistically moving star and its emitted light and taking into account general relativistic effects on particle and light trajectories, our results show that the black hole's gravity alone induces apparent stellar luminosity… Expand

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