Abstract We present general relativistic radiation transfer formulations which include opacity effects due to absorption, emission and scattering explicitly. We consider a moment expansion for the transfer formulation in the presence of scattering. The formulation is applied to calculations of emissions from accretion and outflows in black-hole systems. Cases with thin accretion disks and accretion tori are considered. Effects, such as emission anisotropy, non-stationary flows and geometrical self-occultation are investigated. Polarisation transfer in curved space-time is discussed qualitatively.
Keywords accretion accretion disks black hole physics galaxies: active radiative transfer relativity
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