Radiative transfer in black hole systems

Details Radiative transfer in black hole systems Radiative transfer in black hole systems

2008-11-13

arxiv.org/abs/0811.2060v1

Astronomy and Astrophysics

Astrophysics

to appear in the proceedings of the Vulcano08 Workshop on "Frontier Objects in Astrophysics and Particle Physics"

Scientific paper

We present a convariant formulation for radiative transfer in curved space time and demonstrate some applications in the black-hole systems. We calculate the emission from semi-transparent accretion tori around black holes, for opacity provided by the Fe K lines and for opacity dominated by electron scattering. We also calculate the emission from radiative inefficient accretion flow in black holes with opacity provided by electron-positron annihilation lines. Finally we show shadows cast by accreting black holes with different spins and with different distribution of warm material around them.

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