Astrophysics Source Code Library

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[ascl:2212.021] Infinity: Calculate accretion disk radiation forces onto moving particles

Infinity sets an observer in a black hole - accretion disk system. The black hole can be either Schwarzschild (nonrotating) or Kerr (rotating) by choice of the user. This observer can be on the surface of the disk, in its exterior or its interior (if the disk is not opaque). Infinity then scans the entire sky around the observer and investigates whether photons emitted by the hot accretion disk material can reach them. After recording the incoming radiation, the program calculates the stress-energy tensor of the radiation. Afterwards, the program calculates the radiation flux and hence, the radiation force exerted on target particles of various velocity profiles.

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