My PhD is centered around the general-relativistic radiative transfer code RAPTOR (short for RAdboud Polarized integraTOR). This code is capable of creating simulated observations of accreting black holes using the ray-tracing method. It is described in detail in the following two papers:
RAPTOR I: Time-dependent radiative transfer in arbitrary spacetimes
RAPTOR II: Polarized radiative transfer in curved spacetime
The code is also available on GitHub.
UNDER CONSTRUCTION…