Orateur
Frederic Vincent
(Observatoire de Paris / LESIA)
Description
The ray-tracing code GYOTO of Paris Observatory is made to compute null geodesics in arbitrary spacetimes and integrate the radiative transfer equation in various contexts. Typically, it is used to simulate images and various observables produced in the vicinity of black holes, like Sagittarius A* at the Galactic center. A recent new development of the code now allows to simulate the full polarized electromagnetic radiation. In this talk, I will present a quick reminder of electromagnetic polarization in curved spacetimes, and discuss how this might be useful to constrain gravity in the vicinity of compact objects.
