Monika Moscibrodzka (Radboud University)
Tracing extreme physics in extreme gravity of black holes
Wednesday, 22 January 2026, 10:00–11:00 in HG03.084
Abstract
Astrophysical black holes, i.e., those which astronomers do observe in a near
and far Universe, are often embedded in extremely hot swirl of plasma rotating
almost at the speed of light. The physical conditions in such environment are
not achievable in our Earth laboratories hence observations of plasma in a
close vicinity of black holes enable studies of plethora of exotic phenomena
such as particle acceleration to extreme energies, gravitational energy
conversion to other forms of energy, or even the famous dilation of time in strong gravity.
Connecting all this fascinating physics with observers on Earth requires
accurate and precise integrator of radiation transport.
In this seminar I will talk about techniques of light transport in context of
black holes and in particular I will focus on three related problems which
used to be computationally expensive but thanks to my group recent efforts
this is no longer the case. I will conclude with outlining some remaining challenges.