Fast Radio Burst dispersion measures and rotation measures and the origin of intergalactic magnetic fields

Understand

We investigate the possibility of measuring intergalactic magnetic fields using the dispersion measures and rotation measures of fast radio bursts.

• With Bayesian methods, we produce probability density functions for values of these measures.
• We distinguish between contributions from the intergalactic medium, the host galaxy and the local environment of the progenitor.
• To this end, we use constrained, magnetohydrodynamic simulations of the local Universe to compute lines-of-sight integrals from the position of the Milky Way.