Unprecedented polarization results from the MeerKAT Fornax survey

One of the goal of the SKA precursors and pathfinders is to release high sensitivity and high resolution images of the faint polarized sky. This will allow us to constrain the origin and the evolution of large scale magnetic fields and to study in detail the properties of the faint radio sky. In this talk I will show how all of these goals can now be pursued with the MeerKAT Fornax Survey (MFS). The MFS is a MeerKAT key science project aiming at studying galaxy evolution (through neutral hydrogen) and the Fornax cluster magnetic field (with broad band spectro-polarimetric data) at L-band. The survey is still on going and with the broad band data acquired so far we obtained the densest number of polarized sources ever detected, i.e. 80 polarized source per square degree over a field of view of 6.35 deg². This huge number of polarized sources demonstrate the excellent capabilities of the MeerKAT telescope and allowed us to constrain the properties of the faint polarized sources as well as the intervening large scale magnetic fields.