Speaker
Andrea Mitridate
Description
Several Pulsar Timing Array collaborations have recently found evidence for the presence of a Gravitational Wave Background (GWB) at nHz frequencies. This background could either be sourced by the overlapping GW emission of a population of supermassive black hole binaries or by cosmological sources generating GW in the early Universe. In this talk, I will discuss the prospects of discriminating between these two possibilities by looking for GWB anisotropies.