Measuring Stochastic Gravitational Wave Backgrounds with Pulsar Timing Arrays

My talk focuses on using Pulsar Timing Array (PTA) data to measure Gravitational Waves (GWs). In particular, I will focus on Stochastic GW Background (SGWB) measurements. After a general introduction to the topic, I will discuss a new (simplified) approach to constrain SGWBs with PTA data. This methodology significantly reduces the computational cost of the analysis, opening up new avenues to explore the constraining power of PTA experiments. Within this framework, I’ll revisit the constraints current and future PTA experiments can set on cosmological scenarios.