Description
Pulsar timing array collaborations have recently presented evidence of nanohertz gravitational waves. These gravitational waves are believed to originate from the inspiralling phase of supermassive black hole binary systems, producing detectable signals at low frequencies. This presentation will provide a basic understanding of pulsar timing arrays and discuss the methods used to identify gravitational wave signals.The focus of this talk will be on the findings from the European Pulsar Timing Array (EPTA) collaboration. We will explore the practical aspects of pulsar timing arrays and share the latest results from EPTA's efforts to detect and study nanohertz gravitational waves.