"The Gravitational-Wave Universe Seen By Pulsar Timing Arrays" is the title of the talk to be presented by Chiara Mingarelli, PhD, of the Max Planck Institute for Radio Astronomy and California Institute of Technology.
Abstract: Galaxy mergers are a standard aspect of galaxy formation and evolution, and most (likely all) large galaxies contain supermassive black holes. As part of the merging process, the supermassive black holes should in-spiral together and eventually merge, generating a background of gravitational radiation in the nanohertz to microhertz regime. An array of precisely timed pulsars spread across the sky can form a galactic-scale gravitational wave detector in the nanohertz band. Mingarelli will describe the current efforts to develop and extend the pulsar timing array concept, together with recent limits which have emerged from North American and international efforts to constrain astrophysical phenomena at the heart of supermassive black hole mergers.
A reception for Mingarelli begins at 4:10 p.m. in the Anderson Lounge, Wright Lab, second floor.