September 23, 2024 at 3:30pm: As part of the School Of Physics Fall Colloquium Series, Jessie Runnoe (Vanderbilt University) presents: Electromagnetic and multi-messenger searches for supermassive black hole binaries
Supermassive black hole binaries are thought to be an inevitable product of the prevailing galaxy evolution scenarios where most massive galaxies host a central black hole and undergo mergers over cosmic time. The early stages of this process have been observed in the form of interacting galaxy pairs and widely separated dual quasars, but the close, gravitationally bound binaries that are expected to follow have proven elusive. The detection of this population is important because at the smallest separations they become bright sources of low-frequency gravitational waves and are prime targets for multi-messenger detections with pulsar timing arrays (PTAs) and the upcoming Laser Interferometer Space Antenna (LISA). In this talk, I will discuss observational signatures of binary supermassive black holes and prospects for multi-messenger detections with electromagnetic facilities and gravitational wave detectors.
Date/Time: Date: Monday, September 23, 2024 – 3:30pm to 4:30pm
Location: Marcus Nanotechnology 1116-1118
Event details here.