New results from the Pulsar Timing Array hunt for nanohertz-frequency gravitational waves

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• Stephen Taylor, Vanderbilt University
• Wednesday 07 October 2020, 15:00-16:00
• online .

If you have a question about this talk, please contact Silvia Toonen.

PhD meet & greet at 16.30

Gravitational-wave detectors are yielding a bounty of observations, and revolutionising our understanding of stellar-mass black holes. But what about the supermassive black holes that lurk at the heart of massive galaxies? These titans form binaries over cosmic time as a byproduct of galaxy growth, emanating gravitational waves in the nanohertz-frequency sensitivity band of networks of Milky Way millisecond pulsars. Pulsar-timing arrays (PTAs) like the North American Nanohertz Observatory for Gravitational waves (NANOGrav) and the International Pulsar Timing Array are poised to chart this new frontier of gravitational wave discovery within the next several years. I will present new results from NANO Grav’s most recent search, discuss some milestones on the road to the exciting next decade of PTA discovery, and highlight new techniques to facilitate future multi-messenger supermassive black-hole binary characterization.

This talk is part of the Astrophysics Seminars series.

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