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Oberlin Physics & Astronomy Colloquium: Sarah Vigeland (Univ. Wisconsin-Milwaukee), Merging Galaxies and Supermassive Black Holes: Detecting Gravitational Waves with Pulsar Timing Arrays
For more than a decade, pulsar timing arrays (PTAs) have been using millisecond pulsars to search for low-frequency gravitational waves (GWs) from supermassive black hole binaries (SMBHBs) in distant galaxies. PTAs are sensitive to individual SMBHBs, as well as the gravitational wave “hum” produced by the sum of all SMBHBs. I will discuss how PTAs detect gravitational waves, and give the current status of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) PTA.

Sep 24, 2020 05:00 PM in Eastern Time (US and Canada)

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