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April 29, 2023
OSU Physics Research Building
America/New_York timezone

Seeing Gravity and the (Invisible) Universe with Pulsar Timing Arrays

Apr 29, 2023, 2:00 PM
Smith Seminar Room (OSU Physics Research Building)

Smith Seminar Room

OSU Physics Research Building


Emmanuel Fonseca (West Virginia University)


Pulsars are rotating neutron stars that emit beamed emission observed as periodic pulses on Earth. The practice of "pulsar timing" yields a wealth of uniquely powerful measurements across different astrophysical phenomena. Among these is the gradual detection of a stochastic background of gravitational waves (GWs) using a collection of pulsars rotating with millisecond spin periods. In my talk, I will overview the concept of "pulsar timing arrays" and discuss ongoing work being undertaken by members of the NANOGrav collaboration in constraining the presence of GWs at nanohertz frequencies.

Presentation materials