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FTheory: And Then There Were Three©

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B.S. Sathyaprakash, Penn State
06 October 2017 from 11:15 AM to 12:15 PM
320 Whitmore Lab
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On August 1, 2017 Virgo, the third laser interferometer gravitational-wave detector, began taking data jointly with the American Laser Interferometer Gravitational-Wave Observatory (LIGO). Within two weeks, the three interferometers observed the coalescence of a heavy black hole binary at 520 Mpc. Thanks to the addition of Virgo we can now triangulate sources on the sky by a factor of ~30, which will make it easier to hunt for electromagnetic counterparts to gravitational-wave signals. More importantly, we can now measure the polarization of gravitational waves. In this talk I will summarize the implication of this new discovery for astrophysics and how it helps to confirm a key prediction of Einstein's general relativity. 

©Talk title borrowed from the ninth studio album by the English rock band Genesis.