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Colloquium – Sergey Klimenko, UF Physics

Date September 8, 2020 @ 4:00 pm - 5:00 pm

GW190521: an “Impossible” Binary Black Hole

With the first direct observation of gravitational waves (GW) on September 14, 2015, the advanced LIGO detectors opened new possibilities to explore our Universe. This first GW signal was not from the much-anticipated binary neutron star inspiral (BNS), but from a quite unexpected merger of binary black holes (BBH). Now, five years later, the LIGO GW detectors have recorded two BNS and more than 50 BBH signals, including GW190521?a possible missing link between stellar-mass black holes and supermassive black holes. This is another unexpected BBH event, which informs our understanding of the evolution of the most massive stars and the growth of massive black holes. I will talk about the LIGO detectors, data analysis, and detections of the most cataclysmic astrophysical events in the Universe.

Details

Date:
September 8, 2020
Time:
4:00 pm - 5:00 pm
Event Categories:
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Venue

Via Zoom