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Physics Colloquium: Binary neutron star mergers and gravitational waves - Prof. Wolfgang Tichy (Florida Atlantic University)

This is a past event.

Friday, October 15, 2021 at 1:00pm to 2:00pm

PG6 - Tech Station, 112
11200 SW 8th ST, PG6 - Tech Station, Miami, Florida 33199

When compact objects such as neutron stars or black holes occur in binary configurations they can lose energy and spiral toward each other via the emission of gravitational waves. Waves from such inspirals have now been observed for both binary black holes and binary neutron stars. In order to analyze them it is important to have theoretical wave templates. Professor Wolfgang Tichy of Florida Atlantic University describes how numerical relativity simulations can be used to construct such templates. He starts with a brief introduction to General Relativity and explains what black holes and neutron stars are. Then he explains how to conduct numerical simulations and how they can be used to extract interesting information form observed gravitational wave signals. For example, it is possible constrain the equation of state of neutron star matter by comparing gravitational waves from actual detections and numerical simulations. To do so, we have to conduct simulations for various star masses, spins and equations of state.

Professor Wolfgang Tichy graduated in 1996 with a Masters in physics from the University of Karlsruhe (Germany). Afterward, he obtained his PhD at Cornell University in 2001 and held postdoctoral positions at the Albert Einstein institute in Golm (German) and Penn State University. In 2005 he joined the faculty at
Florida Atlantic University where he currently is a full professor. His research interests lie in the numerical simulations of black holes and neutron stars, binary systems as a source of gravitational waves and post-Newtonian initial data for black holes.

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