#### Prof. Mark Hannam, from the School of Physics and Astronomy at Cardiff University, will give a talk on

**Numerical Relativity and the Future of Gravitational-Wave Astronomy**

**Abstract: **Gravitational waves have been directly detected for the first time, from the collision of two black holes. Measuring the properties of the black holes (their masses and spins) required theoretical models of the signal, calculated by combining analytic approximation techniques with numerical solutions of the full Einstein equations for the last orbits and merger. I will discuss how the models were produced that were used in measuring the properties of the first black-hole-binary observed, and the challenges ahead as we enter the era of gravitational wave astronomy.

This talk follows a UNC Astrophysics lecture by Dr. Subinoy Das of the Indian Institute of Astrophysics, “Astrophysical Small Scale Signatures of Non-WIMP Dark Matter” in 277 from 3-4pm.

A reception will be held at 5pm in Phillips 277.