Colloquium by Dr Johannes Noller (16th October)

Testing gravity with cosmology and gravitational waves

Abstract

In this talk I will sketch how combining traditional observational bounds from cosmology, new constraints from gravitational wave measurements and insights from theoretical particle physics allows us to test gravity with unprecedented precision, in particular zooming in on the nature of dark energy. As an explicit example, I will highlight the interplay between gravitational wave constraints from the neutron star merger GW170817, data constraints from cosmic microwave background and galaxy clustering measurements, and
theoretical priors on dark energy theories from requiring them to be well-behaved and consistent at high energies.

Date: 16th October

Time: 2pm

Location: 2pm in the Ingram Lecture Theatre (ILT)