Galactic-Scale Tests of Fundamental Physics
Date:
Conventional probes of fundamental physics tend to consider one of three regimes: small scales, cosmological scales or the strong-field regime. Since LCDM is known to have several galactic-scale issues and novel physics (modified gravity, non-cold dark matter etc.) can alter galactic dynamics and morphology, tests of fundamental physics on astrophysical scales can provide tight constraints which are complementary to traditional techniques. By forward-modelling observational signals on a source-by-source basis and marginalising over models describing other astrophysical and observational processes, it is possible to harness the constraining power of galaxies whilst accounting for their complexity. In this talk I will demonstrate how these Bayesian Monte Carlo-based forward models can be used to constrain a variety of gravitational theories and outline ways to assess their robustness to baryonic effects.
- Given at:
- Carnegie Mellon University (Dec. 2021)
- University of Nottingham (Nov. 2021)
- Jet Propulsion Laboratory, California Institute of Technology (Nov. 2021)
- University College London (Oct. 2021)
- Institute of Cosmology and Gravitation, University of Portsmouth (Oct. 2021)
- University of California, Berkeley (Oct. 2021)
- Princeton & The Institute for Advanced Study (Oct. 2021)
- Imperial Centre for Inference and Cosmology, Imperial College London (Oct. 2021)
- University of Pennsylvania (Sep. 2021)
- Columbia University (Sep. 2021)
- Oskar Klein Centre, Stockholm University (Sep. 2021)
- Institut d’Astrophysique de Paris (Sep. 2021)