Special TAPIR Seminar

Thursday, January 22, 2026

2:00pm to 3:00pm

Online and In-Person Event

Modified Theories of Gravity, Parity, and the Dark Sector

Tatsuya Daniel, Postdoctoral Fellow, Trottier Space Institute, McGill University,

In person: NOTE: 312 Cahill. To Join via Zoom: 851 0756 7442

Abstract: Motivated by open questions such as the matter-antimatter asymmetry, the dark sector, and a quantum theory of gravity, I will talk about theories beyond the standard cosmological and gravitational paradigms, in particular the theoretical and observational prospects of such theories. I will explain a parameterization I developed to use gravitational waves (GWs) for constraining a wide class of theories beyond general relativity (GR) in explicitly parity-violating and parity-invariant contributions. Such theories can contain candidates for the dark sector, including axions, Kalb-Ramond dark matter, U(1) vector fields, and the dilaton. As such, this parameterization facilitates probing beyond-GR theories using compact objects, galactic halos, and cosmological evolution, in addition to other observational windows aside from GWs.

For more information, please contact JoAnn Boyd by email at [email protected].

Event Series

TAPIR Seminar Series

Event Sponsors

Theoretical AstroPhysics Including Relativity and Cosmology (TAPIR) More Events from this Sponsor