Oral Presentation

Probing Parity Violation in the Stochastic Gravitational Wave Background with Astrometry

Author(s):

Presenter: Sam Wong (City University of Hong Kong)

Astrometry holds the potential for testing fundamental physics through the effects of the Stochastic Gravitational Wave Background (SGWB) in the $\sim 1-100$ nHz frequency band on the precision measurements of stellar positions. Such measurements are complementary to tests made possible by the detection of the SGWB using Pulsar Timing Arrays.
Here, the feasibility of using astrometry for the identification of parity-violating signals within the SGWB is investigated.
This is achieved by identifying and quantifying a non-vanishing $EB$ correlation function within astrometric correlation functions, and investigating how one might estimate the detectability of such signals.