Weekly seminars

Probing Axions with Astrophysics and Gravitational Waves

par Thomas Edwards (OCK Stockholm)

Europe/Paris
Description

Axions represent one of the most promising dark matter candidates to date. Although experimental searches have recently made huge progress, much of the axion parameter space remains unexplored. In this talk, I will first discuss recent proposals to search for axion dark matter using radio observations of neutron stars before describing how dense substructures, called axion miniclusters, could potentially lead to radio transients in the Galactic center. Next, I will show how a dark matter spike, combined with a neutron star — intermediate mass black hole binary, could lead to a multi-messenger signal of QCD axion dark matter. Finally, I will explore how LIGO and Virgo observations of low-mass binary systems can be used to search for axions.