News & Events

Melissa Diamond (Queen’s)

Event Details

McDonald Institute Seminar Series

Location: STI 501, and Zoom

Date: February 9, 2023

Time: 2:30pm - 3:30pm

Title: Finding Dark Matter in Fireballs

Compact transients such as supernova and binary neutron star mergers can produce enormous fluxes of exotic particles.  One way to look for them is through fireballs, a dense expanding photon electron plasma formed when exotic particles escaping a compact source quickly decay to the standard model.  Fireballs produce a unique signal, allowing us to observe new parts of dark photon and axion parameter space.  Fireballs from the neutron star merger GW170817can produce new constraints on axions with masses between 1 MeV and 1 GeV, while a fireball from SN1987a opens up previously ruled out parameter space.


This McDonald Institute seminar will be held in Stirling 501, and on Zoom. Please contact Aaron Vincent to be added to the Queen’s astroparticle listserv, through which the zoom link will be posted.