Research Division Seminar
Hunting dark matter lines with the James Webb Space Telescope

Dark matter particles with a mass around 1 eV can decay into near-infrared photons. Utilising blank-sky observations from the NIRSpec IFU on the James Webb Space Telescope, we search for a narrow emission line due to decaying dark matter and derive leading constraints in the mass range 0.8-3 eV on the decay rate to photons.