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15.04.2021 / 15:00 - 16:30 / Hamburg, online / zoom
astroparticle seminarSupernovae as cosmic laboratories for axions
Alessandro Mirizzi (Bari)
Axions might be copiously emitted during a supernova explosion, leading to an additional energy-loss channel that would shorten the duration of the neutrino burst. In this context, I will revise the axion bounds from SN 1987A neutrino observation. I will present recent results on axions from supernovae including(a) a state-of-the-art calculation of the axion emission via nucleon-nucleon bremsstrahlung;(b) an investigation of the axion emission via pionic Compton processes;(c) a characterization of the diffuse axion fluxes from all past core-collapse supernovae. The interplay with current and future axion searches will be also discussed.
