Speaker
Jorge García García
(Universidad de Granada, Instituto de Astrofísica de Andalucía)
Description
Axion-like particles (ALPs) can be produced in core-collapse supernovae (SNe) through various mechanisms, such as photon coalescence, Primakoff, electron-positron fusion and electron-Bremsstrahlung, due to their potential coupling to electrons. In this talk, I will explore ALP production for masses between 10 keV and 100 MeV, which are expected to decay producing gamma-ray signals that could be detected at Earth. Constraints on ALP-electron couplings have been derived from the non-detection of gamma rays from SN 1987A. I will extend these analyses to modern observations, such as SN 2023ixf, to establish updated bounds on ALP-electron couplings.
Primary author
Jorge García García
(Universidad de Granada, Instituto de Astrofísica de Andalucía)
