The existence of light QCD axions, whose mass depends on an additional free parameter, can lead to a new ground state of matter, where the sourced axion field reduces the nucleon effective mass. The presence of the axion field has structural consequences, in particular, it results in a thinner (or even prevents its existence) heat-blanketing envelope, significantly altering the cooling...
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...
