Absorption of bound supernova axion-like particles by the neutron star weakens the heating limits on their photon coupling

Probit J Kalita, Subha Mitra, Bharat Kumar

Axion-like particles (ALPs) that couple to protons are produced in a core-collapse supernova, and the slow ones remain bound to the new neutron star. Bose, Ganguly, Kumar, and Raj…