2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/179175In view of the ongoing galactic (or cosmic) axion detection experiments, we compare the axion-photon-photon coupling $c_{aγγ}$'s for various invisible (or very light) axion models.LaTeX, 1 eps figure includedHigh Energy Physics - PhenomenologyAstrophysicstext