2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/128390We explore the possibility that a magnetar may owe its strong magnetic field to a magnetized core which, as indicated by certain equations of state, may form due to phase transitions at high density mediated by strong interaction within a sufficiently massive neutron star. We argue that the field derived from such a core could explain several inferred evolutionary behaviors of magnetars.5 pages, 1 figureAstrophysicstext