2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6013We study the scenario that a new born strange quark star cools to the Quantum ChromoDynamics (QCD) phase transition temperature and converts to a neutron star, and we calculate the evolution of temperature and luminosity of the compact star. We argue that the conversion energy released can be of the order $10^{53}$ erg. We also propose that a second neutrino burst will be emitted at the completion of this phase transition.6 pages, 1 figure, minor modified and subtitles added, typos corrected. Accepted for publication in Monthly Notice LetterAstrophysicsHigh Energy Physics - PhenomenologyNuclear Theorytext