2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/15305I briefly summarize some facts and ideas concerning the presence of neutron stars in Supernova remnants. While sources similar to the Crab Nebula require the presence of a central energetic object, shell-type remnants such as Cas A are compatible with the presence of neutron stars releasing a weak relativistic wind.3 pages, to be published in proceedings of ``Highly Energetic Physical Processes and Mechanisms for Emission from Astrophysical Plasmas'', ASP Conf. SerAstrophysicstext