2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/3190The preliminary results from a deep emission-line search for warm ionized material in the halos of nearby active and star-forming galaxies are presented. The origin of this gas is discussed in the context of galaxy formation and evolution.10 pages including 5 gif-formatted figures, invited contribution to the conference on "Extragalactic Gas at Low Redshift" held in Pasadena, California, April 2001Astrophysicstext