منابع اصلی یونیزاسیون گاز در چند کهکشان ستاره زای نزدیک

Abstract

The study of the state of galactic ISM, the intensity emission lines are used to separate main ionization sources that the result diagrams in this way are named BPT Diagrams. In the intermediate cases, for example, when the contributions of radiation from OB stars and from shock waves mix, identification becomes uncertain. Adding of an extra parameter - the gas velocity dispersion in the line-of-sight to classical diagnostic diagrams (i.e. "BPT-