An atlas of H II regions in nearby Seyfert galaxies

Abstract

Continuum-subtracted Hα images of 17 nearby Seyfert galaxies are presented. The images are calibrated astrometrically usmg the Hubble Space Telescope Guide Star Catalog reference frame. For each galaxy, an inventory of HII regions detected using the COSMOS image classifier and centroider is provided. Salient features of each galaxy are described, including the distribution of the H II regions with reference to te galaxy morphology. Relevant abundance data from the literature are noted for each object. These images will find use as finding charts for follow up spectrophotometric investigations of abundances, abunndance gradients, and kimematics of H II regions in active galaxies, and for detailed studtes of H II region populations in these objects.