Abstract
We carried out H alpha +[N II] emission line imaging survey of a sample of nine ring galaxies in order to map the distribution of H II regions in them. H II regions are detected in all the nine galaxies, with a majority of the H II regions confined to the ring. In four of the sample galaxies, we detect relatively faint intra-ring H alpha emission. The intra-ring/total flux fraction is 0.20-0.30 in three cases (Arp141, 291, and 143) and 0.45 in the fourth (NGC2793). The utility of these galaxies with intra-ring H alpha emission for the determination of abundance gradients is discussed.
