Stellar mass loss and HII region morphology in Magellanic irregular galaxies

Abstract
The problem of the interaction of a strong stellar wind with a massive collapsing neutral hydrogen cloud has been considered and a new class of steady flow solutions found. The detailed comparison of these models with one filamentary shell, N70 in the LMC, shows that they successfully explain all the observed properties of the HII region and enable mean mass-loss rates to be derived for the central stars.