Triggering, suppressing and redistributing star formation
  We discuss three different ways in which stellar feedback may alter the outcome of star cluster formation: triggering or suppressing star formation, and redistributing the stellar population in space. We use detailed Smoothed Particle Hydrodynamics (SPH) simulations of HII regions in turbulent molecular clouds to show that all three of these may happen in the same system, making inferences about the effects of feedback problematic. 
James E. Dale, Barbara Ercolano, Ian Bonnell
astro-ph.GA