Abstract Details
| Name: Jessy Jose Affiliation: Kavli Institute for Astronomy and Astrophysics Conference ID: ASI2016_749 Title : Effect of stellar feedback on subsequent star formation activity Authors and Co-Authors : Gregory H. Herczeg (Kavli Institute for Astronomy and Astrophysics), Jinyoung S. Kim (University of Arizona), Manash R. Samal (Laboratoire d'Astrophysique de Marseille) Abstract Type : Oral Abstract Category : Stars, The Milky Way Galaxy and its neighbours Abstract : One of the unsolved questions in the field of star formation concerns the effect that environment, in particular the stellar feedback may have on the subsequent star formation process. Numerical simulations show that the effect of stellar feedback in a massive star forming region depends upon several factors such as the amount of input radiation and wind energy, properties of the surrounding molecular cloud etc. As a result, the feedback effect on star formation activity may vary from region to region. In this context, star formation activity within a few, relatively distant (~2 kpc) massive star forming regions, which are thought to be evolving under the influence of massive stars have been performed. Using deep near-IR and mid-IR imaging data, we made a systematic analysis to obtain the census of young stellar objects and gas density structure of these regions. The combination of column density maps and stellar census lets us estimate the star formation efficiency and star formation rate of these regions. With the uniform data sets, we explore how the star formation properties at different parts of individual regions vary with respect to the dense gas fraction as well as the amount of input energy from massive stars. Our analysis suggests that the star formation history and dense gas fraction play important role in determining the global star formation properties of individual star forming regions. The stellar feedback from massive stars seems to be influencing only to its more localised neighbourhood and may not have measurable effect on the global star formation activities of the regions in this study. |