Mathematics – Logic
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atnf.prop.3673m&link_type=abstract
ATNF proposal M578, Semester: October, 2010
Mathematics
Logic
Star Formation, Interstellar Medium In And Around The Milky Way, Mopra
Scientific paper
Many Galactic HII regions show symptoms of triggering in the formation of surrounding massive protostars, i.e. ionized regions surrounded by apparently fragmented filaments of dust and gas, within which are embedded massive young stellar objects. The contribution of feedback and triggering to the Galactic stellar population is currently poorly known and this has implications for the variability of star formation efficiency across different environments, both Galactic and extragalactic. The Red MSX Source survey has identified ~1300 massive YSOs, as many as 50% of which may be the result of triggering mechanisms occurring around HII regions. We propose to map a small sample of these HII regions as a precursor to a larger survey. Our objectives are to evaluate the gas content in the regions immediately surrounding several HII regions. Our main goal is to establish the star formation efficiency in these regions as compared to regions which are not subject to the same environmental conditions (and hence, untriggered). We should also be able to establish the status of triggering within these clouds through kinematic signatures, pressure gradients and morphological arguments.
Moore Toby
Morgan Larry
Urquhart James
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