Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21812905r&link_type=abstract
American Astronomical Society, AAS Meeting #218, #129.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Massive stars are formed in warm, dense condensations in molecular clouds known as hot molecular cores (HMCs). Despite their importance, the role that HMCs play in the evolution of massive stars is currently not well understood due to a lack of observational data and hence physical properties. Molecular transitions in the HMCs are used to deduce the physical properties of these regions. In this study, observations of CH3CN in the J=12-11 transition in the 1mm band for 9 massive star forming regions were made using the Arizona Radio Observatory 10m Telescope on Mt. Graham, AZ (SMT). We report results of the derivation of column densities and temperatures of the observed sources using the population diagram technique, as well as a kinematic analysis based on our high resolution spectra. This research is supported by NSF grant AST-0908901.
Araya Ernesto
Bieging John
Hofner Peter
Jordan Elizabeth
Kurtz Stan
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