Other
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725806o&link_type=abstract
American Astronomical Society, AAS Meeting #217, #258.06; Bulletin of the American Astronomical Society, Vol. 43, 2011
Other
Scientific paper
The process of massive star formation is not well understood. Recent work in large scale radiation hydrodynamical simulations have strongly suggested that radiation pressure can play an important role in opening cavities through which energy can be released, thus avoiding the problems of high radiation pressure supressing massive star formation. As a result, this pressure valve allows for the direct accretion of matter, and formation of massive stars. While these models include significant microphysics, it is important that predictions be made that allow the models to be compared with observations. Toward that end, we have undertaken a study of the chemistry in one of these collapsing cloud models. The chemical model involves the application of a large gas-phase and grain surface chemistry to the dynamical structure, including the effects of density, temperature, and radiation field. We present maps of H2, CO, and other molecular abundances as functions of space and time, as well as consider the resulting observational consequences of these results.
Doty Stephen
Krumholz Mark
Oman Kris
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