Chemical modelling of hot molecular cores and comparison with observations

Details Chemical modelling of hot molecular cores and comparison with observations Chemical modelling of hot molecular cores and comparison with observations

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007msl..confe.103c&link_type=abstract

"Molecules in Space and Laboratory, meeting held in Paris, France, May 14-18, 2007. Editors: J.L. Lemaire, F. Combes. ISBN: 9782

Astronomy and Astrophysics

Astrophysics

Modelling_Environments

Scientific paper

Observations of gas phase species inside hot cores aid in the understanding of the physical conditions. Predictive chemical models are useful in interpreting observations, and some species act as chemical clocks which help determine the age of a hot core. Observed line intensities must be converted to abundances for comparison with predictions. Commonly, one assumes that a species is in LTE for simplicity, however, this only roughly constrains the column density (Walsh et al., 2007). A radiative transfer (non-LTE) calculation which includes collisional excitation with H2 is more desirable.

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