A 330-360 GHz spectral survey of G 34.3+0.15. II. Chemical modelling.

Details A 330-360 GHz spectral survey of G 34.3+0.15. II. Chemical modelling. A 330-360 GHz spectral survey of G 34.3+0.15. II. Chemical modelling.

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...325.1163m&link_type=abstract

Astronomy and Astrophysics, v.325, p.1163-1173

Astronomy and Astrophysics

Astrophysics

70

Ism: Individual Objects: G 34.3+0.15 (Grs 34.3+0.15), Ism: Molecules, Ism: Abundances

Scientific paper

We describe a detailed depth- and time-dependent model of the molecular cloud associated with the ultracompact HII region G 34.3+0.15. Previous work on observations of NH_3_ and CS indicates that the molecular cloud has three distinct physical components:- an ultracompact hot core, a compact hot core and an extended halo. We have used the physical parameters derived from these observations as input to our detailed chemical kinetic modelling. The results of the model calculations are discussed with reference to the different chemistries occuring in each component and are compared with abundances derived from our recent spectral line survey of G 34.3+0.15 (Paper I, Macdonald et al., 1996A&AS..119..333M).

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