An investigation of diffuse cloud chemistry. II - Inferred interstellar parameters

Details An investigation of diffuse cloud chemistry. II - Inferred interstellar parameters An investigation of diffuse cloud chemistry. II - Inferred interstellar parameters

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.214..279m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 214, May 15, 1985, p. 279-287.

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9

Cosmic Rays, Gas Density, Gaseous Diffusion, Interstellar Chemistry, Molecular Clouds, Radiant Flux Density, Astronomical Models, Computational Astrophysics, Computational Chemistry, Interstellar Radiation

Scientific paper

The chemistry in diffuse clouds is discussed in terms of a low-density equilibrium model, and attention is given principally to those molecules which are formed predominantly in the gas phase. The model indicates that substantial variations in the cosmic ray flux and interstellar radiation field occur from cloud to cloud. If these variations are included, then, for the limited observational data set available, the low-density equilibrium model provides a satisfactory though not unique description of individual molecular clouds, apart from the case of CH+. In particular, a high-density core in diffuse clouds is shown not to be obligatory.

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