SIMBAD references

2009ApJ...700..752W - Astrophys. J., 700, 752-761 (2009/July-3)

The effects of molecular anions on the chemistry of dark clouds.

WALSH C., HARADA N., HERBST E. and MILLAR T.J.

Abstract (from CDS):

We have investigated the role of molecular anion chemistry in pseudo-time-dependent chemical models of dark clouds. With oxygen-rich elemental abundances, the addition of anions results in a slight improvement in the overall agreement between model results and observations of molecular abundances in Taurus molecular cloud 1 (TMC-1 (CP)). More importantly, with the inclusion of anions, we see an enhanced production efficiency of unsaturated carbon-chain neutral molecules, especially in the longer members of the families CnH, Cn H2, and HCnN. The use of carbon-rich elemental abundances in models of TMC-1 (CP) with anion chemistry worsens the agreement with observations compared with model results obtained in the absence of anions.

Abstract Copyright:

Journal keyword(s): astrochemistry - ISM: abundances - ISM: clouds - ISM: molecules

Simbad objects: 8

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2023.06.09-08:55:24

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