Title

The composition of interstellar molecular clouds

Publication Date

1999

Journal or Book Title

SPACE SCIENCE REVIEWS

Abstract

We consider four aspects of interstellar chemistry for comparison with comets: molecular abundances in general, relative abundances of isomers (specifically, HCN and HNC), ortho/para ratios for molecules, and isotopic fractionation, particularly for the ratio hydrogen/deuterium. Since the environment in which the solar system formed is not well constrained, we consider both isolated dark clouds where low mass stars may form and the "hot cores" that are the sites of high mass star formation. Attention is concentrated on the gas phase, since the grains are considered elsewhere in this volume.

Comments

The published version is located at http://www.springerlink.com/content/r8t24w827755585q/

DOI

10.1023/A:1005258300558

Pages

203-218

Volume

90

Issue

1-2

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