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Molecule Formation in External Galaxies

Published online by Cambridge University Press:  07 August 2017

T J Millar  and
E. Herbst
T J Millar
Affiliation:
Department of Mathematics, UMIST, PO Box 88, Manchester M60 1QD, UK
E. Herbst
Affiliation:
Physics Department, Ohio State University, 174 W. 18th Ave, Columbus, Ohio 43210, USA

Abstract

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We discuss the parameters needed to model chemistry in extragalactic clouds. While density and temperature can be constrained by multiline observations, molecular abundances may be severely affected by the adopted elemental abundances. While the observations of the Magelllanic Clouds can be reasonably interpreted in terms of dark cloud models, molecular gas in starburst galaxies could well be dominated by photoeffects. The detection of deuterium in extragalactic molecules would provide a valuable diagnostic.

Type
External Galaxies
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 121 - 126
Copyright
Copyright © Kluwer 1992 

References

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