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Chemistry in the LMC and SMC

Published online by Cambridge University Press:  25 May 2016

L.E.B. Johansson
L.E.B. Johansson*
Affiliation:
Onsala Space Observatory, S-439 92 Onsala, Sweden

Abstract

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Molecular abundances derived in a sample of CO complexes in the Magellanic Clouds are discussed. With a possible exception of HCO+, the chemical compositions observed in this sample show a striking uniformity. The data indicate that the molecular concentrations are down by a factor of 5 in the SMC, relative those observed in a cloud associated with the H II region N159 in the LMC. A similar difference seems to exist within the LMC, between the 30 Doradus region and the N159 area. An estimate of the electron abundance in the N159 cloud is presented, based on a recent detection of DCO+.

Type
Galaxies
Information
Symposium - International Astronomical Union , Volume 178: Molecules in Astrophysics: Probes and Processes , 1997 , pp. 515 - 524
Copyright
Copyright © Kluwer 1997 

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