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Molecular depletions in cloud cores

An Observational Look at the Gas Phase Depletions

Published online by Cambridge University Press:  25 May 2016

Lee G. Mundy  and
Joseph P. McMullin
Lee G. Mundy
Affiliation:
Astronomy Dept., Univ. of Maryland, College Park, MD 20742, USA
Joseph P. McMullin
Affiliation:
SMTO, Steward Observatory, University of Arizona, Tucson, AZ 85721, USA

Abstract

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The condensation of gas-phase molecules onto grain surfaces in cold molecular clouds is widely expected, and the presence of the resultant icy mantles well established, but quantitative study of the gas-phase depletions has not proved easy. This paper reviews the methods for determining depletions and the associated problems. Further observations are critical to testing our expectations for depletions and for the chemical evolution of forming stellar systems.

Type
Star Formation
Information
Symposium - International Astronomical Union , Volume 178: Molecules in Astrophysics: Probes and Processes , 1997 , pp. 183 - 192
Copyright
Copyright © Kluwer 1997 

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