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New Constraints on Diffuse Interstellar Cloud Models. The Model of the ζ Ophiuchi Cloud Revisited

Published online by Cambridge University Press:  04 August 2017

Y. P. Viala ,
H. Abgrall  and
E. Roueff
Y. P. Viala
Affiliation:
Observatoire de Meudon, 92195 Meudon Principal Cedex, France
H. Abgrall
Affiliation:
Observatoire de Meudon, 92195 Meudon Principal Cedex, France
E. Roueff
Affiliation:
Observatoire de Meudon, 92195 Meudon Principal Cedex, France

Abstract

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Using most recent observational data as well as new experimental and theoretical determinations of various reaction rate coefficients, we present a model of the ζ θphiuchus cloud. the radiative transfer equation is solved in a plane parallel geometry taking into account absorptions by both the gas and by dust. A part certain atypical molecules (CH+, CN) and neutral iron, we are able to reproduce the observed column densities of neutral atoms, and molecular species, including the rotational populations of molecular Hydrogen with a two shell model. the concentrations of other simple molecules are predicted.

Type
Interstellar Medium
Information
Symposium - International Astronomical Union , Volume 120: Astrochemistry , 1987 , pp. 227 - 233
Copyright
Copyright © Reidel 1987 

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