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On the Possible Detection of Solid O2 in Interstellar Grains

Published online by Cambridge University Press:  07 August 2017

P. Ehrenfreund
Affiliation:
Huygens Laboratory Astrophysics, Leiden, The Netherlands Groupe de Physique des Solides, Univ. Paris 7, Paris, France
R. Breukers
Affiliation:
Huygens Laboratory Astrophysics, Leiden, The Netherlands
L. d'Hendecourt
Affiliation:
Groupe de Physique des Solides, Univ. Paris 7, Paris, France
J.M. Greenberg
Affiliation:
Huygens Laboratory Astrophysics, Leiden, The Netherlands

Abstract

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In various models of the chemistry of interstellar grains, solid O2 is formed by accretion as well as by surface reactions. In dense molecular cloud models, at a later stage of evolution of an interstellar grain, solid O2 becomes a major grain mantle constituent at the expense of water ice abundance. If molecular oxygen is embedded in a “dirty” ice” matrix, the forbidden fundamental vibration of O2 at 1550 cm−1 may become observable.

Type
Quiescent Clouds and Regions of Star Formation
Copyright
Copyright © Kluwer 1992 

References

REFERENCES

Breukers, R., thesis, Univ. Leiden (1991)Google Scholar
Grimm, R.J.A., d'Hendecourt, L. (1986), A & A, 167, 161 Google Scholar
Herbst, E., Leung, C.M. (1989), Ap.J. Suppl. 69, 271 Google Scholar
Sandford, S.A., Allamandola, L., Tielens, A.G.G.M., Valero, G.C. (1988), Ap. J. 329, 498 Google Scholar