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CH+ in Shocks, Cloud-Intercloud Interfaces, and Dense Photodissociation Regions

Published online by Cambridge University Press:  07 August 2017

W W Duley ,
T W Hartquist ,
A. Sternberg ,
R. Wagenblast  and
D A Williams
W W Duley
Affiliation:
Physics Department, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
T W Hartquist
Affiliation:
Max Planck Institute for Physics and Astrophysics, Institute for Extraterrestrial Physics, 8046 Garching, Germany
A. Sternberg
Affiliation:
Department of Astronomy, Tel Aviv University, Tel Aviv, Israel
R. Wagenblast
Affiliation:
Department of Mathematics, UMIST, PO Box 88, Manchester M60 1QD, UK
D A Williams
Affiliation:
Department of Mathematics, UMIST, PO Box 88, Manchester M60 1QD, UK

Extract

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Substantial CH+ abundances are found in at least three types of environment (Lambert and Danks, 1985): atomic regions with little H2, N(CH+) ~ 1012 cm−2; diffuse clouds such as that toward ζ Oph, N(CH+) ~ 1013 cm−2; reddened (2 ≲ Av ≲ 4) lines of sight to bright stars N(CH+) ~ 1014 cm−2. We explore the view that several different mechanisms operate.

Type
Chemistry of Interface Regions
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 309 - 310
Copyright
Copyright © Kluwer 1992 

References

REFERENCES

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