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Observations of Diffuse and Translucent Clouds

Published online by Cambridge University Press:  07 August 2017

Philippe Crane
Philippe Crane*
Affiliation:
European Southern Observatory Garching, Germany

Abstract

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Observations of interstellar CN, CH, and CH+ in diffuse and translucent clouds obtained with a spectral resolution of more the 500,000 are reported. First results from a survey of CH and CH+ are discussed. The CH+ isotopic ratio has been determined to be 68±5 toward ζ Oph and a component of 12CH+ has been found with a velocity width of 15 km s−1. A review of the rotational excitation temperature of interstellar CN and its implications is given.

Type
Diffuse, Translucent and High-Latitude Clouds
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 127 - 132
Copyright
Copyright © Kluwer 1992 

References

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