Published 1990 | public
Book Section - Chapter

The self-similar structure of nolecular clouds

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Abstract

Information on the structure of the interstellar clouds is contained in both spatial maps and spectral profiles of molecular gas emission lines. In this paper, we show that non gaussian aspects of line profiles are found at all scales. This excess wing emission is shown to be generated in dense gas. From a study of the moments of the lines as a function of scale size, we deduce a break-down in the exactness of self-similarity in the hierarchical structure of the interstellar clouds.

Additional Information

© Springer Science+Business Media Dordrecht 1990. This work was supported by NSF grant AST83-11849. We thank the crew of the CSO for their unfailing support and R.E. Miller for the SIS junctions used in the receiver.

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August 19, 2023
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January 15, 2024