Astron. Astrophys. 327, 333-336 (1997)

Collapse spectra of cloud turbulence

X.Q. Li ^{1, 2} and H. Zhang <sup>3

1</sup> CCAST(World Laboratory), P.O.Box 8730, Beijing, P.R.China
² Dept.of Physics,Nanjing Normal University, Nanjing 210097, P.R.China
³ Purple Mountain Observatory, Academia Sinica, Nanjing 210008, P.R.China

Received 18 October 1996 / Accepted 27 January 1997

Abstract

The collapse spectra of cloud turbulence are obtained from the governing equations of the self-gravitating system. The spectra can be used to explain the observed scaling behaviour of the internal velocity dispersions and macrostructural density inhomogeneity in molecular clouds.

Key words: hydrodynamics turbulence ISM: clouds

Send offprint requests to: H.Zhang (the third address above)

Contents

• 1. Introduction
• 2. Basic governing equations
• 3. Self-similar collapse solution
• 4. Discussion and conclusions
• Acknowledgements
• References

© European Southern Observatory (ESO) 1997

Online publication: April 8, 1998
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