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Astron. Astrophys. 327, 333-336

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Collapse spectra of cloud turbulence

X.Q. Li1,2 and H. Zhang3

1 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


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)

© European Southern Observatory (ESO) 1997

Online publication: October 1, 1997
Last change: April 8, 1998