Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...271..143d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 271, Aug. 1, 1983, p. 143-160.
Astronomy and Astrophysics
Astrophysics
93
Astronomical Spectroscopy, Gravitational Fields, Interstellar Matter, Molecular Clouds, Nebulae, Abundance, Astronomical Models, Emission Spectra, Line Spectra, Molecular Spectroscopy, Optical Emission Spectroscopy, Spectral Line Width, Static Stability
Scientific paper
Bok globules are the simplest unit structures in the dense interstellar medium. If observations suggest that turbulence in a given cloud may be supersonic, it becomes exceedingly difficult to specify with any precision hydrodynamic model states. The present investigation reports results of a comprehensive radio and optical study of a Bok globule for which these difficulties are largely absent. The cloud lies near the extreme end of the interstellar cloud mass spectrum, having a total mass of approximately ten solar masses. The most striking aspect of the study is the finding that any turbulent motions within the globule are subsonic. This situation afforded an opportunity to study a self-gravitating system freed of many of the ambiguities usually associated with stochastic hydrodynamic states.
Clemens Dan P.
Dickman Robert L.
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