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UV penetrated clumpy molecular cloud cores

Published online by Cambridge University Press:  03 August 2017

Jürgen Stutzki ,
Reinhard Genzel ,
Urs Graf ,
Andrew I. Harris ,
Amiel Sternberg  and
Rolf Güsten
Jürgen Stutzki
Affiliation:
I. Physikalisches Institut der Universität zu Köln, Zülpicher Straße 77, D-5000 Köln 41, Fed. Rep. of Germany
Reinhard Genzel
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046 Garching b. München, Fed. Rep. of Germany
Urs Graf
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046 Garching b. München, Fed. Rep. of Germany
Andrew I. Harris
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046 Garching b. München, Fed. Rep. of Germany
Amiel Sternberg
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046 Garching b. München, Fed. Rep. of Germany
Rolf Güsten
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Fed. Rep. of Germany

Abstract

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Recent observations of sub-mm and far-IR atomic fine structure and molecular rotational lines give evidence that due to the clumpiness of the molecular cloud cores the UV radiation from newly formed stars affects a very large fraction of the cloud material. Direct observations of the clumpy structure in M17 SW allow to derive several parameters of the clump distribution, in particular the clump mass spectrum and the volume filling factor. Implications of these results in regard to star formation are shortly discussed.

Type
Small Scale Structure
Information
Symposium - International Astronomical Union , Volume 147: Fragmentation of Molecular Clouds and Star Formation , 1991 , pp. 235 - 244
Copyright
Copyright © Kluwer 1991 

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