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Heating the interstellar medium of Spiral Galaxies via PhotonDominated Regions

Published online by Cambridge University Press:  04 October 2008

C. Kramer ,
S. Aalto ,
R. Simon ,
A. Schulz ,
D. Muders  and
C. Henkel
A. Schulz
Affiliation:
Argelander-Institut für Astronomie, Universität Bonn, Germany Institut für Physik und ihre Didaktik, Universität Köln, Germany
D. Muders
Affiliation:
MPI für Radioastronomie, Bonn, Germany
C. Henkel
Affiliation:
MPI für Radioastronomie, Bonn, Germany
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Abstract

For three prototypical galaxies (IC 342, M 82, Antennae), we successfully applied PDR models to explain observed CO line ratios simultaneously with atomic fine structure lines. The model well confines the physical parameters of the gas, which is extremely clumped to allow the UV radiation to penetrate through the molecular clouds over large distances.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 31: Far-Infrared Workshop 2007 , 2008 , pp. 201 - 204
Copyright
© EAS, EDP Sciences, 2008

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