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The PDR structure of the Monoceros Ridgein the Rosette Molecular Cloud

Published online by Cambridge University Press:  04 October 2008

C. Kramer ,
S. Aalto ,
R. Simon ,
R. Simon ,
N. Schneider ,
C. Kramer ,
V. Ossenkopf  and
M. Röllig
R. Simon
Affiliation:
KOSMA, I. Physikalisches Institut, Universität zu Köln, Germany
N. Schneider
Affiliation:
CEA/Saclay, Gif-sur-Yvette, France
C. Kramer
Affiliation:
KOSMA, I. Physikalisches Institut, Universität zu Köln, Germany
V. Ossenkopf
Affiliation:
KOSMA, SRON National Institute for Space Research, Groningen, The Netherlands
M. Röllig
Affiliation:
KOSMA, Argelander Institut für Astronomie, Universität Bonn, Germany
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Abstract

We present spectral line observations towards the Monoceros PDR in Rosette in context with optical (DSS), far-infrared (C+, KAO), and mid-infrared (Spitzer) imaging of the region. The new data include maps in CO isotopomeric lines (IRAM 30 m, APEX, and NANTEN2) and cuts through the interface in a variety of chemical tracers and transitions: HCN, HNC, HCO+, CN, CCH, and CS, in some cases including rarer isotopomers (IRAM 30 m and APEX). Our goal is to study, and possibly resolve, the temperature, chemical, and density structure in the clumpy PDR/molecular cloud transition. As a first results, we do find evidence for a layered structure perpendicular to the impinging UV radiation in selected chemical and excitational tracers.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 31: Far-Infrared Workshop 2007 , 2008 , pp. 205 - 207
Copyright
© EAS, EDP Sciences, 2008

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References

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