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CO and PAH+/PAH0/VSG maps in external galaxies

Published online by Cambridge University Press:  04 October 2008

C. Kramer ,
S. Aalto ,
R. Simon ,
E. Bayet ,
O. Berné ,
C. Joblin ,
M. Gerin ,
S. García-Burillo  and
A. Fuente
E. Bayet
Affiliation:
Department of Physics and Astronomy of University College London, Gower Street, London W1W 6HD, UK
O. Berné
Affiliation:
Centre d'Étude Spatiale des Rayonnements, 9 Av. du Colonel Roche, BP. 44346, 31028 Toulouse Cedex 4, France
C. Joblin
Affiliation:
Centre d'Étude Spatiale des Rayonnements, 9 Av. du Colonel Roche, BP. 44346, 31028 Toulouse Cedex 4, France
M. Gerin
Affiliation:
Laboratoire de Radioastronomie de L'École Normale Supérieure-LERMA-Observatoire de Paris, 24 rue Lhomond, 75231 Paris Cedex 05, France
S. García-Burillo
Affiliation:
Observatorio Astronómico Nacional, Observatorio de Madrid, Alfonso XII3, 28014 Madrid, Spain
A. Fuente
Affiliation:
Observatorio Astronómico Nacional, Observatorio de Madrid, Alfonso XII3, 28014 Madrid, Spain
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Abstract

We have performed a comparison between the molecular gas emission and the mid IR dust component emission distributions in a sample of nearby galaxies. We have compared CO maps at high spatial resolution, from Wilson et al. (2000), Bayet et al. (2004, 2006) and from Kramer et al. (2005), with the emission distributions of ionised and neutral PAHs (PAH+; PAH0) and of very small grains (VSGs), obtained using signal processing methods as explained in Berné et al. (2007a) and Rapacioli et al. (2005).In M 82, we have also compared the dust emission maps with dense gas tracer maps (HCO and H13CO+ data from García-Burillo et al. 2002) as well as with shock tracer maps (SiO data from García-Burillo et al. 2001).

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 31: Far-Infrared Workshop 2007 , 2008 , pp. 169 - 171
Copyright
© EAS, EDP Sciences, 2008

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References

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