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Star Formation Feedback on the ISM Properties

Published online by Cambridge University Press:  21 April 2007

E. Emsellem ,
H. Wozniak ,
G. Massacrier ,
J.-F. Gonzalez ,
J. Devriendt ,
N. Champavert ,
E. Bayet ,
M. Gerin ,
T.G. Phillips  and
J. Le Bourlot
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E. Bayet
Affiliation:
Laboratoire de l'Univers et de ses THéories (LUTH), Observatoire de Paris-Meudon, Bât. 18 (LAM), Place J. Janssen, 92195 Meudon, France
M. Gerin
Affiliation:
Laboratoire de Radioastronomie (LRA), Observatoire de Paris and École Normale Supérieure, 24 rue Lhomond, 75005 Paris, France
T.G. Phillips
Affiliation:
California Institute of Technology, Downs Laboratory of Physics 320-47, Pasadena, CA 91125, USA
J. Le Bourlot
Affiliation:
Laboratoire de l'Univers et de ses THéories (LUTH), Observatoire de Paris-Meudon, Bât. 18 (LAM), Place J. Janssen, 92195 Meudon, France
F. Le Petit
Affiliation:
Laboratoire de l'Univers et de ses THéories (LUTH), Observatoire de Paris-Meudon, Bât. 18 (LAM), Place J. Janssen, 92195 Meudon, France
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Abstract

We observed nearby (D < 10 Mpc)galaxies (Henize 2-10, IC 10, IC 342, M 83, NGC 253 and NGC 6946) inthe rotational lines of carbon monoxide CO and in the fine-structuretransitions of atomic carbon [CI] with the Caltech SubmillimeterObservatory (CSO). Using our new data, those from the literature and theLVG and PDR models, we derived the physical properties of the warmand dense molecular gas (kinetic temperature, UV radiation field, gasdensity...) in each nucleus. We predicted lines intensities for the12CO(5-4), 12CO(7-6) and 12CO(8-7) lines which are,even now, still difficult or impossible to detect from the ground butwill become available in few years with ALMA and HIFI or PACS, on boardthe Herschel satellite. Studying the ISM of nearby galaxies, we providea first step in the understanding of the ISM processes in more distantgalaxies.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 24: CRAL-2006. Chemodynamics: From First Stars to Local Galaxies , 2007 , pp. 279 - 280
Copyright
© EAS, EDP Sciences, 2007

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