Hostname: page-component-77c89778f8-m42fx Total loading time: 0 Render date: 2024-07-20T09:09:39.727Z Has data issue: false hasContentIssue false
  • English
  • Français

HCN and HCO+ in IR Bright Galaxies

Published online by Cambridge University Press:  03 August 2017

Nguyen-Q-Rieu ,
J. Jackson ,
C. Henkel  and
R. Mauersberger
Nguyen-Q-Rieu
Affiliation:
Observatoire de Paris-Meudon, F-92195 Meudon Cedex, France
J. Jackson
Affiliation:
Max-Planck-Institut für Extraterrestrische Physik, D-8046 Garching, Germany
C. Henkel
Affiliation:
Observatoire de Paris-Meudon, F-92195 Meudon Cedex, France Max-Planck-Institut für Radioastronomie, D-5300 Bonn, Germany
R. Mauersberger
Affiliation:
Max-Planck-Institut für Radioastronomie, D-5300 Bonn, Germany

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We report the preliminary results of a search for HCN and HCO+ in the nucleus of 14 IR bright galaxies. The line intensity ratio HCN/HCO+ is of the order of or larger than unity, except for M82 which has a line ratio of 0.5. The line ratios are discussed in terms of a model of chemistry of dense interstellar clouds. There is a correlation between the HCN and HCO+ line intensities and that of CO.

Type
IX- Galaxy Nuclei
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 299 - 301
Copyright
Copyright © Kluwer 1991 

References

Elitzur, M. 1983, Ap.J. 267, 174 Google Scholar
Ishizuki, S. et al. 1990, Nature 344, 224 Google Scholar
Langer, W.D., and Graedel, T.E. 1989, Ap.J. Suppl. 69, 241 Google Scholar
Lo, K.Y. et al. 1984, Ap.J. 282, L59 Google Scholar
Nguyen-Q-Rieu, , Nakai, N., and Jackson, J.M. 1989, Astr. Ap. 220, 57 Google Scholar
Stacey, G.J., Genzel, R., Lugten, J.B., and Townes, C.H. 1988, Proc. Phys. and Chem. of Interst. Mol. Clouds, Zermatt, eds. Winnerwisser, and Armstrong, Google Scholar
Wild, W. et al. 1990, in preparation Google Scholar
Young, J.S., and Sanders, D.B. 1986, Ap.J. 302, 680 Google Scholar