Astron. Astrophys. 324, 41-50 (1997)

Acknowledgements

Data from the literature were obtained with the Lyon Meudon Extragalactic database (LEDA), supplied by the LEDA team at CRAL-Observatoire de Lyon (France). We thank Bertrand Lefloch for assistance at the radiotelescope, and Raphaïl Moreno for helpful comments on the paper. Remarks from an anonymous referee helped us provide a more quantitative discussion of our molecular line observations. We also thank the staff of Observatoire du Pic du Midi and of Observatoire de Haute-Provence for assistance at the telescope. H.W. thanks the French Academy of Sciences for financial support.

© European Southern Observatory (ESO) 1997

Online publication: May 26, 1998

helpdesk.link@springer.de