Astron. Astrophys. 353, 583-597 (2000)

Acknowledgements

We are dedicating this paper, which is based on data obtained with the IRAM interferometer on Plateau de Bure, to the victims, and their families, of the tragic accident on July 1st, 1999, of the tlphrique that gave access to the Plateau de Bure observatory. We are very grateful to F. Schöier for performing the radiative transfer analysis of the centre and the shell emission. We are also grateful to the referee, Dr. N. Trams, whose constructive comments lead to a better presentation of our results. Financial support from the Swedish Natural Science Research Council (NFR) is acknowledged. JHB acknowledges support from the U.S. National Science Foundation through grant AST-9618523.

© European Southern Observatory (ESO) 2000

Online publication: December 17, 1999
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