Astron. Astrophys. 345, 884-904 (1999)

Acknowledgements

We thank the staffs of the Canada-France-Hawaii 3.6m, the McDonald 2.1m, the La Palma Isaak Newton 2.5m, the OHP 1.93m, the Xinglong 2.16m and the Ritter Observatory 1m telescopes for their efficient assistance during the observations. We acknowledge financial support from the "Institut des Sciences de l'Univers" (INSU/CNRS), and the CNRS "Groupements de Recherche" "Magnétodynamique solaire et stellaire", "Physique de l'intérieur des étoiles et des planètes géantes", and "Milieux circumstellaires". Finally, we thank our referee, Dr. Jacques Babel, for very useful comments and suggestions.

© European Southern Observatory (ESO) 1999

Online publication: April 28, 1999
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