Astron. Astrophys. 331, 193-210 (1998)

Acknowledgements

We thank Jean Guibert and René Chesnel for helpful support in the POSS plates digitization with MAMA at Observatoire de Paris, and Catherine Dougados for useful discussions and permission to use her Monoceros data prior to publication. We also acknowledge comments by the referee Ralph Neuhaüser, which helped to improve the original manuscript. JGH thanks the Service d'Astrophysique du CEA, CE/Saclay, for hospitality. The financial support for JGH during her stay at CE/Saclay has been provided by the Brazilian agencies FAPESP (Proc. No. 92/4663-2) and CNPq (Proc. No. 201447/93-2), and partially by the CIES French fellowship (No. 152194B). EDF is supported by NASA grant NAGW-2120. This work benefited from the SIMBAD database operated by Centre des Données Stellaires (CDS) in Strasbourg.

© European Southern Observatory (ESO) 1998

Online publication: February 4, 1998
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