Astron. Astrophys. 336, 648-653 (1998)

Acknowledgements

We would like to thank the CIRCUS team of the Observatoire de Paris, and especially F. Lacombe and S. Pau for their assistance during the observations. We are grateful to our referee Massimo Robberto for his helpful comments. We also thank Bruno Lopez and John Tully for their reading of the manuscript. This research has made used of the Simbad database, operated at CDS, Strasbourg, France.

© European Southern Observatory (ESO) 1998

Online publication: July 20, 1998
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