Astron. Astrophys. 361, 1143-1151 (2000)

Acknowledgements

The authors wish to thank Dr. M. Rapaport for helpful comments and Dr. J. Guibert for his help in finding and measuring the SERC-J plates. We are grateful to Dr. R. Neuhäuser, for his constructive suggestions on this paper. Special thanks are also extended to Mr. W. Monteiro, for his support concerning the observations. A partial financial support from CNPq, FAPESP, PRONEX, CAPES and CNRS is fully acknowledged. This work benefited from SIMBAD database and the Astronomical Data Analysis Center, the last one being operated by the National Astronomical Observatory of Japan.

© European Southern Observatory (ESO) 2000

Online publication: October 10, 2000
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