Astron. Astrophys. 319, 617-629 (1997)

Acknowledgements

We would like to thank S. Zhekov, who kindly provided part of his observing time on Nov 25, 1992 and assisted during the observations. No observations would have been obtained without the cooperation of the staff of BNAO, Rozhen. The authors thank R. Wegmann for sending model velocities and for numerous discussions concerning them. We are grateful to H. Spinrad and coworkers for additional information on their velocity measurements. We also thank M. A'Hearn and U. Fink for sending papers prior to publication. T. B. acknowledges the hospitality of the Max-Planck-Gesellschaft, which allowed him to work several weeks at the MPAe, where this study has been started. This work was supported in part by the Bulgarian National Science Foundation under contract F-482 with the Ministry of Science and Education. Comments by an anonymous referee led to a significant improvement of the paper.

© European Southern Observatory (ESO) 1997

Online publication: July 3, 1998
helpdesk@link.springer.de