Astron. Astrophys. 339, 822-830 (1998)

Acknowledgements

We thank Drs. D.A. Bohlender and J.D. Landstreet for providing us with their unpublished Reticon spectra of CU Vir, and Prof. A. Cherepaschuk for his useful discussions on the possible mechanisms of the period change. D.M.P. is grateful for the assistance in data reductions of undergraduate students D. Hogge, W. Huggins, and A. Fuller. Her research was supported in part by NSF grants AST86-16362, AST91-15114 and AST95-28596, for which UNLV is a subcontractor. T.R. thanks the Russian Foundation for Basic Research for the financial support by the grant No.95-02-06359. This work was supported by the Digital Equipment Corp. (European External Research Program, project STARPULS ) with computer hardware, and funded by by the Fonds zur Foerderung der wissenschaftlichen Forschung (project , working group Asteroseismology-AMS).

© European Southern Observatory (ESO) 1998

Online publication: October 22, 1998
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