Astron. Astrophys. 333, L35-L38 (1998)

Acknowledgements

Thanks are due to T. Aikawa and L. Mantegazza for comments and discussions. This research has made use of the McMaster Cepheid Photometry and Radial Velocity Data Archive (http://www.physics.mcmaster.ca/Cepheid).

© European Southern Observatory (ESO) 1998

Online publication: April 20, 1998
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