Astron. Astrophys. 362, 737-745 (2000)

Acknowledgements

AP and IR were supported by the PRODEX programme of ESA. SOHO is a project of international cooperation between ESA and NASA. We would like to thank I. Dammasch and the referee J.G. Doyle for helpful comments.

© European Southern Observatory (ESO) 2000

Online publication: October 24, 2000
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