Helpful suggestions on the manuscript have been given by Luca Bertello, Carl Henney, Alexander Kosovichev and Gérard Grec. The acquisition and analysis of ground-based data at the 150-foot solar tower telescope at the Mt. Wilson Observatory is supported by NASA both through the Co-Investigator programs for the GOLF and MDI experiments on SOHO and through the Supporting Research and Technology program. Additional support for the daily operations at this facility have been provided by the Office of Naval Research and the National Science Foundation. The GOLF data is obtained from an instrument built by a consortium of institutes in France and Spain: Institut d'Astrophysique Spatiale, Orsay, France; Observatoire de la Côte d'Azur, Nice, France; Observatoire de l'Université Bordeaux I, Floirac, France; Service d'Astrophysique, Saclay, France and Instituto de Astrofísica de Canarias, Tenerife, Spain. These institutes are supported by a large number of scientific Co-Investigators drawn from many countries. SOHO is a mission of international co-operation between ESA and NASA.
© European Southern Observatory (ESO) 2000
Online publication: January 29, 2001