| Institution: | Sterrewacht Leiden, Postbus 9513, 2300 RA Leiden, the Netherlands;Institut de Physique Nucléaire de Lyon, 69622 Villeurbanne, France;Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA;CRAL-Observatoire, 9 Avenue Charles-André, 69230 Saint-Genis-Laval, France;Columbia Astrophysics Laboratory, 550 West 120th Street, 1027 Pupin Hall, Mail Code 5247, New York, NY 10027, USA;Physics Department, University of Durham, South Road, Durham DH1 3LE;Gemini Observatory, Casilla 603, La Serena, Chile |
