Institution: | Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia;Research School of Astronomy and Astrophysics, Mount Stromlo Observatory, Cotter Road, Weston, ACT 2611, Australia;European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching b. München, Germany;H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL |