| Institution: | National Observatory of Athens, I. Metaxa &B. Pavlou, Palaia Penteli, 15236, Athens, Greece; Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ; Physics Department, University of Durham, South Road, Durham DH1 3LE; Department of Physics and Astronomy, The University of Leicester, Leicester LE1 7RH; Department of Physics, Carnegie Mellon University, Wean Hall, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA; Anglo-Australian Observatory, PO Box 296, Epping NSW 2121, Australia |
