| Institution: | Astrophysics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AW;Institute of Astronomy &Astrophysics, National Observatory of Athens, I. Metaxa B. Pavlou, Penteli, 15236, Athens, Greece;Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USA;Kitt Peak National Observatory, 950 N. Cherry Avenue, Tucson, AZ 85719, USA;Department of Physics, University of Crete, 71 003, Heraklion, Greece;IESL, FORTH-Hellas, 71 110, Heraklion, Crete, Greece |
