Institution: | 1. Department of Physics, Kyoto University, Kitashirakawa, Sakyou-ku, Kyoto 606-01, Japan;1. Department of Physics, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606-01, Japan;2. Department of Physics, Nagoya University, Furo-cho, Chikusa, Nagoya 466-01, Japan;1. Department of Physics, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, PA 15213 USA;2. Anglo-Australian Observatory, Australia;3. University of Durham, UK;4. University of Leicester, UK;5. National Observatory of Athens, Greece;6. Royal Observatory, Edinburgh, UK |