1. W. M. Keck Observatory (United States)
2. Univ. of Hawaii (United States)
3. California Institute of Technology (United States)
4. Arcetri Astrophysical Observatory (Italy)
5. Aix Marseille Univ., CNRS, Lab. d'Astrophysique de Marseille (France)
6. Subaru Telescope, National Astronomical Observatory of Japan (United States)
7. Australian National Univ. (Australia)