Affiliation: | Max-Planck Institut für Astrophysik, D-85748 Garching, Germany;Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA;Institut d'Astrophysique du CNRS, 98 bis Boulevard Arago, F-75014 Paris, France;Apache Point Observatory, PO Box 59, Sunspot, NM 88349, USA;Department of Physics, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15232, USA;Department of Astronomy, University of Chicago, 5640 South Ellis Ave, Chicago, IL 60637, USA |