| Affiliation: |
| AA(Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802.; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544.), AB(Princeton University Observatory, Peyton Hall, Princeton, NJ 08544.; Departamento de Astronomía y Astrofísica, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile.), AC(Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260.), AD(Princeton University Observatory, Peyton Hall, Princeton, NJ 08544.), AE(Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802.), AF(Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802.), AG(Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802.), AH(Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637.; Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637.), AI(Princeton University Observatory, Peyton Hall, Princeton, NJ 08544.), AJ(Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721.), AK(Princeton University Observatory, Peyton Hall, Princeton, NJ 08544.), AL(Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349.), AM(Department of Physics of Complex Systems, Eötvös Loránd University, Budapest, Pf. 32, H-1518 Budapest, Hungary.; Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218-2686.), AN(Department of Physics of Complex Systems, Eötvös Loránd University, Budapest, Pf. 32, H-1518 Budapest, Hungary.; Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218-2686.), AO(Department of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15232.) |