¹ Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510
² Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195
³ Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544
⁴ Center for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218-2686
⁵ Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637
⁶ Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213
⁷ Center for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003
⁸ Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349
⁹ Department of Astronomy, University of Illinois, 1002 West Green Street, Urbana, IL 61801
¹⁰ Institut d'Estudis Espacials de Catalunya/CSIC, Gran Capitá 2-4, E-08034 Barcelona, Spain
¹¹ Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260
¹² Department of Physics, Eötvös Loránd University, Budapest, Pf. 32, H-1518 Budapest, Hungary
¹³ Institute of Astronomy and Research Center for the Early Universe, School of Science, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
¹⁴ Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721
¹⁵ Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218
¹⁶ Institute for Cosmic Ray Research, University of Tokyo, 5-1-5 Kashiwa, Kashiwa City, Chiba 277-8582, Japan
¹⁷ Microsoft Research, 455 Market Street, No. 1690, San Francisco, CA 94105
¹⁸ Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany
¹⁹ Lucent Technologies, 2000 Lucent Lane, Naperville, IL 60566
²⁰ Departamento de Astronomía y Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile
²¹ US Naval Observatory, Flagstaff Station, P.O. Box 1149, Flagstaff, AZ 86002
²² Department of Astronomy, MSC 4500, New Mexico State University, P.O. Box 30001, Department 4500, Las Cruces, NM 88003
²³ US Naval Observatory, 3540 Massachusetts Avenue, NW, Washington, DC 20392-5420
²⁴ Remote Sensing Division, Code 7215, Naval Research Laboratory, 4555 Overlook Avenue, SW, Washington, DC 20375
²⁵ National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
²⁶ Astronomical Institute, Tohoku University, Aramaki, Aoba, Sendai 980-8578, Japan
²⁷ Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545
²⁸ Max-Planck-Institut für Astrophysik, Karl Schwarzschildstrasse 1, D-85748 Garching, Germany
²⁹ Obserwatorium Astronomiczne na Suhorze, Akademia Pedagogiczna w Krakowie, ulica Podchorążych 2, PL-30-084 Kraków, Poland
³⁰ CERN, IT Division, CH-1211 Geneva 23, Switzerland
³¹ Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637
³² Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720-8160
³³ Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QJ, UK
³⁴ Department of Physics, University of Michigan, 500 East University Avenue, Ann Arbor, MI 48109
³⁵ Institute for Astronomy, Royal Observatory, University of Edinburg, Blackford Hill, Edinburgh EH9 3HJ, UK
³⁶ Department of Physics, University of Pennsylvania, Philadelphia, PA 19104
³⁷ Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180-3590
³⁸ Lucent Technologies, 2701 Lucent Lane, Lisle, IL 60532
³⁹ Department of Astronomy and Research Center for the Early Universe, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
⁴⁰ Joseph Henry Laboratories, Princeton University, Princeton, NJ 08544
⁴¹ School of Natural Sciences, Institute for Advanced Study, Einstein Drive, Princeton, NJ 08540
⁴² Department of Physics, Rochester Institute of Technology, 85 Lomb Memorial Drive, Rochester, NY 14623-5603
⁴³ Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802
⁴⁴ Department of Physics, University of Zagreb, Bijenička cesta 32, HR-10000 Zagreb, Croatia
⁴⁵ Institute for Astronomy, 2680 Woodlawn Road, Honolulu, HI 96822
⁴⁶ Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071
⁴⁷ Department of Physics, Drexel University, Philadelphia, PA 19104
⁴⁸ Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse 1, D-85741 Garching, Germany
⁴⁹ Department of Astronomy, Ohio State University, Columbus, OH 43210