| Affiliation: |
| AA(Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027.), AB(National Radio Astronomy Observatory, P.O. Box 2, Green Bank, WV 24944.), AC(University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL, UK.), AD(Department of Astronomy, University of California, 601 Campbell Hall, Berkeley, CA 94720-3411.), AE(Department of Physics, McGill University, Montreal, QC H3A 2T8, Canada.; Center for Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139.), AF(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany.), AG(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany.), AH(University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL, UK.), AI(University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL, UK.), AJ(Universities Space Research Association/NASA Goddard Space Flight Center, Code 662, Greenbelt, MD 20771.), AK(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany.) |