| Affiliation: |
| AA(; Department of Physics and Center for Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139; , .; Current address: Therma-Wave, Inc., 1250 Reliance Way, Fremont, CA 94539.), AB(; Department of Physics and Center for Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139; , .; Department of Physics, Rutherford Physics Building, McGill University, 3600 University Street, Montreal, QC H3A 2T8, Canada; .; Alfred P. Sloan Research Fellow.), AC(; Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027; .), AD(; Department of Physics and Center for Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139; , .; Hubble Fellow.), AE(; Department of Physics and Center for Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139; , .; Current address: Management and Data Systems Division, Lockheed Martin Corporation, P.O. Box 8048, Philadelphia, PA 19101; .) |