| Affiliation: |
| AA(NASA, Goddard Space Flight Center, Laboratory for High Energy Astrophysics, Greenbelt; Maryland, University, College Park, Md.), AB(NASA, Goddard Space Flight Center, Laboratory for High Energy Astrophysics, Greenbelt, Md.), AC(NASA, Goddard Space Flight Center, Laboratory for High Energy Astrophysics, Greenbelt, Md.), AD(NASA, Goddard Space Flight Center, Laboratory for High Energy Astrophysics, Greenbelt, Md.) |
| NASA/STI Keywords: |
| QUASARS, STELLAR RADIATION, STELLAR SPECTRA, X RAY SOURCES, X RAY SPECTRA, ENERGY SPECTRA, PROPORTIONAL COUNTERS, RADIO EMISSION, THERMAL RADIATION |