Spectrophotometric Results from the Copernicus Satellite. I. Instrumentation and Performance

Abstract

view Abstract Citations (298) References (7) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectrophotometric Results from the Copernicus Satellite. I. Instrumentation and Performance Rogerson, J. B. ; Spitzer, L. ; Drake, J. F. ; Dressler, K. ; Jenkins, E. B. ; Morton, D. C. ; York, D. G. Abstract The Princeton telescope-spectrometer on the OAO spacecraft Copernicus scans stellar spectra with a resolution of about 0.05 A between 950 and 1450 A, and twice this in first order between 1650 and 3000A. The pointing during several minutes is steady within 0'!02, and the measured photometric precision in the shorter wavelength range is limited only by the statistics of photon counts, with 14-s counts of about 10 on an unreddened 131 star, mv = 5.0, at 1100 A. In the 165030(X) A wavelength range, phototube noise resulting from cosmic rays makes observations difficult on stars fainter than m = 3.0. Subject headings:instruments - spectra, ultraviolet - spectrophotometry - ultraviolet Publication: The Astrophysical Journal Pub Date: May 1973 DOI: 10.1086/181194 Bibcode: 1973ApJ...181L..97R full text sources ADS | Related Materials (5) Part 2: 1973ApJ...181L.103M Part 3: 1973ApJ...181L.110R Part 4: 1973ApJ...181L.116S Part 5: 1973ApJ...181L.122J Part 6: 1973ApJ...182L...1Y