Mariner 9 Ultraviolet Spectrometer Experiment: Stellar Observations

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Science  21 Jan 1972:
Vol. 175, Issue 4019, pp. 321-322
DOI: 10.1126/science.175.4019.321


Photoelectric spectra have been obtained for a number of early-type stars in the 1100- to 2000-angstrom region with the Mariner 9 ultraviolet spectrometer. The resonance lines of H I, Si IV, and C IV are easily identified, as are features due to C II, C III, Si III, Fe II, N IV. The absolute energy distribution derived from the data lie about 20 percent below those of OAO-2 in the 1200- to 2000-angstrom region.