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16 November 1982 Low Noise Spectrometer For The Daily Measurement Of Solar Chromospheric Flux
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Abstract
A "sun as a star" spectrometer is described which measures the variability of the core of Ca II 3933Å relative to the nearby continuum at 3953Å. The system is capable of 0.001% photometry but differential atmospheric extinction over the 20Å bandpass limits detectivity to 0.02%.
© (1982) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
W. C. Livingston, Charles Mahaffey, and B. Ye "Low Noise Spectrometer For The Daily Measurement Of Solar Chromospheric Flux", Proc. SPIE 0331, Instrumentation in Astronomy IV, (16 November 1982); https://doi.org/10.1117/12.933462
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