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Golf: A resonance spectrometer for the observation of solar oscillations I) Numerical model of the sodium cell response

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Abstract

GOLF (Global Oscillations at Low Frequencies) is an instrument to study the line-of-sight velocity of the solar photosphere, to be flown on the SOHO satellite in 1995. It uses a sodium vapour cell in resonance scattering mode, in order to measure the absolute Doppler shift of the solar sodium absorption lines. We have developed a model of the resonance cell performance. We describe here the main characteristics of the model, and report the most important results concerning the performance of the cell and its dependance on temperature.

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Boumier, P., Dame, L. Golf: A resonance spectrometer for the observation of solar oscillations I) Numerical model of the sodium cell response. Exp Astron 4, 87–104 (1993). https://doi.org/10.1007/BF01588347

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