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Cambridge University Press (CUP), Proceedings of the International Astronomical Union, IAUS223(2004)
DOI: 10.1017/s1743921304005423
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The sensitivity of three lines to AR
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Abstract
We study the sensitivity to AR of three photospheric lines, comparing experimental results, from THEMIS observations, with spectral synthesis, demonstrating the inappropriateness of using these lines as indicators of quiet sun modifications, because their variations in the active regions. We try to reconstruct the cyclic lines behavior.