Abstract
We use NLTE modelling of the alkali resonance lines and of C I and 0 I high-excitation multiplets to test their quality as temperature diagnostics of the upper photosphere, in the context of Avrett’s NLTE recovery of the LTE Holweger-Müller model below the temperature minimum and Ayres’ bifurcation into hot and cool components above the temperature minimum.
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Shchukina, N.G., Shcherbina, T.G., Rutten, R.J. (1990). Temperature Diagnostics of the Upper Photosphere. In: Stenflo, J.O. (eds) Solar Photosphere: Structure, Convection, and Magnetic Fields. International Astronomical Union, vol 138. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1061-4_3
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DOI: https://doi.org/10.1007/978-94-009-1061-4_3
Publisher Name: Springer, Dordrecht
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