Abstract
Spatially well resolved prominence spectra of the three lines Ca+ K, Hβ, and Ca+ 8542 are analysed. It is confirmed that the branching in the emission relations of Ca+ versus Hβ correlates with the magnitude of non-thermal (turbulent) broadening.
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Stellmacher, G., Wiehr, E. On the branching in the emission relations of Ca+ in prominences. Sol Phys 71, 299–309 (1981). https://doi.org/10.1007/BF00167553
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DOI: https://doi.org/10.1007/BF00167553