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Comparison of Hα and CaII H and K Spectroheliograms as a Diagnostic Probe
1974
Symposium - International astronomical union
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The line formations of Hα and CaII H and K are compared in order to differentiate the various mechanisms giving rise to observable contrasts in the emergent intensities. Table II summarizes the criteria for distinguishing between horizontal spatial variations in temperature, density, and turbulent velocity.
doi:10.1017/s0074180900068947
fatcat:e7icdlfeores3jzqu7q53skbfm