Time evolution of the ALMA brightenings. The panels show temperature and microturbulence averaged over the range (log τ = [−5.8, −4.7]) inferred from IRIS NUV spectra alone (top two rows), and from IRIS+ALMA inversions (bottom two rows) evolving in time from the left to the right. We superimpose the Tb[1.25 mm] contour levels of 9000 K (dashed) and 10 000 K (solid) in all panels. The range in the color bars is the same in two inversion schemes to emphasize the differences in contrast.
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