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Fig. 4


Normalized ratio of Ohmic heating to Alfvénic and turbulent heating (volumetric heating rates) for the field lines of the bright loop set, marked in red in Fig. 2. The lengths of the field lines are normalized to unity. The thick black lines show the average of the ratios for the selected field lines. The dashed lines indicate the average position of the coronal base at log T [K]  = 5.5 for the selected field lines. Both panels show the ratio over a range of four orders of magnitude. See Sect. 4.1.

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