Fig. 2
Image of the Sun taken at three different wavelengths on December 18, 2015, at the same time as Fig. 1. Coronal bright points are denoted with blue boxes which are at the same positions in all three images. Top left, a: SDO AIA 19.3 nm filtergram. Top right, b: NSO SOLIS He I 1083 nm core filtergram. Bottom, c: ALMA intensity map at 248 GHz (λ = 1.21 mm).
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