Figure 4 from ALMA Discovery of Solar Umbral Brightness Enhancement at λ = 3 mm

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ALMA Discovery of Solar Umbral Brightness Enhancement at λ = 3 mm

Authors: Kazumasa Iwai, Maria Loukitcheva, Masumi Shimojo, Sami K. Solanki, and Stephen M. White

2017 The Astrophysical Journal Letters 841 L20.

Provider: AAS Journals

Caption: Figure 4.

1600 Å images observed by AIA at (a) 18:23, (b) 18:28, (c) 18:33, and (d) 18:41 on 2015 December 16. 1600 Å images in (a) and (d) are shifted to cancel the solar differential rotation. The overlaid color contours indicate the radio brightness temperature at 3 mm observed by ALMA at 18:32 (see Figure 1(d)).

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