Fig. 4.

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Thermal and nonthermal X-ray sources alongside chromospheric EUV observations. Shown in the background are STEREO-A EUVI 304 Å images transformed to the STIX/Solar Orbiter perspective. Overplotted are contours (30, 50, 70, 90% of the maximum in each image) of STIX spectral images in the 6–10 keV (green) and 15–25 keV (blue) energy bands. A movie version is available online.

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