Fig. 2
Hα and RHESSI HXR images (reconstructed using the PIXON method, detectors: 3, 4, 5, 6, 8, 9) co-aligned as described in the text. North is towards the top. The RHESSI images are shown as contours (at 50%, 70%, and 90% of maximum of signal). Panels: a), b), c) C8.3 flare – 2005 July 12, 08:00:52–08:00:56 UT (RHESSI 20–50 keV contours), 08:00:54 UT Hα image. Panels: d), e), f) C1.2 flare – 2003 July 16, 16:03:44–16:03:52 UT (RHESSI 12–25 keV contours), 16:03:46 UT Hα image. The dimensions of the areas shown are 128 × 128 arcsec2.
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