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We present an implementation of the extended Knox-Thompson (EKT) speckle reconstruction algorithm dedicated to solar observations. EKT speckle imaging yields nearly diffraction-limited images from bursts of short exposure solar observations under a wide range of seeing conditions. Our implementation supports field dependent amplitude calibration to permit analyzing data obtained with a partially compensating...
We investigate an example of flare having the shape of a long, bright filament in soft X-rays (SXR). Another characteristic feature of the flare and of other similar flares is that a few emission kernels, best seen in hard X-rays (HXR), develop along the filament. The kernels are new sites of the flare energy release. It is shown that the kernels develop at the crossings of perpendicular magnetic...
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