Systematic De-saturation of Images from the Atmospheric Imaging Assembly in the Solar Dynamics Observatory

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Abstract

Extreme ultraviolet (EUV) images of solar flares provided by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) are often affected by saturation effects in their core, physically most interesting, region. We introduce an image reconstruction procedure that allows recovering information in the primary saturation domain using the secondary images produced by the diffraction fringes as input data. Such a procedure is based on standard image-processing tools like correlation, convolution, and back-projection. Its effectiveness is tested in the case of AIA/SDO observations of the 2013 July 8 flaring event.

Author

Schwartz, R. A.; Torre, G.; Piana, M.

Journal

Astrophysical Journal Letters

Paper Publication Date

October 2014

Paper Type

Astrostatistics