CLEAN and multiscale CLEAN for STIX in Solar Orbiter
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2026
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01A - Journal article
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Astronomy & Astrophysics
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706
Issue / Number
Pages / Duration
A360
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EDP Sciences
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Abstract
CLEAN is a well-established deconvolution approach to Fourier imaging at radio wavelengths and hard X-ray energies. One of the main limitations of CLEAN for hard X-ray imaging is that it requires a final convolution step by means of a convolution kernel whose width is strongly user dependent, and moreover, under-resolution effects are often introduced. This paper describes a multiscale version of CLEAN that is specifically tailored to the reconstruction of images from measurements observed by the Spectrometer/Telescope for Imaging X-rays (STIX) on board Solar Orbiter. Using synthetic STIX data, this study shows that multiscale CLEAN might represent a reliable solution to the two CLEAN limitations described above. Further, we show the performances of CLEAN and its multiscale release in reconstructing experimental real scenarios characterized by complex emission morphologies.
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1432-0746
0004-6361
0004-6361
Language
English
Created during FHNW affiliation
Yes
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Published
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Peer review of the complete publication
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Diamond
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Citation
Catalano, M., Volpara, A., Massa, P., Piana, M., & Massone, A. M. (2026). CLEAN and multiscale CLEAN for STIX in Solar Orbiter. Astronomy & Astrophysics, 706, A360. https://doi.org/10.1051/0004-6361/202557119