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astro-ph.IM2024
Computation of the Fresnel diffraction of starshades based on a polygonal approximation
Simon Prunet, Claude Aime, André Ferrari +1
The design of starshades, i.e. external occulters for stellar coronography, relies on the fast and precise computation of their associated diffraction patterns of incoming plane wa…
astro-ph.IM2024
A comparison of solar and stellar coronagraphs that make use of external occulters
Claude Aime, Céline Theys, Simon Prunet +1
Solar and stellar externally occulted coronagraphs share similar concepts, but are actually very different because of geometric characteristics. Solar occulters were first develope…
astro-ph.IM2024★ 3 cited
Multi-Step Reconstruction of Radio-Interferometric Images
S. Wang, S. Prunet, S. Mignot +1
The advent of large aperture arrays, such as the currently under construction Square Kilometer Array (SKA), allows for observing the universe in the radio-spectrum at unprecedented…