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16 September 2015 WFIRST-AFTA coronagraph performance: feedback from post-processing studies to overall design
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Abstract
The WFIRST-AFTA Coronagraph aims at forming direct images and measuring the first spectra of exoplanets in orbit around main sequence stars. An important aspect of the instrument is the ability to remove residual stellar speckles to improve the detectability of such planets. Based on detailed simulations and early laboratory tests, we present here some first estimates of the contrast gain expected from advanced post-processing treatments of AFTA-like coronagraphic images. We further discuss their impact on the overall design of the instrument, including its anticipated observing approach.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bertrand Mennesson, John Krist, Bijan Nemati, Marie Ygouf, Laurent Pueyo, Remi Soummer, and Marshall Perrin "WFIRST-AFTA coronagraph performance: feedback from post-processing studies to overall design", Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 96050D (16 September 2015); https://doi.org/10.1117/12.2189403
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