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- W2033808510 abstract "The Astrophysics Focused Telescope Assets (AFTA) is one of a pair of space-qualified 2.4 meter diameter telescopes given to NASA. One plan is to use the telescope for WFIRST with a coronagraph as a secondary instrument for high contrast imaging of exoplanets and disks. Because the system is obscured by a secondary mirror and spiders, it is not the optimal unobscured configuration to which most of current proposed space coronagraphs have been designed. In the later half of 2013 a study was undertaken to evaluate coronagraphs designed specifically for the AFTA telescope. As part of this process, end-to-end numerical modeling was performed with a realistically aberrated system to determine the contrast limits of each technique. Reported here are the simulation procedures and a summary of results for four coronagraphs (hybrid Lyot, shaped pupil, vector vortex, and PIAA complex mask) evaluated for the technology downselect." @default.
- W2033808510 created "2016-06-24" @default.
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- W2033808510 date "2014-08-02" @default.
- W2033808510 modified "2023-10-17" @default.
- W2033808510 title "End-to-end numerical modeling of AFTA coronagraphs" @default.
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- W2033808510 doi "https://doi.org/10.1117/12.2056759" @default.
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