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High-contrast spectroscopy testbed for segmented telescopes

Jason Fucik, James K. Wallace, Nikita S. Klimovich, Garreth Ruane, Ji Wang, Élodie Choquet, Wenhao J. Xuan, Daniel Echeverri, Michael Randolph, Reed Riddle, Richard G. Dekany, Gautam Vasisht (+8 others)
2018 Techniques and Instrumentation for Detection of Exoplanets VIII  

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The High Contrast Spectroscopy Testbed for Segmented Telescopes (HCST) at Caltech is aimed at filling gaps in technology for future exoplanet imagers and providing the U.S. community with an academic facility to test components and techniques for high contrast imaging with future segmented ground-based telescope (TMT, E-ELT) and space-based telescopes (HabEx, LUVOIR). The HCST will be able to simulate segmented telescope geometries up to 1021 hexagonal segments and time-varying external
more » ... t disturbances. It also contains a wavefront corrector module based on two deformable mirrors followed by a classical 3-plane single-stage coronagraph (entrance apodizer, focal-plane mask, Lyot stop) and a science instrument. The back-end instrument will consist of an imaging detector and a high-resolution spectrograph, which is a unique feature of the HCST. The spectrograph instrument will utilize spectral information to characterize simulated planets at the photon-noise limit, measure the chromaticity of new optimized coronagraph and wavefront control concepts, and test the overall scientific functions of high-resolution spectrographs on future segmented telescopes.
doi:10.1117/12.2274893 fatcat:bk4eyos32fapxo2ruld5q7oen4
Citation

Jason Fucik, James K. Wallace, Nikita S. Klimovich, Garreth Ruane, Ji Wang, Élodie Choquet, Wenhao J. Xuan, Daniel Echeverri, Michael Randolph, Reed Riddle, Richard G. Dekany, Gautam Vasisht, Bertrand Mennesson, Jacques-Robert Delorme, N. Jovanovic, Manxuan Zhang, Yeyuan Xin, Jorge Domingo Llop Sayson, Dimitri Mawet, Stuart Shaklan. "High-contrast spectroscopy testbed for segmented telescopes." Techniques and Instrumentation for Detection of Exoplanets VIII (2018)