High-contrast spectroscopy testbed for segmented telescopes
| Autor: | James K. Wallace, R. Zhang, Bertrand Mennesson, Dimitri Mawet, Ji Wang, Wenhao Xuan, Elodie Choquet, G. Vasisht, Nemanja Jovanovic, Michael Randolph, Daniel Echeverri, Jason Fucik, Reed Riddle, Jacques-Robert Delorme, Garreth Ruane, Yeyuan Xin, J. D. Llop Sayson, Nikita Klimovich, Richard Dekany |
|---|---|
| Přispěvatelé: | Shaklan, Stuart |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Wavefront
Lyot stop 010504 meteorology & atmospheric sciences Computer science business.industry Detector Astrophysics::Instrumentation and Methods for Astrophysics 01 natural sciences Deformable mirror Exoplanet law.invention Telescope Optics law 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics business 010303 astronomy & astrophysics Coronagraph Spectrograph 0105 earth and related environmental sciences |
| Popis: | 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 wavefront disturbances. It also contains a wavefront corrector module based on two deformable mirrors followed by a classical 3-plane single-stage corona- graph (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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|