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Communication Dans Un Congrès Année : 2018

The segmented pupil experiment for exoplanet detection: Part 3. Advances and first light with segments cophasing

Résumé

SPEED (Segmented Pupil Experiment for Exoplanet Detection) is an instrumental testbed designed to offer an ideal cocoon to provide relevant solutions in both cophasing and high-contrast imaging with segmented telescopes. The next generation of observatories will be made of a primary mirror with excessive complexity (mirror segmentation, central obscuration, and spider vanes) undoubtedly known to be unfavorable for the direct detection of exoplanets. Exoplanets detection around late-type stars (M-dwarfs) constitutes an outstanding reservoir of candidates, and SPEED integrates all the recipes to pave the road for this science case (cophasing sensors, multi-DM wavefront control and shaping architecture as well as advanced coronagraphy). In this paper, we provide a progress overview of the project and report on the first light with segments cophasing control and monitoring from a coronagraphic image.
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Dates et versions

hal-02308613 , version 1 (08-10-2019)

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Patrice Martinez, Pierre Janin-Potiron, Mathilde Beaulieu, Carole Gouvret, Julien Dejonghe, et al.. The segmented pupil experiment for exoplanet detection: Part 3. Advances and first light with segments cophasing. Adaptive Optics Systems VI, Jun 2018, Austin, United States. pp.268, ⟨10.1117/12.2313551⟩. ⟨hal-02308613⟩
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