SCExAO: First results and on-sky performance

Thayne Currie, Olivier Guyon, Frantz Martinache, Christophe Clergeon, Michael McElwain, Christian Thalmann, Nemanja Jovanovic, Garima Singh, Tomoyuki Kudo

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    2 Citations (Scopus)


    We present new on-sky results for the Subaru Coronagraphic Extreme Adaptive Optics imager (SCExAO) verifying and quantifying the contrast gain enabled by key components: the closed-loop coronagraphic low-order wavefront sensor (CLOWFS) and focal plane wavefront control ("speckle nulling"). SCExAO will soon be coupled with a high-order, Pyramid wavefront sensor which will yield > 90% Strehl ratio and enable 106-107 contrast at small angular separations allowing us to image gas giant planets at solar system scales. Upcoming instruments like VAMPIRES, FIRST, and CHARIS will expand SCExAO's science capabilities.

    Original languageEnglish
    Title of host publicationExploring the Formation and Evolution of Planetary Systems
    PublisherCambridge University Press
    Number of pages2
    ISBN (Print)9781107045200
    Publication statusPublished - 2013

    Publication series

    NameProceedings of the International Astronomical Union
    ISSN (Print)17439213
    ISSN (Electronic)17439221


    • Detectors
    • Instrumentation: adaptive optics
    • Stars: planetary systems


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