NASA NTRS · 20140010498
SCExAO: First Results and On-Sky Performance
Abstract
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 greater than 90% Strehl ratio and enable 10(exp 6) -10(exp 7) 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.
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Currie, Thayne, Guyon, Olivier, Martinache, Frantz, Clergeon, Christophe, McElwain, Michael, Thalmann, Christian, Jovanovic, Nemanja, Singh, Garima, Kudo, Tomoyuki. 2013-06-02. SCExAO: First Results and On-Sky Performance. https://ntrs.nasa.gov/citations/20140010498
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