The Subaru Coronagraphic Extreme Adaptive Optics Imager: First Results and On-Sky Performance

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

The Subaru Coronagraphic Extreme Adaptive Optics Imager: First Results and On-Sky Performance

Instrumentation and Methods for Astrophysics 2013-07-17 v1 Earth and Planetary Astrophysics

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

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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 > 90% Strehl ratio and enable 10^6--10^7 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.

Keywords

extreme adaptive optics coronagraphy high-contrast imaging wavefront control exoplanet imaging Subaru telescope Strehl ratio

Cite

@article{arxiv.1307.4093,
  title  = {The Subaru Coronagraphic Extreme Adaptive Optics Imager: First Results and On-Sky Performance},
  author = {Thayne Currie and Olivier Guyon and Frantz Martinache and Christophe Clergeon and Michael McElwain and Christian Thalmann and Nemanja Jovanovic and Garima Singh and Tomoyuki Kudo},
  journal= {arXiv preprint arXiv:1307.4093},
  year   = {2013}
}

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IAU 299/Victoria conference proceedings

The Subaru Coronagraphic Extreme Adaptive Optics Imager: First Results and On-Sky Performance

Abstract

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