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7 August 2014 Adaptive optics at the Subaru telescope: current capabilities and development
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Current AO observations rely heavily on the AO188 instrument, a 188-elements system that can operate in natural or laser guide star (LGS) mode, and delivers diffraction-limited images in near-IR. In its LGS mode, laser light is transported from the solid state laser to the launch telescope by a single mode fiber. AO188 can feed several instruments: the infrared camera and spectrograph (IRCS), a high contrast imaging instrument (HiCIAO) or an optical integral field spectrograph (Kyoto-3DII). Adaptive optics development in support of exoplanet observations has been and continues to be very active. The Subaru Coronagraphic Extreme-AO (SCExAO) system, which combines extreme-AO correction with advanced coronagraphy, is in the commissioning phase, and will greatly increase Subaru Telescope’s ability to image and study exoplanets. SCExAO currently feeds light to HiCIAO, and will soon be combined with the CHARIS integral field spectrograph and the fast frame MKIDs exoplanet camera, which have both been specifically designed for high contrast imaging. SCExAO also feeds two visible-light single pupil interferometers: VAMPIRES and FIRST. In parallel to these direct imaging activities, a near-IR high precision spectrograph (IRD) is under development for observing exoplanets with the radial velocity technique. Wide-field adaptive optics techniques are also being pursued. The RAVEN multi-object adaptive optics instrument was installed on Subaru telescope in early 2014. Subaru Telescope is also planning wide field imaging with ground-layer AO with the ULTIMATE-Subaru project.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Olivier Guyon, Yutaka Hayano, Motohide Tamura, Tomoyuki Kudo, Shin Oya, Yosuke Minowa, Olivier Lai, Nemanja Jovanovic, Naruhisa Takato, Jeremy Kasdin, Tyler Groff, Masahiko Hayashi, Nobuo Arimoto, Hideki Takami, Colin Bradley, Hajime Sugai, Guy Perrin, Peter Tuthill, and Ben Mazin "Adaptive optics at the Subaru telescope: current capabilities and development", Proc. SPIE 9148, Adaptive Optics Systems IV, 91481R (7 August 2014);

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