2010•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIERequires access
Optical setup and wavefront sensor for solar adaptive optics at the Domeless Solar Telescope, Hida Observatory
Noriaki Miura, Fumihito Yokoyama, Maoto Nefu, Susumu Kuwamura, Naoshi Baba, Yoichiro Hanaoka, S. Ueno, Yoshikazu Nakatani, S. Nagata, Reizaburou Kitai, Kiyoshi Ichimoto, Hideki Takami
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Abstract
A solar adaptive optics system for a high-dispersion spectrograph is developed at the 60 cm domeless solar telescope of the Hida Observatory in Japan. Details of its optical setup are described for implementing a scanning slit spectroscopy with wavefront correction. A wavefront sensor used in the system is specified and a technique of reducing computational cost in wavefront sensing is also described. In solar observations, the improvement of contrast in images obtained with the adaptive optics system was demonstrated when a sunspot was used as a target of wavefront sensing.