Abstract
Developing new instruments and upgrading existing instruments has been an important aspect of Subaru telescope's operation. Seven facility instruments and two visiting instruments are currently under use. Among them HiCIAO, a coronagraphic imager combined with adaptive optics (AO188), has started its full operation in the 2nd semester of 2009. We are using HiCIAO for a large program (SEEDS) to find new exo-planets and comprehend planet formation from proto-planetary disks. To achieve higher contrast, a new coronagraph attachment with an extreme AO (SCExAO) will be installed as a PI instrument. AO188 is also used with the IRCS in natural guide star mode. Its laser guide star mode is currently commissioning. The Fibre multi-object spectrograph (FMOS), which is comprised of 400 fibers placed at the prime focus and delivers 0.9-1.8um spectra, will be partly offered to open use from mid 2010. Hyper Suprime-Cam, the wide-field upgrade (1.5 deg FoV) of the Suprime-Cam, is under development for its first light in 2011. Development of an immersion grating has taken place for upgrading the IRCS with a high-resolution infrared spectrograph.
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