24 July 2014 TMT-AGE: wide field of regard multi-object adaptive optics for TMT
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We introduce current status of the feasibility study on a wide field of regard (FoR) Multi-Object Adaptive Optics (MOAO) system for TMT (TMT-AGE: TMT-Analyzer for Galaxies in the Early universe). MOAO is a system which realize high spatial-resolution observations of multiple objects scattered in a wide FoR. In this study, we put emphasise on the FoR as wide as 10′ diameter. The wide FoR is crucial to effectively observe very high-redshift galaxies, which have low surface number density. Simulations of an MOAO system with 8 LGSs show close-to-diffraction-limited correction can be achieved within 5′ diameter FoR and moderate AO correction can be achieved within 10′ diameter FoR. We discuss overall system design of the wide FoR MOAO system considering the constraint from the stroke of small-size deformable mirror (DM). We also introduce current status of developments of key components of an MOAO system; high-dynamic range wavefront sensor (WFS) and large-stroke small-size DM, and real time computer (RTC) with fast tomographic reconstruction.
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Masayuki Akiyama, Masayuki Akiyama, Shin Oya, Shin Oya, Yoshito H. Ono, Yoshito H. Ono, Hideki Takami, Hideki Takami, Shinobu Ozaki, Shinobu Ozaki, Yutaka Hayano, Yutaka Hayano, Ikuru Iwata, Ikuru Iwata, Kazuhiro Hane, Kazuhiro Hane, Tong Wu, Tong Wu, Tomoyasu Yamamuro, Tomoyasu Yamamuro, Yuji Ikeda, Yuji Ikeda, } "TMT-AGE: wide field of regard multi-object adaptive optics for TMT", Proc. SPIE 9148, Adaptive Optics Systems IV, 914814 (24 July 2014); doi: 10.1117/12.2056320; https://doi.org/10.1117/12.2056320


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