ULTIMATE-Subaru: GLAO preliminary design overview

Yosuke Minowa; Yoshito Ono; Yoko Tanaka; Hiroshige Yoshida; Koki Terao; Yusei Koyama; Sadman Ali; Ichi Tanaka; Takashi Hattori; Hirofumi Okita; Yutaka Hayano; Shin Oya; Kentaro Motohara; Kenshi Yanagisawa; Michitoshi Yoshida; Masayuki Akiyama; Tadayuki Kodama; Hajime Ogane; Masahiro Konishi; Noelia Martinez Rey; Nicholas Herrald; Céline d'Orgeville; François Rigaut; Israel Vaughn; David Chandler; Dionne Haynes; Warrick Schofield; Shiang-Yu Wang; Chi-Yi Chou; Masahiko Kimura

doi:10.1117/12.2629749

29 August 2022 ULTIMATE-Subaru: GLAO preliminary design overview

Yosuke Minowa, Yoshito Ono, Yoko Tanaka, Hiroshige Yoshida, Koki Terao, Yusei Koyama, Sadman Ali, Ichi Tanaka, Takashi Hattori, Hirofumi Okita, Yutaka Hayano, Shin Oya, Kentaro Motohara, Kenshi Yanagisawa, Michitoshi Yoshida, Masayuki Akiyama, Tadayuki Kodama, Hajime Ogane, Masahiro Konishi, Noelia Martinez Rey, Nicholas Herrald, Céline d'Orgeville, François Rigaut, Israel Vaughn, David Chandler, Dionne Haynes, Warrick Schofield, Shiang-Yu Wang, Chi-Yi Chou, Masahiko Kimura

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 1218521 (2022) https://doi.org/10.1117/12.2629749
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

ULTIMATE-Subaru is a next facility instrumentation program of the Subaru Telescope. The goal of this project is to extend the wide-field capability of the Subaru to near-infrared (NIR), by developing a wide-field ground-layer adaptive optics (GLAO) system and wide-field NIR instruments. The GLAO system will uniformly improve the image quality up to 20-arcmin field of view in diameter by correcting for the ground-layer turbulence. The expected image quality after the GLAO correction is FWHM~0".2 in K-band under moderate seeing conditions. In this presentation, we present preliminary design overview of the GLAO system at the Cassegrain focus, which consist of an Adaptive Secondary Mirror, NGS and LGS wavefront sensor system, a laser guide star facility, and control system. We also present the prototyping activities to validate the selected design of the GLAO system.

Conference Presentation

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Yosuke Minowa, Yoshito Ono, Yoko Tanaka, Hiroshige Yoshida, Koki Terao, Yusei Koyama, Sadman Ali, Ichi Tanaka, Takashi Hattori, Hirofumi Okita, Yutaka Hayano, Shin Oya, Kentaro Motohara, Kenshi Yanagisawa, Michitoshi Yoshida, Masayuki Akiyama, Tadayuki Kodama, Hajime Ogane, Masahiro Konishi, Noelia Martinez Rey, Nicholas Herrald, Céline d'Orgeville, François Rigaut, Israel Vaughn, David Chandler, Dionne Haynes, Warrick Schofield, Shiang-Yu Wang, Chi-Yi Chou, and Masahiko Kimura "ULTIMATE-Subaru: GLAO preliminary design overview", Proc. SPIE 12185, Adaptive Optics Systems VIII, 1218521 (29 August 2022); https://doi.org/10.1117/12.2629749

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