GIRMOS is a new concept for a Multi-Object Adaptive Optics (MOAO) spectrograph for Gemini (commissioning in 2023). We present an overview of the GIRMOS-MOAO conceptual design and simulation results. This instrument will become a facility instrument at Gemini and carry out scientific follow-up for JWST, but will also act as a Thirty-Meter Telescope (TMT) pathfinder, laying the scientific and technical ground-work for developing a second generation instrument for TMT. Technical Innovations for GIRMOS include a modular, high performance MOAO system, and high throughput infrared imaging spectroscopy. These technological innovations will have the broadest impact in the study of the formation and evolution of galaxies, but will also have broad reach in fields such as star and planet formation within our Milky Way and supermassive black holes in nearby galaxies. The MOAO system will patrol the 2' field of regard of GeMS, and utilize 16×16 actuator DMs feeding 4 IFU spectrographs, to yield diffraction limited performance with a goal of 50% Strehl at H-band.
Scott C. Chapman, Suresh Sivanadam, David Andersen, Colin Bradley, Carlos Correia, Masen Lamb, Olivier Lardiere, Colin Ross, Gaetano Sivo, and Jean-Pierre Veran, "The multi-object adaptive optics system for the GIRMOS spectrograph on Gemini-South," Proc. SPIE 10703, Adaptive Optics Systems VI, 107031K (Presented at SPIE Astronomical Telescopes + Instrumentation: June 13, 2018; Published: 19 July 2018); https://doi.org/10.1117/12.2312395.
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