GMT overview

Shectman, Stephen; Johns, Matt

doi:10.1117/12.857852

Cited by 17 publications

(13 citation statements)

References 10 publications

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“…The goals of the project and the concept for the GMT have been reviewed in past proceedings of the SPIE. 1,2,3,4,5,6 In this 2018 status update, we concentrate on areas of the project that have undergone significant evolution since the report in the 2016 proceedings. These include improvements in systems engineering and integrated modeling, incorporation of base isolation into the telescope pier, engagement with industry contractors for the telescope structure, advances in wavefront sensing, metrology and control, and construction on the site in Chile.…”

Section: Introductionmentioning

confidence: 99%

Overview and status of the Giant Magellan Telescope project

Fanson¹,

Bernstein

Angeli³

et al. 2020

Ground-Based and Airborne Telescopes VIII

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Section: Introductionmentioning

confidence: 99%

Overview and status of the Giant Magellan Telescope project

Fanson¹,

Bernstein

Angeli³

et al. 2020

Ground-Based and Airborne Telescopes VIII

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Section: Introductionmentioning

confidence: 99%

Overview and status of the Giant Magellan Telescope project

McCarthy¹,

Ashby²,

Bigelow³

et al. 2018

Ground-Based and Airborne Telescopes VII

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The Giant Magellan Telescope project is proceeding with design, fabrication, and site construction. The first of the seven required 8.4-m primary mirror segments is completed and in storage, three segments are in various stages of grinding and polishing, and the fifth segment has been cast. Industry contracts are underway to complete the design of the telescope structure. Residence buildings and other facilities needed to support construction at the Las Campanas site in Chile are complete. Hard rock excavation is imminent in preparation for the pouring of concrete for the telescope pier and other foundations. Computational fluid dynamics analysis is informing the design of the telescope enclosure, and further construction work packages are being readied for tender. Seismic design considerations have resulted in the incorporation of a seismic isolation system into the telescope pier, as well as modifications to the primary mirror support system. Designs for the fast-steering and adaptive secondary mirrors, science instruments, and other subsystems are maturing. Prototyping is underway in various aspects, including on-sky testing of wavefront sensing and control elements, and the telescope metrology system. Our fabrication and construction schedule calls for engineering first light with a subset of primary mirror segments in late 2023, with buildout to the full configuration occurring in stages, paced by the availability of primary mirror segments and other components.

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“…The AAO has a strong track record in delivering successful fiber technologies and robotic positioners for astronomy, as demonstrated with the 2dF 1 , FLAMES/OzPoz 2 and FMOS/Echidna 19 instruments. As such, the AAO has proposed a concept for the GMT 3 Facility Multi-Object Fiber System (GFFS), called MANIFEST, the Many Instrument Fiber System 4 . MANIFEST is a fiber feed system for GMT that offers access to larger fields of view, higher multiplex gains, versatile reformatting of the focal plane via IFUs and image-slicers, and in some cases higher spatial and spectral resolution.…”

Section: Introductionmentioning

confidence: 99%

MANIFEST instrument concept and related technologies

et al. 2012

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The Australian Astronomical Observatory (AAO) has recently completed a feasibility study for a fiber-positioner facility proposed for the Giant Magellan Telescope (GMT), called MANIFEST (the Many Instrument Fiber System). The MANIFEST facility takes full advantage of the wide-field focal plane to efficiently feed a number of focal instruments. It is a simple, flexible and modular design, based on the AAO's experience and R&D with starbugs, robotic positioners, and related fiber technologies for astronomical instrumentation. Up to 2000 individually deployable fiber units are envisaged, with a wide variety of aperture types (single-aperture, image-or pupil-slicing, IFU). MANIFEST allows (a) full use of the GMT's 20' field-of-view, (b) a multiplexed IFU capability, (c) greatly increased spectral resolution via image-slicing, (d) the possibility of OH-suppression in the near-infrared. It is intended that MANIFEST will form part of the GMT facility itself, available to any instrument able to make use of it. In this paper, we report on the recent progress involving the science goals, instrument concept, related technologies and performances.

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GMT overview

Cited by 17 publications

References 10 publications

Overview and status of the Giant Magellan Telescope project

Overview and status of the Giant Magellan Telescope project

Overview and status of the Giant Magellan Telescope project

MANIFEST instrument concept and related technologies

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