Overview and Status of the Giant Magellan Telescope Project

被引：28

作者：

Fanson, James ^{[1
]}

Bernstein, Rebecca ^{[1
,2
]}

Angeli, George ^{[1
]}

Ashby, David ^{[1
,3
]}

Bigelow, Bruce ^{[1
]}

Brossus, Glenn ^{[1
]}

Bouchez, Antonin ^{[1
]}

Burgett, William ^{[1
]}

Contos, Adam ^{[1
]}

Demers, Richard ^{[1
]}

Figueroa, Francisco ^{[1
]}

Fischer, Barbara ^{[1
]}

Groark, Frank ^{[1
]}

Laskin, Robert ^{[1
]}

Millan-Gabet, Rafael ^{[1
]}

Pi, Marti ^{[1
]}

Wheeler, Nune ^{[1
]}

机构：

[1] GMTO Corp, 465 N Halstead St,Suite 250, Pasadena, CA 91107 USA

[2] Carnegie Observ, 813 Santa Barbara St, Pasadena, CA 91101 USA

[3] Steward Observ, 933 N Cherry Ave, Tucson, AZ 85719 USA

来源：

GROUND-BASED AND AIRBORNE TELESCOPES VIII | 2020年 / 11445卷

关键词：

GMT; GMTO; Giant Magellan Telescope; Extremely Large Telescope;

D O I：

10.1117/12.2561852

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Giant Magellan Telescope project is proceeding with design, fabrication, and site construction. The first two 8.4m primary mirror segments have been completed and placed in storage, three segments are in various stages of grinding and polishing, the sixth segment is in the initial stages of casting, and glass is in hand to cast the seventh segment. An industry contract is in place to complete the design and proceed with fabrication of the telescope structure. Residence buildings and other facilities at the Las Campanas site in Chile are complete. Hard rock excavation of the foundations for the enclosure and telescope pier is complete. Preliminary design of the enclosure has been completed and final design is underway. Seismic isolation system bearings have been tested. A primary mirror segment test cell that will be used to qualify control system components and software is being fabricated. Prototyping continues in several areas, including on-telescope wavefront sensing and control elements, telescope laser metrology, and a subscale Adaptive Secondary Mirror (ASM). Adaptive optics and phasing testbeds are under development. Construction activities were delayed by the global coronavirus pandemic, but work has now resumed.

引用

页数：20

共 28 条

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[3]

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[4]

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[10] Overview and Status of the Giant Magellan Telescope Project [J].

Fanson, James ;

McCarthy, Patrick J. ;

Bernstein, Rebecca ;

Angeli, George ;

Ashby, David ;

Bigelow, Bruce ;

Bouchez, Antonin ;

Burgett, William ;

Chauvin, Eric ;

Contos, Adam ;

Figueroa, Francisco ;

Gray, Peter ;

Groark, Frank ;

Laskin, Robert ;

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GROUND-BASED AND AIRBORNE TELESCOPES VII, 2018, 10700

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