[ASA] GMTO Newsletter - December 2019

Sun Dec 15 16:59:18 AEDT 2019

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GMTO Newsletter - December 2019

Welcome / GMTO’s Year in Review
The Giant Magellan Telescope project has had a very productive year.

Early in the year, excavation of the foundations for the telescope’s massive pier and enclosure was completed. Work took just six months during which 469 dump truck loads of soil and rock were transported from the summit to a storage location on site. For the rest of the year, work occurred to upgrade the water and electrical systems, and this is now nearing completion.

In May, the Project completed a major external review of its technical and financial plans and schedule. The results of the review were very positive with the review committee expressing the opinion that the plan was realistic and that the current team can deliver GMT.

University of Arizona’s Richard F. Caris Mirror Lab made excellent progress with the GMT mirrors. Mirror #2 was completed and shipped from the Mirror Lab to storage near Tucson Airport in July, joining Mirror #1, which was completed in 2017. Mirror #3 is undergoing front-surface fine grinding and Mirror #5 is undergoing rear-surface fine grinding.

Finally, as you can read below, the Project announced the signing of the contract for the telescope structure (also called the “mount”). After a two-year search, MT Mechatronics and Ingersoll Machine Tools were selected to complete the design and then manufacture the mount, shipping it to the GMT site in Chile in 2025.

We look forward to sharing our progress with you in 2020 and I hope to see many of you at the American Astronomical Society meeting in January.

–Dr. James Fanson, Project Manager

Read the newsletter here<http://r20.rs6.net/tn.jsp?f=001MMGI1H6nesgU1oYx_pzRiloNy7q6fgCInI1sLvSR2Bkg7V6SzbejqWlSo9yKkuYH8m5-PF7q7lq_Sn2mXMUOq6AO6GHaHpX_2mz4a1aAvLSVX6kvwRFdytLgPPvA0GJIiMa6dtPP5uxPQr930K2lPSGL__UUUG6E5CBgtQu4GP3jQ9KTtaAy_w==&c=nn6IHG7hhRAfBIGoDZuGMQZy7TdEq14BDeye2N18JHed_ZEYW66bnw==&ch=d0qPT6lBN-p0jxExdLuz4LbvwubjcAss_VYQgg7Ma5sj--2-3nkn7w==>

Giant Magellan Telescope signs contract for telescope structure
In late October, GMTO announced the signing of the contract with German company MT Mechatronics and Illinois-based Ingersoll Machine Tools to design, build and install the GMT’s telescope structure. The structure alone will weigh 1,800 tons and will hold the GMT’s seven giant mirrors, the scientific instruments, and the secondary mirrors, bringing its total weight to 2,100 tons. This entire mass will float on a film of oil just 50 microns thick, being supported by a number of precisely machined hydrostatic bearings.

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7th Annual GMT Community Science Meeting
GMTO held its 7th Annual Community Science Meeting on “The Cosmic Baryon Cycle” on September 19-21 in Carlsbad, California. The “baryon cycle” refers to the continuous cycling of gas into galaxies under the forces of gravity and out again under due to supernova explosions, jets from accreting objects, and other effects. This cycling occurs at all stages of galaxy evolution throughout the history of the universe, governs the rate at which galaxies can form stars, and influences everything about their appearance.

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Patrick McCarthy appointed Director of NSF’s OIR Lab
On October 1, the GMTO’s Vice President Patrick McCarthy transitioned to the prestigious role of Director at the newly formed National Science Foundation’s National Optical-Infrared Astronomy Research Laboratory.

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Upcoming American Astronomical Society Meeting
The Giant Magellan Telescope project will participate in the 235th American Astronomical Society Meeting in Honolulu, Hawaii in January as part of the US Extremely Large Telescope Program (US-ELTP). The US-ELTP is a partnership among GMT, the Thirty Meter Telescope, and NSF’s National Optical-Infrared Astronomical Research Laboratory.

The US-ELTP will have a booth in the Exhibit Hall and will be holding two community meetings. For those attending the AAS, please join us in room 306AB on Sunday, January 5 at 7:30 pm for a social Open House, and again on Tuesday, January 7 at 10:00 am for presentations on the program, the observatories, and the science.

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Mobile Astronomy Lab on the road in Chile
The first six months of operations of the Chilean Mobile Astronomy Lab, a collaborative project funded by GMTO, EcoScience Foundation, the Embassy of the United States in Chile and Kavli Foundation, have been a great success.

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