《亚利桑那大学加入美国25米望远镜项目组》

  • 来源专题:天文仪器与技术信息
  • 编译者: zwg@niaot.ac.cn
  • 发布时间:2017-12-15
  • Pasadena, Calif. – November 29, 2017 – The Giant Magellan Telescope Organization (GMTO) today announced that Arizona State University (ASU) has joined the mission to build the world’s largest telescope, the Giant Magellan Telescope (GMT). The project’s partnership with ASU will aid in GMT’s mission of discovery and its quest to answer some of the most fundamental questions of all: where did we come from, and are we alone in the Universe. The GMT will probe the atmospheres of planets around other stars for signs of biochemistry, and will look back to the early universe to understand how the first stars and galaxies formed.

    “ASU’s research expertise in the study of planets will be a great asset to the GMT project going forward,” said Robert N. Shelton, President of GMTO. “The involvement of the ASU team with the James Webb Space Telescope and with the investigation of the early universe is also a critical addition to the knowledge base of the project.”

    ASU’s School of Earth and Space Exploration (SESE) has established itself as a leading voice in the fields of exoplanets and space exploration. The mission of the school, to combine the strengths of science, engineering, and education to set the stage for a new era of exploration, aligns well with GMT’s mission of discovery. Faculty and students at the school are expected to work with the GMT project over the coming years; particularly Dr. Lindy Elkins-Tanton, SESE Director – a world leader in the study of terrestrial planetary formation and the principal investigator for the NASA Psyche mission to explore a metal asteroid – and Dr. Rogier Windhorst, ASU Regents Professor and interdisciplinary scientist for the James Webb Space Telescope.

    “Major scientific advances are created by new instrumentation, and to be serious about studying our universe, we need to join in these partnerships,” said Elkins-Tanton. “I’m excited that ASU has taken this leap institutionally to be a part of what’s going to be a beautiful and transformational instrument.”

    The GMT will combine the light from seven 8.4 meter mirrors to create a telescope with an effective aperture 24.5 meters in diameter (80 feet). With its unique design, the GMT will produce images that are 10 times sharper than those from the Hubble Space telescope in the infrared region of the spectrum. GMT’s partners will play a major role in the discoveries that will be made on the telescope, which is expected to see first light in 2023.

    “Many of humankind’s greatest discoveries have happened in preparation for space exploration,” said Sethuraman Panchanathan, executive vice president of Knowledge Enterprise Development and chief research and innovation officer at ASU. “Joining the GMT project helps our extraordinary astronomy and space science faculty access this revolutionary telescope and continue to advance their pioneering work in the fields of exoplanets and cosmology.”

    With this partnership, Arizona State University joins the world-wide consortium of scientists and academic institutions who are taking the GMT from concept to reality.

    GMTO’s partner institutions are Arizona State University, Astronomy Australia Ltd., The Australian National University, Carnegie Institution for Science, Fundação de Amparo à Pesquisa do Estado de São Paulo – FAPESP, Harvard University, Korea Astronomy and Space Science Institute, Smithsonian Institution, Texas A&M University, The University of Texas at Austin, University of Arizona, and University of Chicago.

  • 原文来源:http://www.gmto.org/2017/11/arizona-state-university-joins-the-giant-magellan-telescope-organization/
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  • 《美国25米望远镜第一块巨型子镜搬离亚利桑那大学镜面实验室》

    • 来源专题:天文仪器与技术信息
    • 编译者:zwg@niaot.ac.cn
    • 发布时间:2017-10-10
    • The first of seven 27-foot mirrors that together assemble into the world’s largest telescope, the Giant Magellan Telescope, has left the Richard F. Caris Mirror Lab at the University of Arizona, making space for the production of the remaining mirror segments. At 2:00 a.m. on Sept. 20 the hangar-like doors of the Mirror Lab, located underneath the University’s football stadium, slid open to reveal a custom-made precision shipping container, with the mirror tucked inside, ready to be moved to a temporary storage facility on the outskirts of Tucson AZ, as the first step on its journey towards its ultimate destination in the Chilean Andes. Once completed, the seven mirror segments will form the heart of the Giant Magellan Telescope, designed to have a resolving power 10 times greater than that of the Hubble Space Telescope. The Mirror Lab currently houses GMT primary mirror segment numbers 2, 3, and 4 which are in various stages of fabrication. Segment 2 is undergoing its final stage of work – polishing of its reflective surface – while segment 3 is ready for front surface grinding, and segment 4 is ready for rear surface grinding. The 17-ton glass disc for the fifth GMT primary mirror segment will be cast at the Mirror Lab on November 5, 2017. In the weeks preceding the move, the mirror had been lifted into a transport container inside the Mirror Lab. The mirror was lifted with suction cups attached to its precisely polished front surface. The transport container is a highly sophisticated unit, containing shock absorbers, load-equalizing levers, and heavy insulation capable of keeping the mirror safe until it is delivered to the mountain top site in Chile. The transport container, weighing twice as much as the mirror itself, was fabricated by CAID Industries of Tucson, Az. With the mirror inside, the unit weighs 55 tons. Safely ensconced in its transport container, the mirror was carefully loaded onto the deck of a 48-wheel transporter. The move by road was undertaken by Precision Heavy Haul Inc. of Phoenix AZ, taking an hour to cover the roughly 8 miles to the storage facility. GMT segment 1 will remain in storage until it is shipped, by road and sea, to the GMT site at the Carnegie Institution for Science’s Las Campanas Observatory in Chile – one of the world’s premier astronomical sites. Construction is underway at the GMT site; work on essential infrastructure – roads, power, water, sanitation, communications, and a worker’s residence – is complete. Excavation of the foundations for the telescope and the laboratory where the mirrors will be matched to the telescope is scheduled to begin early next year. The telescope is expected to see first light in 2023 with four of the Arizona mirrors. The seventh mirror should be in the telescope in 2025. Quotes: “Starting the first mirror on its long road to the mountain top in Chile marks a major milestone for the project. The GMT is a discovery machine and the precision optics form its uniquely powerful eye on the Universe. When Science, Engineering, and Philanthropy come together, great things are bound to happen.” Dr. Robert N. Shelton, President, GMTO Corporation “The University of Arizona is proud to be a partner in the GMT. The GMT’s primary mirror design and fabrication processes, invented by UA scientists and engineers, are at the heart of the telescope. With the first completed segment moved from the Richard F. Caris Mirror Lab, we will have more space to continue the production of the remaining segments.” Dr. Buell T. Jannuzi, Head of the Department of Astronomy and Director of Steward Observatory, University of Arizona。
  • 《美国亚利桑那大学水文与水资源系》

    • 来源专题:水体污染与防治领域信息门户
    • 编译者:徐慧芳
    • 发布时间:2006-01-26
    • Department of Hydrology and Water Resources were organized in 1966. Today the department is part of the College of Engineering and Mines, The University of Arizona (USA). The department have a strong reputation in areas of research in semi-arid regions, with four operating research centers, (CLIMAS - The Climate Assessment Project for the Southwest, RESAC - Regional Earth Science Applications Center, SAHRA - Sustainability of semi-Arid Hydrology and Riparian Areas, NIEHS - Superfund Grant to detect hazardous substances in the environment) and also a strong outreach program. This web site provides information about people in the department, relates program, courses, scientific research, publication, etc.