CCAT-prime: a novel telescope for submillimeter astronomy

被引：30

作者：

Parshley, Stephen C. ^{[1
]}

Kronshage, Jorg ^{[2
]}

Blair, James ^{[1
]}

Herter, Terry ^{[1
]}

Nolta, Mike ^{[3
]}

Stacey, Gordon J. ^{[1
]}

Bazarko, Andrew ^{[4
]}

Bertoldi, Frank ^{[6
]}

Bustos, Ricardo ^{[7
]}

Campbell, Donald B. ^{[1
]}

Chapman, Scott ^{[8
]}

Cothard, Nicholas ^{[9
]}

Devlin, Mark ^{[5
]}

Erler, Jens ^{[6
]}

Fich, Michel ^{[10
]}

Gallardo, Patricio A. ^{[11
]}

Giovanelli, Riccardo ^{[1
]}

Graf, Urs ^{[12
]}

Gramke, Scott ^{[2
]}

Haynes, Martha P. ^{[1
]}

Hills, Richard ^{[13
]}

Limon, Michele ^{[5
]}

Mangum, Jeffrey G. ^{[14
]}

McMahon, Jeff ^{[15
]}

Niemack, Michael D. ^{[11
]}

Nikola, Thomas ^{[16
]}

Omlor, Markus ^{[2
]}

Riechers, Dominik A. ^{[1
]}

Steeger, Karl ^{[2
]}

Stutzki, Jurgen ^{[12
]}

Vavagiakis, Eve M. ^{[11
]}

机构：

[1] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA

[2] BVertex Antennentech GmbH, D-47198 Duisburg, Germany

[3] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada

[4] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[5] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[6] Rhein Friedrich Wilhelms Univ Bonn, Argelander Inst Astron, D-53121 Bonn, Germany

[7] Univ Catolica Santisima Concepcion, Alonso Ribera 2850, Concepcion, Chile

[8] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada

[9] Cornell Univ, Dept Appl & Engn Phys, Ithaca, NY 14853 USA

[10] Univ Waterloo, Waterloo, ON N2L 3G1, Canada

[11] Cornell Univ, Dept Phys, Ithaca, NY 14853 USA

[12] Univ Cologne, Phys Inst 1, D-50937 Cologne, Germany

[13] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[14] Natl Radio Astron Observ, Charlottesville, VA 22903 USA

[15] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[16] Cornell Univ, Ctr Astrophys & Planetary Sci, Ithaca, NY 14853 USA

来源：

GROUND-BASED AND AIRBORNE TELESCOPES VII | 2018年 / 10700卷

关键词：

telescopes; submillimeter; cross-Dragone; simulation;

D O I：

10.1117/12.2314046

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The CCAT-prime telescope is a 6-meter aperture, crossed-Dragone telescope, designed for millimeter and sub-millimeter wavelength observations. It will be located at an altitude of 5600 meters, just below the summit of Cerro Chajnantor in the high Atacama region of Chile. The telescope's unobscured optics deliver a field of view of almost 8 degrees over a large, flat focal plane, enabling it to accommodate current and future instrumentation fielding >100k diffraction-limited beams for wavelengths less than a millimeter. The mount is a novel design with the aluminum-tiled mirrors nested inside the telescope structure. The elevation housing has an integrated shutter that can enclose the mirrors, protecting them from inclement weather. The telescope is designed to co-host multiple instruments over its nominal 15 year lifetime. It will be operated remotely, requiring minimum maintenance and on-site activities due to the harsh working conditions on the mountain. The design utilizes nickel-iron alloy (Invar) and carbon-fiber-reinforced polymer (CFRP) materials in the mirror support structure, achieving a relatively temperature-insensitive mount. We discuss requirements, specifications, critical design elements, and the expected performance of the CCAT-prime telescope. The telescope is being built by CCAT Observatory, Inc., a corporation formed by an international partnership of universities. More information about CCAT and the CCAT-prime telescope can be found at www.ccatobservatory.org.

引用

页数：15

共 7 条

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