Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.2056836 |
The Greenland Telescope (GLT): Antenna status and future plans. | |
Raffin, Philippe1; Algaba-Marcos, Juan Carlos1; Asada, Keichi1; Blundell, Raymond2; Burgos, Roberto2; Chang, Chih-Cheng1; Chen, Ming-Tang1; Christensen, Robert4; Grimes, Paul K.2; Han, C. C.1; Ho, Paul T. P.1,2; Huang, Yau-De1; Inoue, Makoto1; Koch, Patrick M.1; Kubo, Derek3; Leiker, Steve2; Liu, Ching-Tang5; Martin-Cocher, Pierre1; Matsushita, Satoki1; Nakamura, Masanori1; Nishioka, Hiroaki1; Nystrom, George1; Paine, Scott N.2; Patel, Nimesh A.2; Pradel, Nicolas1; Pu, Hung-Yi1; Shen, H. -Y.1; Snow, William3; Sridharan, T. K.2; Srinivasan, Ranjani3; Tong, Edward2; Wang, Jackie1 | |
通讯作者 | Raffin, Philippe |
会议名称 | Conference on Ground-Based and Airborne Telescopes V |
会议日期 | JUN 22-27, 2014 |
会议地点 | Montreal, CANADA |
英文摘要 | The ALMA North America Prototype Antenna was awarded to the Smithsonian Astrophysical Observatory (SAO) in 2011. SAO and the Academia Sinica Institute of Astronomy & Astrophysics (ASIAA), SAO's main partner for this project, are working jointly to relocate the antenna to Greenland to carry out millimeter and submillimeter VLBI observations. This paper presents the work carried out on upgrading the antenna to enable operation in the Arctic climate by the GLT Team to make this challenging project possible, with an emphasis on the unexpected telescope components that had to be either redesigned or changed. Five-years of inactivity, with the antenna laying idle in the desert of New Mexico, coupled with the extreme weather conditions of the selected site in Greenland have it necessary to significantly refurbish the antenna. We found that many components did need to be replaced, such as the antenna support cone, the azimuth bearing, the carbon fiber quadrupod, the hexapod, the HVAC, the tiltmeters, the antenna electronic enclosures housing servo and other drive components, and the cables. We selected Vertex, the original antenna manufacturer, for the main design work, which is in progress. The next coming months will see the major antenna components and subsystems shipped to a site of the US East Coast for test-fitting the major antenna components, which have been retrofitted. The following step will be to ship the components to Greenland to carry out VLBI and single dish observations. Antenna reassembly at Summit Station should take place during the summer of 2018. |
英文关键词 | Greenland VLBI antenna retrofit carbon fiber |
来源出版物 | GROUND-BASED AND AIRBORNE TELESCOPES V |
ISSN | 0277-786X |
出版年 | 2014 |
卷号 | 9145 |
EISBN | 978-0-8194-9613-3 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Taiwan;USA |
收录类别 | CPCI-S |
WOS记录号 | WOS:000354375800015 |
WOS类目 | Astronomy & Astrophysics ; Instruments & Instrumentation ; Optics |
WOS研究方向 | Astronomy & Astrophysics ; Instruments & Instrumentation ; Optics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/303237 |
作者单位 | 1.Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan; 2.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA; 3.Acad Sinica, Inst Astron & Astrophys, Hilo, HI 96720 USA; 4.Smithsonian Astrophys Observ, Hilo, HI 96720 USA; 5.ASRD CSIST, Taichung 407, Taiwan |
推荐引用方式 GB/T 7714 | Raffin, Philippe,Algaba-Marcos, Juan Carlos,Asada, Keichi,et al. The Greenland Telescope (GLT): Antenna status and future plans.[C]:SPIE-INT SOC OPTICAL ENGINEERING,2014. |
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