Sensitivity of the Prime-Cam Instrument on the CCAT-Prime Telescope
Sensitivity of the Prime-Cam Instrument on the CCAT-Prime Telescope
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CCAT-Prime 望远镜上 Prime-Cam 仪器的灵敏度
DOI：
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发表时间：
2019
影响因子：
2
通讯作者：
S. Walker
中科院分区：
文献类型：
--
作者：
Steve K. Choi;J. Austermann;K. Basu;N. Battaglia;F. Bertoldi;D. Chung;N. Cothard;S. Duff;C. Duell;P. Gallardo;Jiansong Gao;T. Herter;J. Hubmayr;M. Niemack;T. Nikola;D. Riechers;K. Rossi;G. Stacey;J. Stevens;E. Vavagiakis;M. Vissers;S. Walker
CCAT-prime是一个新的6米交叉Dragone望远镜，旨在表征宇宙微波背景（CMB）偏振和前景，测量星系团的Sunyaev-Zel'dovich效应，绘制再电离时代（EoR）的[CII]发射强度，并监测银河系数百颗原恒星多年时间尺度的吸积光度。CCAT-prime将在智利北方阿塔卡马沙漠的Cerro Chajnantor海拔5600米的地点进行观测。该望远镜的新颖光学设计结合高表面精度（${<}\，10\，\upmu$$ < 10 μ m）反射镜和该站点的特殊大气条件，将能够在亚毫米到毫米波长进行灵敏的宽带、偏振和光谱测量。Prime-Cam是CCAT-prime的第一个轻型仪器，由一个直径为1.8米的低温恒温器组成，可以容纳七个独立的仪器模块。每个仪器模块，针对特定的科学目标进行了优化，将使用最先进的动力学电感探测器（KID）阵列，在100 mK和法布里-珀罗干涉仪（FPI）的EoR科学运行。Prime-Cam将分阶段部署，以填充七个仪器模块。完整的仪器将包括60，000个220/280/350/410 GHz组合的极化KID，31，000个250/360 GHz的KIDS与FPI耦合，以及21，000个850 GHz的极化KID。Prime-Cam目前正在建造中，而CCAT-prime望远镜则由Vertex Spinnentechnik GmbH设计和建造，将于2021年实现首次亮相。CCAT-prime也是未来CMB第四阶段观测的潜在望远镜平台。
CCAT-prime is a new 6 m crossed Dragone telescope designed to characterize the cosmic microwave background (CMB) polarization and foregrounds, measure the Sunyaev–Zel’dovich effects of galaxy clusters, map the [CII] emission intensity from the epoch of reionization (EoR), and monitor accretion luminosity over multiyear timescales of hundreds of protostars in the Milky Way. CCAT-prime will make observations from a 5600-m-altitude site on Cerro Chajnantor in the Atacama Desert of northern Chile. The novel optical design of the telescope combined with high-surface-accuracy ( $${<}\,10 \,\upmu$$ < 10 μ m) mirrors and the exceptional atmospheric conditions of the site will enable sensitive broadband, polarimetric, and spectroscopic surveys at sub-millimeter to millimeter wavelengths. Prime-Cam, the first light instrument for CCAT-prime, consists of a 1.8-m-diameter cryostat that can house seven individual instrument modules. Each instrument module, optimized for a specific science goal, will use state-of-the-art kinetic inductance detector (KID) arrays operated at $${\sim }\,100$$ ∼ 100 mK and Fabry–Perot interferometers (FPI) for the EoR science. Prime-Cam will be commissioned with staged deployments to populate the seven instrument modules. The full instrument will consist of 60,000 polarimetric KIDs at a combination of 220/280/350/410 GHz, 31,000 KIDS at 250/360 GHz coupled with FPIs, and 21,000 polarimetric KIDs at 850 GHz. Prime-Cam is currently being built, and the CCAT-prime telescope is designed and under construction by Vertex Antennentechnik GmbH to achieve first light in 2021. CCAT-prime is also a potential telescope platform for the future CMB Stage IV observations.
30 米 IRAM 望远镜上的 NIKA2 仪器：性能和结果
影响因子：
2
作者：
Catalano A
通讯作者：
Catalano A