SPT-SLIM: A Line Intensity Mapping Pathfinder for the South Pole Telescope
SPT-SLIM: A Line Intensity Mapping Pathfinder for the South Pole Telescope
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SPT-SLIM：南极望远镜的线强度测绘探路者
DOI：
10.1007/s10909-022-02702-2
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发表时间：
2022
影响因子：
2
通讯作者：
Keating, G. K.
中科院分区：
文献类型：
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作者：
Karkare, K. S.;Anderson, A. J.;Barry, P. S.;Benson, B. A.;Carlstrom, J. E.;Cecil, T.;Chang, C. L.;Dobbs, M. A.;Hollister, M.;Keating, G. K.
南极望远镜夏季线强度映射器（SPT-SLIM）是一个探路者实验，将演示使用片上滤波器组光谱仪进行毫米波线强度映射。SPT-SLIM焦平面由18个双偏振滤波器组光谱仪组成，覆盖120-180 GHz，分辨率为300，耦合到铝动力学电感探测器。一个紧凑的低温恒温器将探测器保持在100 mK。SPT-SLIM将在2023年至2024年南半球夏季部署到10米南极望远镜上进行观测，而不会拆除主接收器。我们讨论了整体仪器设计，预期的检测器性能，和一氧化碳线信号的灵敏度。SPT-SLIM所展示的技术和观测技术将使下一代线强度测绘实验成为可能，这些实验将宇宙学限制在星系调查的红移范围之外。
The South Pole Telescope Summertime Line Intensity Mapper (SPT-SLIM) is a pathfinder experiment that will demonstrate the use of on-chip filter-bank spectrometers for mm-wave line intensity mapping. The SPT-SLIM focal plane consists of 18 dual-polarization filter-bank spectrometers covering 120–180 GHz with resolving power of 300, coupled to aluminum kinetic inductance detectors. A compact cryostat holds the detectors at 100 mK. SPT-SLIM will be deployed to the 10-m South Pole Telescope for observations during the 2023–2024 austral summer without removing the primary receiver. We discuss the overall instrument design, expected detector performance, and sensitivity to the carbon monoxide line signal at. The technology and observational techniques demonstrated by SPT-SLIM will enable next-generation line intensity mapping experiments that constrain cosmology beyond the redshift reach of galaxy surveys.