A Method for Distributed Personal Contents Management

Chung, Moonyoung; Kang, Sungjoo; Choi, Ji Hoon; Ku, Kyong-I; Kim, Youn-Jung; Choi, Wan

doi:10.1109/icact.2008.4493878

Cited by 1 publication

(1 citation statement)

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“…Represented is a single spectral bin of the spatial-spectral intensity mapping data cube. Right: Sensitivity curves for the power spectrum of the [CII] emission at multiple redshifts [6]. Plotted are multiple power spectra predictions which differ by factors of 10 to 50.…”

Section: Science Objectives and Motivationmentioning

confidence: 99%

The Design of the CCAT-prime Epoch of Reionization Spectrometer Instrument

Cothard¹,

Choi²,

Duell³

et al. 2020

J Low Temp Phys

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The Epoch of Reionization Spectrometer (EoR-Spec) is an instrument module for the Prime-Cam receiver of the 6 m aperture CCAT-prime Telescope at 5600 m in Chile. EoR-Spec will perform 158 µm [CII] line intensity mapping of star-forming regions at redshifts between 3.5 and 8 (420 -210 GHz), tracing the evolution of structure during early galaxy formation. At lower redshifts, EoR-Spec will observe galaxies near the period of peak star formation -when most stars in today's universe were formed. At higher redshifts, EoR-Spec will trace the late stages of reionization, the early stages of galaxy assembly, and the formation of large-scale, three-dimensional clustering of star-forming galaxies. To achieve its science goals, EoR-Spec will utilize CCAT-prime's exceptionally low water vapor site, large field of view (∼ 5 degrees at 210 GHz), and narrow beam widths (∼ 1 arcminute at 210 GHz). EoR-Spec will be outfitted with a cryogenic, metamaterial, silicon substrate-based Fabry-Perot Interferometer operating at a resolving power (λ /∆ λ ) of 100. Monolithic dichroic arrays of cryogenic, feedhorn-coupled transition edge sensor bolometers provide approximately 6000 detectors, which are read out using a frequency division multiplexing system based on microwave SQUIDs. The novel design allows the measurement of the [CII] line at two redshifts simultaneously using dichroic pixels and two orders of the Fabry-Perot. Here we present the design and science goals of EoR-Spec, with emphasis on the spectrometer, detector array, and readout designs.

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Section: Science Objectives and Motivationmentioning

confidence: 99%