Prime-Cam：CCAT-prime 望远镜的首光仪器
天体物理仪器与方法
2019-02-28 v1 宇宙学与河外天体物理
摘要
CCAT-prime 将是一台 6 米口径望远镜，工作于亚毫米至毫米波长，位于智利阿塔卡马沙漠 Cerro Chajnantor 海拔 5600 米处。其新颖的交叉 Dragone 光学设计将提供高吞吐量、宽视场，能够照亮比现有望远镜大得多的亚毫米和毫米探测器阵列。我们概述了 CCAT-prime 首光仪器 Prime-Cam 的研制动机与设计。Prime-Cam 将在一个 1.8 米直径、由稀释制冷机冷却的低温恒温器中容纳七个仪器模块。光学元件将由硅透镜组成，各仪器模块可针对特定科学目标单独优化。当前设计支持使用工作在 190 至 450 GHz 之间的多色过渡边传感器（TES）辐射热计进行宽带双偏振测量以及窄带 Fabry-Perot 光谱成像，还包括工作在 860 GHz 的宽带动力学电感探测器（KIDs）。这一宽频率范围将允许对银河系前景进行优异的表征与去除，从而实现亚毫米和毫米天空的精确测量。Prime-Cam 将用于通过 Sunyaev-Zeldovich 效应约束宇宙学、绘制再电离时期 [CII] 158 m 发射的强度图、测量宇宙微波背景偏振与前景、以及表征宽红移范围内的恒星形成历史。有关 CCAT-prime 的更多信息可在 www.ccatobservatory.org 获取。
引用
@article{arxiv.1807.00058,
title = {Prime-Cam: A first-light instrument for the CCAT-prime telescope},
author = {Eve M. Vavagiakis and Zeeshan Ahmed and Aamir Ali and Kaustuv Basu and Nicholas Battaglia and Frank Bertoldi and Richard Bond and Ricardo Bustos and Scott C. Chapman and Dongwoo Chung and Gabriele Coppi and Nicholas F. Cothard and Simon Dicker and Cody J. Duell and Shannon M. Duff and Jens Erler and Michel Fich and Nicholas Galitzki and Patricio A. Gallardo and Shawn W. Henderson and Terry L. Herter and Gene Hilton and Johannes Hubmayr and Kent D. Irwin and Brian J. Koopman and Jeffrey McMahon and Norman Murray and Michael D. Niemack and Thomas Nikolas and Michael Nolta and John L. Orlowski-Scherer and Stephen C. Parshley and Dominik A. Riechers and Kayla Rossi and Douglas Scott and Carlos Sierra and Max Silva-Feaver and Sara M. Simon and Gordon J. Stacey and Jason R. Stevens and Joel N. Ullom and Michael R. Vissers and Samantha Walker and Edward J. Wollack and Zhilei Xu and Ningfeng Zhu},
journal= {arXiv preprint arXiv:1807.00058},
year = {2019}
}
备注
Presented at SPIE Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, June 15th, 2018