MUSCAT部署前验证及映射速度预测
Pre-deployment Verification and Predicted Mapping Speed of MUSCAT
摘要：
墨西哥-联合王国天文学亚毫米照相机（MUSCAT）是一个1.1毫米接收器，由1，500个集总元件动态电感探测器（LEKID）组成，用于大型毫米望远镜（LMT;墨西哥普埃布拉的Volcán Sierra Negra）。MUSCAT利用了LMT升级后的50米主镜的最大视场，是第一个在大型毫米望远镜上部署毫米/亚毫米接收器的墨西哥-英国合作项目。使用一个简单的模拟器，我们估计一个预测的映射速度为MUSCAT相结合的MUSCAT的实测性能与观测到的天空条件在LMT。我们将此与先前计算的测辐射热模型映射速度进行比较，发现我们的映射速度与先前报道的经验因子缩放时吻合良好。通过这个模拟，我们表明，由于天空波动的信号污染，可以有效地通过使用主成分分析。我们还概述了仪器设计，并解释了这种设计如何允许MUSCAT进行升级，并在设施级TolTEC接收器上线后作为新技术的空中演示测试平台。
英文摘要：
The Mexico-UK Submillimetre Camera for AsTronomy (MUSCAT) is a 1.1 mm receiver consisting of 1,500 lumped-element kinetic inductance detectors (LEKIDs) for the Large Millimeter Telescope (LMT; Volcán Sierra Negra in Puebla, México). MUSCAT utilises the maximum field of view of the LMT's upgraded 50-metre primary mirror and is the first México-UK collaboration to deploy a millimetre/sub-mm receiver on the Large Millimeter Telescope. Using a simplistic simulator, we estimate a predicted mapping speed for MUSCAT by combining the measured performance of MUSCAT with the observed sky conditions at the LMT. We compare this to a previously calculated bolometric-model mapping speed and find that our mapping speed is in good agreement when this is scaled by a previously reported empirical factor. Through this simulation we show that signal contamination due to sky fluctuations can be effectively removed through the use of principle component analysis. We also give an overview of the instrument design and explain how this design allows for MUSCAT to be upgraded and act as an on-sky demonstration testbed for novel technologies after the facility-class TolTEC receiver comes online.
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