标题： 宇宙微波背景观测的偏振傅里叶变换光谱仪的系统效应 显示英文标题

标题： Systematic effects in polarizing Fourier transform spectrometers for cosmic microwave background observations

摘要： 宇宙微波背景（CMB）原初B模式极化信号的探测将为暴胀提供证据。然而，正如越来越清楚的那样，探测如此微弱的信号需要一种既能覆盖宽频率以排除前景，又能很好地控制仪器系统效应的仪器。使用偏振傅里叶变换光谱仪(FTS)进行CMB观测满足这两个要求。在这项工作中，我们以原始暴涨探测器（PIXIE）为例，分析了偏振傅里叶变换光谱仪中的仪器系统效应。我们解析地解决了FTS固有的最重要系统效应——发射光学元件、错位光学元件、取样和相位误差以及同步自旋效应，并证明校正后的残余系统误差项都将处于亚nK级别，远低于预测的100 nK B模式信号。 显示英文摘要

摘要： The detection of the primordial B-mode polarization signal of the cosmic microwave background (CMB) would provide evidence for inflation. Yet as has become increasingly clear, the detection of a such a faint signal requires an instrument with both wide frequency coverage to reject foregrounds and excellent control over instrumental systematic effects. Using a polarizing Fourier transform spectrometer (FTS) for CMB observations meets both these requirements. In this work, we present an analysis of instrumental systematic effects in polarizing Fourier transform spectrometers, using the Primordial Inflation Explorer (PIXIE) as a worked example. We analytically solve for the most important systematic effects inherent to the FTS - emissive optical components, misaligned optical components, sampling and phase errors, and spin synchronous effects - and demonstrate that residual systematic error terms after corrections will all be at the sub-nK level, well below the predicted 100 nK B-mode signal.