论文标题
南极的Bicep3 CMB极化计的极化校准
Polarization Calibration of the BICEP3 CMB polarimeter at the South Pole
论文作者
论文摘要
Bicep3 CMB极化计是一种位于南极的小孔折射望远镜，专门设计用于寻找宇宙微波背景（CMB）中通货膨胀引力波的可能特征。该实验通过差异与过渡边缘传感器（TES）检测器的共同确定的，正交极化天线的信号来测量天空上的极化。我们介绍了几乎所有bicep3 $ \ sim800 $从2018年1月采取的校准数据中运行极化敏感的探测器对的绝对极化响应角度和极化效率的精确测量。我们使用旋转极化源（RPS）绘制了每个检测器的旋转极化响应，均与整个360度旋转的旋转旋转构图旋转旋转，并绘制了多个旋转的旋转速度旋转的旋转，并绘制了多个旋转的旋转范围，供应量的旋转极化响应。 估计的。在将来的工作中，这些结果将用于约束外在物理模型（例如宇宙双折射）预测的信号。
The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary gravitational waves in the Cosmic Microwave Background (CMB). The experiment measures polarization on the sky by differencing the signal of co-located, orthogonally polarized antennas coupled to Transition Edge Sensor (TES) detectors. We present precise measurements of the absolute polarization response angles and polarization efficiencies for nearly all of BICEP3s $\sim800$ functioning polarization-sensitive detector pairs from calibration data taken in January 2018. Using a Rotating Polarized Source (RPS), we mapped polarization response for each detector over a full 360 degrees of source rotation and at multiple telescope boresight rotations from which per-pair polarization properties were estimated. In future work, these results will be used to constrain signals predicted by exotic physical models such as Cosmic Birefringence.
