ACTPol 与 Advanced ACTPol 宇宙微波背景辐射测量的光学建模与偏振校准
天体物理仪器与方法
2017-01-18 v2 宇宙学与河外天体物理
摘要
阿塔卡马宇宙学望远镜偏振计 (ACTPol) 是阿塔卡马宇宙学望远镜的偏振敏感升级设备。ACTPol 位于海拔 5190 米处，以角分级的角分辨率测量宇宙微波背景辐射 (CMB) 的温度和偏振。探测器角度的校准是生成 CMB 偏振图的关键步骤。探测器校准中的偏振角偏移会导致偏振从 E 模泄漏到 B 模，并在 EB 和 TB 互相关中引入虚假信号，从而消除我们测量潜在宇宙学 EB 和 TB 信号源（如宇宙双折射）的能力。我们展示了与校准 ACTPol 探测器角度相关的光学建模和测量结果。
引用
@article{arxiv.1607.01825,
title = {Optical modeling and polarization calibration for CMB measurements with ACTPol and Advanced ACTPol},
author = {Brian Koopman and Jason Austermann and Hsiao-Mei Cho and Kevin P. Coughlin and Shannon M. Duff and Patricio A. Gallardo and Matthew Hasselfield and Shawn W. Henderson and Shuay-Pwu Patty Ho and Johannes Hubmayr and Kent D. Irwin and Dale Li and Jeff McMahon and Federico Nati and Michael D. Niemack and Laura Newburgh and Lyman A. Page and Maria Salatino and Alessandro Schillaci and Benjamin L. Schmitt and Sara M. Simon and Eve M. Vavagiakis and Jonathan T. Ward and Edward J. Wollack},
journal= {arXiv preprint arXiv:1607.01825},
year = {2017}
}
备注
12 pages, 8 figures, conference proceedings submitted to Proceedings of SPIE; added reference in section 2 and merged repeated reference