Collaborative Research: Simulation of Systematic Efffects in Interferometry for Studies of the Cosmic Microwave Background

合作研究：宇宙微波背景研究中干涉测量系统效应的模拟

• 批准号: 0908902
• 负责人: Benjamin Wandelt
• 金额: $ 15.86万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0908902&HistoricalAwards=false
• 关键词: Collaborative; Research; Simulation; Systematic; Efffects

The goal of this collaborative research is to conduct the first end-to-end simulations of systematic errors in Cosmic Microwave Background (CMB) experiments conducted with interferometers. A variety of cosmological processes have imprinted the CMB radiation with faint polarization signals, including Thomson scattering, gravitational lensing, and gravitational waves released during inflation. Measurements of these faint signals will determine key parts of the cosmological puzzle, among which are the energy scale of inflation and the masses of the neutrinos. Detecting these small signal levels is extremely challenging, and this program will help determine the best ways to accomplish such measurements.The broader impacts of this program include training of undergraduate students in research, and public release of simulations which will be useful to future CMB experiments.

这项合作研究的目标是对使用干涉仪进行的宇宙微波背景（CMB）实验中的系统误差进行首次端到端模拟。各种各样的宇宙学过程给CMB辐射留下了微弱的偏振信号，包括汤姆逊散射、引力透镜和暴胀过程中释放的引力波。对这些微弱信号的测量将决定宇宙学之谜的关键部分，其中包括暴胀的能量尺度和中微子的质量。检测这些小信号水平是非常具有挑战性的，这个程序将有助于确定最好的方法来完成这样的测量。这个程序的更广泛的影响，包括本科生的研究培训，并公开发布的模拟，这将是有用的未来CMB实验。