New Science with ACTPol

该项目将开发理论工具和分析方法，应用于当前和即将到来的阿塔卡马宇宙学望远镜（ACT）的总强度和偏振数据。本文将考虑三个具体的分析：前景星系团的宇宙微波背景透镜信号，大角度CMB透镜与温度的相互关系，以及ACT通过星系团的平均对偶速度测量星系运动的扩展和改进。这三项研究将在宇宙尺度上促进对宇宙结构增长和引力本质的认识。这项工作更广泛的影响包括培养本科生和研究生。此外，Kosowsky博士将在匹兹堡地区组织一个科学家-教师合作项目，以成功的K-12教育项目的NSF研究生STEM研究员为蓝本。

This program will develop theoretical tools and analysis methods to apply to current and upcoming Atacama Cosmology Telescope (ACT) total intensity and polarization data. Three specific analyses will be considered: the Cosmic Microwave Background lensing signal by foreground galaxy clusters, the large angle CMB lensing versus temperature cross correlation, and an extension and improvement of ACT's measurements of galaxy motions via the mean pairwise velocity of galaxy clusters. These three studies will advance the understanding of growth of structure in the universe and the nature of gravitation on cosmological scales.Broader impacts of the work include training of undergraduate and graduate students. In addition, Dr. Kosowsky will organize a scientist-teacher partnership program in the Pittsburgh region, modeled on the successful NSF Graduate STEM Fellows in K-12 Education program.