Searching for Early Ionization with the Primeval Structure Telescope

这个项目支持美国参与“原始结构望远镜”项目，该项目计划在中国一个远离干扰发射机的偏远地区建造。过去有望成为中国/美国/加拿大的伙伴关系。“过去”将在大爆炸的第一个十亿年里寻找第一批恒星周围的热区域，这个早期阶段远远超出了当前望远镜的探测范围。“过去”前所未有的灵敏度将极大地扩展观测宇宙学的前沿。在目前的水平上，这种支持只是为美国继续参与做准备，为以后可能发挥更大的作用做准备。

AST-0507665PetersonThis project supports US participation in the Primeval Structure Telescope (PaST), which is planned for a remote part of China, far from interfering transmitters. PaST is expected to be a Chinese/US/Canadian partnership. PaST will search for the hot regions around the first stars during the first billion years of the Big Bang, an early period far beyond the reach of current telescopes. PaST's unprecedented sensitivity will dramatically extend the frontier of observational cosmology. At the current level, this support provides only for continued US involvement, in preparation for a possible, later, larger role.