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(PASD)，该望远镜计划在中国的偏远地区进行，远离干扰发射器。过去预计将是中国/美国/加拿大的合作伙伴关系。PASS将在大爆炸的第一个10亿年期间寻找第一批恒星周围的炎热区域，这是一个远远超出目前望远镜所能到达的早期时期。过去史无前例的敏感性将极大地扩展观测宇宙学的前沿。在目前的水平上，这种支持只是为了让美国继续参与，为以后可能发挥的更大作用做准备。

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.