Multiwavelength Observational Signatures of the First Stars and Quasar Black Holes

这个项目将发展观测诊断，当应用于未来的数据时，将导致人们了解宇宙中第一代恒星和类星体黑洞是如何以及何时出现的，以及这些来源对红移6到30之间的原星系气体有什么影响。有三个主要的重点，都在当前研究的前沿：1)什么物理过程决定了第一个光源的性质；2)最早的大质量黑洞是如何形成的；3)宇宙是何时以及如何再电离的。这项研究的结果来自半分析技术和数值技术，集中于能够区分相互竞争的理论模型的观测试验，在解释目前和计划中的各种地基和天基仪器的结果时将是必不可少的。大部分工作将由一个代表性不足的群体的研究生进行，该项目将加强参与合作的地理位置分散的机构之间的联系。研究成果也将被纳入海登天文馆各种各样的公共推广项目

AST-0307291HaimanThis project will develop observational diagnostics that, when applied to future data, will lead to an understanding of how and when the first generation of stars and quasar black holes emerged in the universe, and what impact these sources had on the proto-galactic gas between redshifts six and thirty. There are three main thrusts, all at the frontiers of current research: 1) what physical processes determine the nature of the first sources of light, 2) how did the earliest massive black holes form, and 3) when and how was the Universe reionized. The results of this research, from semi-analytical and numerical techniques, concentrating on observational tests capable of distinguishing between competing theoretical models, will be indispensable in the interpretation of the results from a wide array of current and planned ground-based and space-based instruments.Much of the work will be carried out by a graduate student from an under-represented group, and the project will strengthen ties between the geographically separated institutions involved in the collaboration. Research results will also be incorporated in the many and varied public outreach programs of the Hayden Planetarium.***