Spectroscopic Probes of Reionization and Galaxy Evolution in the First Billion Years

该项目的目标是在再电离时代结束时，当宇宙由于新形成的恒星和类星体的辐射从大部分中性气体过渡到大部分电离气体时，限制星系际介质（IGM）的部分电离的演变。这项工作的更广泛影响包括为研究生和博士后提供研究培训，并通过在麦克唐纳天文台建立一个新的教师讲习班，将约15名中学教师带入研究环境，并将为他们提供将这项研究带入课堂的技能。首席研究员和他的团队还将通过创建三个StarDate广播节目与公众分享他们的研究成果。Keck 10m光学望远镜上的MOSFIRE和DEIMOS光谱仪将对红移范围6 z 8的明亮高红移星系进行光谱线观测。在毫米范围内，ALMA将用于观察电离碳的发射线。

The objective of this project is to constrain the evolution of the fractional ionization of the Intergalactic Medium (IGM) at the end of the epoch of reionization, when the universe transitioned from largely neutral gas to largely ionized gas due to the radiation from newly formed stars and quasars. Broader impacts of the work include research training of graduate students and a postdoc, and outreach via creation of a new teacher workshop at the McDonald Observatory which will bring about 15 secondary school teachers into a research environment, and will provide them with the skills to bring this research into their classroom. The principle investigator and his group will also share their research with the general public by creating three StarDate radio programs. Optical spectral line observations of bright high redshift galaxies in the redshift range 6 z 8 will be conducted using the MOSFIRE and DEIMOS spectrographs on the Keck 10m optical telescopes. In the millimeter range, ALMA will be used to observe emission lines from ionized carbon.