Discovering Galaxies in the Early Universe with the Hubble Space Telescope and the James Webb Space Telescope

用哈勃太空望远镜和詹姆斯·韦伯太空望远镜发现早期宇宙中的星系

• 批准号: 1947699
• 金额: --
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1947699
• 关键词: Discovering; Galaxies; Early; Universe; Hubble

This project is measuring the star formation rate in very distant galaxies (at redshifts well beyond one), using Hubble Space Telescope images and follow-up spectroscopy from large ground-based telescopes in Chile and Hawaii, and ultimately the James Webb Space Telescope. The science goal is to map the average rate at which the Universe forms stars as a function of time, and to assess whether the ultra-violet photons from the most massive stars could have produced the reionization of the Universe, which we know occurred at high redshift. These galaxies will be important targets for future study with the James Webb Space Telescope (JWST), the successor to Hubble to be launched in 2018. Prof Bunker is on the European Space Agency Instrument Science Team for NIRSpec, the near-infrared spectrograph on JWST, and we will have guaranteed time observations from the start of the mission. This project falls with in the "Extra-Galactic Astronomy & Cosmology" theme of the "Astronomy - observation" research area.

该项目利用哈勃空间望远镜图像和智利和夏威夷大型地面望远镜以及詹姆斯·韦伯空间望远镜的后续光谱学，测量非常遥远星系（红移远大于1）中的星星形成率。科学目标是绘制宇宙形成恒星的平均速率作为时间的函数，并评估来自最大质量恒星的紫外光子是否可能产生宇宙的再电离，我们知道这发生在高红移。这些星系将成为詹姆斯韦伯太空望远镜（JWST）未来研究的重要目标，该望远镜将于2018年发射哈勃望远镜的继任者。掩体教授是欧洲航天局NIRSpec仪器科学小组的成员，NIRSpec是JWST上的近红外光谱仪，我们将从使命开始就有保证的时间观测。该项目福尔斯属于“天文-观测”研究领域的“银河系外天文学与宇宙学”主题。