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

这个项目是测量非常遥远的星系（在红移远远超过1的地方）的恒星形成速率，使用哈勃太空望远镜的图像和来自智利和夏威夷的大型地面望远镜的后续光谱，最终是詹姆斯韦伯太空望远镜。科学目标是绘制出宇宙形成恒星的平均速率随时间的函数图，并评估来自最大质量恒星的紫外线光子是否会产生宇宙的再电离，我们知道这种再电离发生在高红移时。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。詹姆斯·韦伯太空望远镜将于2018年发射，接替哈勃望远镜。邦克教授是欧洲航天局NIRSpec仪器科学小组的成员，这是JWST上的近红外光谱仪，我们将从任务开始就保证观测时间。该项目属于“天文观测”研究领域的“银河系外天文学与宇宙学”主题。

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.