A Complete Understanding of Massive Galaxy Formation into the Epoch of Reionization

进入再电离时代对大质量星系形成的全面认识

• 批准号: ST/T003596/2
• 负责人: Rebecca Bowler
• 金额: $ 59.88万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FT003596%2F2
• 关键词: Complete; Understanding; Massive; Galaxy; Formation

At the frontier of modern astronomy is the study of first galaxies, when the universe was less than 10% of its current age. It is within this era that the first atoms of 'heavy' elements (such as Carbon, Oxygen, Iron) were created by the first generations of stars, and when the seeds of supermassive black holes were being formed. Despite being extremely distant, it is vital to understand this primordial galaxies, as they are the building-blocks of all subsequent galaxy formation. Remarkably, using telescopes such as the Hubble Space Telescope, it has been possible to detect and study galaxies in this epoch. Despite these advances, one of the most fundamental measurements, the number of the brightest and most massive galaxies, is unknown in the early Universe.In the coming years, new data-sets from both established ground-based telescopes, and several new space-missions will revolutionise the field, with the capability of detecting many thousands of such galaxies. My previous experience and innovative approach to analysing these new data, by combining information at a range of wavelengths, will provide a full understanding of these galaxies and reveal the detailed astrophysics of galaxy formation at this early time. The result will be the first constraints on when supermassive black-holes became active and on when significant enrichment occurred (leading to obscuration by cosmic dust). I will also determine the role of these galaxies in a crucial phase change in the history of the universe, the 'Epoch of Reionization', where the predominantly neutral Universe became ionised by the first stars and/or active black holes.

现代天文学的前沿是对第一个星系的研究，当时宇宙的年龄还不到现在的10%。正是在这个时代，第一代恒星创造了第一个“重”元素（如碳，氧，铁）的原子，并且形成了超大质量黑洞的种子。尽管非常遥远，但了解这些原始星系至关重要，因为它们是所有后续星系形成的基石。值得注意的是，使用哈勃太空望远镜等望远镜，在这个时代已经可以探测和研究星系。尽管取得了这些进展，但早期宇宙中最基本的测量方法之一，即最明亮和最大质量的星系的数量，仍然是未知的。在未来几年，来自现有地面望远镜和几个新的太空任务的新数据集将彻底改变该领域，有能力探测成千上万个这样的星系。我以前的经验和创新的方法来分析这些新数据，通过结合一系列波长的信息，将提供对这些星系的全面了解，并揭示早期星系形成的详细天体物理学。其结果将是第一个限制超大质量黑洞何时变得活跃，以及何时发生显着富集（导致宇宙尘埃遮蔽）。我还将确定这些星系在宇宙历史上的一个关键相变中的作用，即“再电离时代”，在那里，主要是中性的宇宙被第一批恒星和/或活跃的黑洞电离。

项目成果

Extensions of Heterogeneity in Integration and Prediction (HIP) with R Shiny Application

使用 R Shiny 应用程序扩展集成和预测 (HIP) 中的异质性

• DOI: 10.48550/arxiv.2310.08426
• 发表时间: 2023
• 期刊: arXiv e-prints
• 作者: Butts J.

JADES NIRSpec Spectroscopy of GN-z11: Lyman-$\alpha$ emission and possible enhanced nitrogen abundance in a $z=10.60$ luminous galaxy

GN-z11 的 JADES NIRSpec 光谱：莱曼-$alpha$ 发射和 $z=10.60$ 发光星系中可能增强的氮丰度

• DOI: 10.48550/arxiv.2302.07256
• 发表时间: 2023
• 期刊: arXiv e-prints
• 作者: Bunker Andrew J.

Spectroscopic confirmation of four metal-poor galaxies at z=10.3-13.2

z=10.3-13.2 处四个贫金属星系的光谱确认

• DOI: 10.48550/arxiv.2212.04568
• 发表时间: 2022
• 期刊: arXiv e-prints
• 作者: Curtis-Lake Emma

The total rest-frame UV luminosity function from $3 < z < 5$: A simultaneous study of AGN and galaxies from $-28<M_{\rm UV}<-16$

$3 < z < 5$ 的总静止帧 UV 光度函数：对 AGN 和星系的同步研究 $-28<M_{ m UV}<-16$

• DOI: 10.48550/arxiv.2207.09342
• 发表时间: 2022
• 期刊: arXiv e-prints
• 作者: Adams N. J.

JADES: Probing interstellar medium conditions at $z\sim5.5-9.5$ with ultra-deep JWST/NIRSpec spectroscopy

JADES：利用超深 JWST/NIRSpec 光谱探测 $zsim5.5-9.5$ 的星际介质条件

• DOI: 10.48550/arxiv.2302.04298
• 发表时间: 2023
• 期刊: arXiv e-prints
• 作者: Cameron Alex J.