"The seeds of galaxy formation, obscured star formation at high redshift, and the local fossil record of galaxy formation."

“星系形成的种子，高红移下模糊的恒星形成，以及星系形成的局部化石记录。”

• 批准号: 418765-2012
• 负责人: Chapman, Scott
• 金额: $ 4.37万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=596499
• 关键词: seeds; galaxy; formation; obscured; star

Observational cosmology is an attempt to understand the processes which initiated the universe we live in, and how the rich and complex structure in the present-day universe formed and evolved. My research focuses on studying both the fundamental physics of cosmology via the Cosmic Microwave Background (CMB) and measurements of structure on very large scales, down to the details of galaxy evolution and the complex physics which manifests on small scales. There are many unanswered questions, starting from how the primordial density fluctuations in the very early universe inflated to produce the observed distribution of structure and galaxies, all the way to how environment drives galaxy evolution. Studying the Sub-millimetre Galaxies (SMGs) in particular in the distant universe gives us insight into the peak epoch in which massive galaxies were forming the bulk of their stars. This leads to a host of questions, such as whether massive galaxies form in a single burst of star formation or is their growth extended over time.

观测宇宙学试图理解我们所生活的宇宙的起源过程，以及当今宇宙中丰富而复杂的结构是如何形成和演变的。我的研究重点是通过宇宙微波背景（CMB）研究宇宙学的基础物理学和非常大尺度上的结构测量，直至星系演化的细节和在小尺度上表现出的复杂物理学。有许多未解的问题，从非常早期宇宙中的原始密度波动如何膨胀以产生观察到的结构和星系分布，一直到环境如何驱动星系演化。特别是在遥远的宇宙中研究亚毫米星系（SMG），使我们能够深入了解大质量星系形成其大部分恒星的高峰时期。这就引出了一系列问题，比如大质量星系是在星星形成的一次爆发中形成的，还是随着时间的推移而增长的。