The Physical Conditions of the ISM in High-Redshift Galaxies

高红移星系中 ISM 的物理条件

• 批准号: 203261968
• 负责人: Professor Dr. Frank Bertoldi
• 金额: --
• 依托单位: Max-Planck-Institut für Astronomie (MPIA)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/203261968?language=en
• 关键词: Physical; Conditions; ISM; Redshift; Galaxies

The physical conditions of the interstellar medium (ISM) in high-redshift galaxies appear to be very different from that found in present-day galaxies. Our SPP project has contributed much to begin quantify this difference. This continuation proposal seeks support to utilize the exciting future observational prospects to study the dense ISM in galaxies at the cosmic epoch with the richest gas content, an ISM from which most stars and heavy elements found in today's universe were formed. Through radio to FIR spectroscopy and imaging we will investigate the structure, evolution, and physics of the ISM throughout cosmic time, and follow how it relates to the processes that shape galaxies and govern the formation of stars. Specifically we will push high-density molecular gas tracers such as H2O and OH, and atomic fine structure line emission as a very powerful diagnostic to quantify the physics of the high-z ISM. We will continue to lead the unbiased characterization of the high-z ISM through molecular deep fields, which we have spearheaded in the first funding period. Continued funding is requested for an experienced postdoc each at Bonn and Heidelberg, which has proven to be instrumental for our success in the first funding period. Our program addresses central goals of the ISM-SPP and allows the focused continuation of a successful collaboration that led to more than 50 joint publications in the past decade.

高红移星系中星际介质（ISM）的物理条件似乎与当今星系中的物理条件有很大不同。我们的SPP项目为开始量化这种差异做出了很大的贡献。该延续提案寻求支持利用令人兴奋的未来观察前景来研究具有最丰富气体含量的宇宙时期星系中的密集ISM，这是当今宇宙中大多数恒星和重型元素的形成。通过无线电光谱和成像，我们将在整个宇宙时间内研究ISM的结构，进化和物理，并遵循其与塑造星系的过程的关系并控制恒星的形成。具体而言，我们将推动高密度的分子气体示踪剂，例如H2O和OH，以及原子精细结构线发射，作为一种非常强大的诊断，以量化高Z ISM的物理。我们将继续通过分子深场来领导高Z ISM的公正表征，这是我们在第一个资金时期率先的。持续的资金要求在波恩和海德堡都有经验丰富的博士后，事实证明，这对于我们在第一个资金期间的成功而言是重要的。我们的计划解决了ISM-SPP的核心目标，并允许继续进行成功的合作，从而导致过去十年中有50多家联合出版物。