The low-metallicity ISM: From high redshift to the local Universe

低金属丰度ISM：从高红移到局部宇宙

• 批准号: 203086584
• 负责人: Professor Dr. Robi Stefan Banerjee, since 12/2017
• 金额: --
• 依托单位: Hamburger Sternwarte
• 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 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/203086584?language=en
• 关键词: low; metallicity; ISM; redshift; local

The project proposed here is a continuation of the project "The low-metallicity ISM: Metal enrichment, chemistry, feedback and magnetic fields". In the previous project, we have investigated the interplay of supernova explosions with magnetic field structures in the ISM, developed the KROME package for the modelling of chemistry in numerical simulations and pursued some first applications in the low-metallicity ISM. In the second funding period, we plan to investigate the implications of chemistry and turbulent magnetic field amplification in the context of nearby dwarf galaxies, as new data from Herschel and advanced radio facilities like LOFAR provide new insights into the structure of their ISM. Specifically, we aim for a detailed modelling of the ISM phases at low metallicity (sub-project ISMPHASES), and we will explore the result of turbulent magnetic field amplification in the presence of supernova feedback (sub-project EXPLOSION). These projects allow us, for instance, to probe whether the far-infrared - radio correlation should hold even in dwarf galaxies, and help with the interpretation of Herschel line data.

这里提议的项目是“低金属丰度ISM：金属富集、化学、反馈和磁场”项目的继续。在上一个项目中，我们研究了超新星爆炸与ISM中磁场结构的相互作用，开发了KROME软件包，用于数值模拟中的化学建模，并在低金属丰度ISM中进行了一些初步应用。在第二个资助期内，我们计划在附近矮星系的背景下研究化学和湍流磁场放大的影响，因为来自Herschel和LOFAR等先进无线电设施的新数据为其ISM的结构提供了新的见解。具体来说，我们的目标是在低金属丰度的ISM阶段的详细建模（子项目ISMPHASES），我们将探索在超新星反馈的存在下湍流磁场放大的结果（子项目EXPLOSION）。例如，这些项目使我们能够探索远红外无线电相关性是否应该在矮星系中保持，并帮助解释赫歇尔线数据。