Galactic Winds and Turbulence in High Redshift Galaxies

高红移星系中的银河风和湍流

• 批准号: 126586302
• 负责人: Dr. Martin Krause
• 金额: --
• 依托单位: Lehrstuhl für beobachtende und experimentelle Astrophysik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/126586302?language=en
• 关键词: Galactic; Winds; Turbulence; Redshift; Galaxies

Star formation in galaxies causes supernova explosions, and thereby both, turbulence and, if strong enough, winds or galactic fountains. High star formation rates, outflow features and turbulence are prime characteristics for high redshift galaxies. Here, we propose 3D hydrodynamics simulations to address the problem, in particular with the aim to find a logical connection between star formation, turbulence and outflow characteristics. As methodological improvements over previous work, we'd like to use a grid-based approach with realistic initial conditions from a cosmological simulation, and account for radiative transfer effects. We will produce realistic models for the galaxy-halo interaction, and clarify, if continuous accretion can occur simultaneously with strong outflow features.

星系中的星星形成会引起超新星爆炸，从而产生湍流，如果足够强，还会产生风或星系喷泉。高红移星系的主要特征是高星星形成率、外流特征和湍流。在这里，我们提出了三维流体动力学模拟来解决这个问题，特别是与目的是找到一个逻辑之间的联系星星的形成，湍流和外流特性。作为对以前工作的方法改进，我们希望使用基于网格的方法，从宇宙学模拟中获得现实的初始条件，并考虑辐射传输效应。我们将产生现实的模型，星系晕相互作用，并澄清，如果连续吸积可以同时发生强流出功能。