Constrained simulations of the local universe

局部宇宙的约束模拟

• 批准号: 179945379
• 负责人: Privatdozent Dr. Stefan Gottlöber
• 金额: --
• 依托单位: Leibniz-Institut für Astrophysik Potsdam (AIP)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/179945379?language=en
• 关键词: Constrained; simulations; local; universe

Over the past years we have performed a series of constrained simulations of the local universe. We propose to extent this research based on the next generation of constrained simulations. Main focus is to address the question how unique the Local Group is. We employ constrained simulations as a numerical laboratory for near-field cosmological that allows us to study the complex interplay of dark matter an gas dynamical processes and to compare our numerical models with the detailed observations of our cosmological neighborhood. We plan to improve the set-up of constrained random fields and to perform a series of new local universe simulations in order to systematically investigate the effects of different feedback descriptions as well as numerical resolution issues.

在过去的几年里，我们对本地宇宙进行了一系列有限的模拟。我们建议在下一代约束模拟的基础上扩展这项研究。主要焦点是解决本地组有多独特的问题。我们采用约束模拟作为近场宇宙学的数值实验室，使我们能够研究暗物质和气体动力学过程的复杂相互作用，并将我们的数值模型与我们宇宙学邻居的详细观测进行比较。我们计划改进约束随机场的设置，并执行一系列新的局部宇宙模拟，以便系统地研究不同反馈描述的影响以及数值分辨率问题。