Modelling the dynamics of the Milky Way and its substructure using simulations and analytical techniques

使用模拟和分析技术对银河系及其子结构的动力学进行建模

• 批准号: 2604986
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2604986
• 关键词: Modelling; dynamics; Milky; Way; its; Modelling; dynamics; Milky; Way; its

We are planning to use data from the Gaia space telescope complemented by the spectroscopic information from wide-area multiplex surveys like APOGEE and GALAH to perform modelling of the dynamics and structure of the Milky Way, including the distributions of stars and dark matter. We will investigate a range of models including but not limited to Jeans models, distribution function models and made-to-measure models. In addition, it is likely we will use realistic simulations of Milky Way-like galaxies to study its various components. A portion of the PhD will investigate perturbations of the known tidal streams by known Dark Matter sub-halos, i.e. by the observed Galactic satellites such as the Sgr dwarf. We are also planning to look into variations of the Milky Way structure and dynamics as a function of its accretion history.

我们计划使用来自Gaia空间望远镜的数据，并通过广阔区域多重调查（如Apogee和Galah）的光谱信息进行补充，以对银河系的动态和结构进行建模，包括星星和暗物质的分布。我们将研究一系列模型，包括但不限于牛仔裤模型，分配功能模型和制作量化模型。此外，我们很可能会使用银河系样星系进行现实的模拟来研究其各种组件。博士的一部分将通过已知的暗物质sub-Halos（即通过观察到的银河卫星（如SGR矮人））研究已知的潮汐流的扰动。我们还计划将银河系结构和动态的变化作为其积聚历史的函数。