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

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.

我们正计划利用盖亚空间望远镜的数据，辅之以APOGEE和GALAH等广域多路巡天的光谱信息，对银河系的动力学和结构进行建模，包括恒星和暗物质的分布。我们将研究一系列模型，包括但不限于牛仔裤模型，分布函数模型和定制模型。此外，我们很可能会使用类似银河系的星系的真实模拟来研究它的各种组成部分。博士学位的一部分将研究已知的潮汐流的扰动已知的暗物质子晕，即通过观察到的银河系卫星，如Sgr矮星。我们还计划研究银河系结构和动力学的变化，作为其吸积历史的函数。