The Astrochemical Legacy of Molecular Clouds to Protoplanetary Disks

分子云对原行星盘的天体化学遗产

• 批准号: 2893415
• 金额: --
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2893415
• 关键词: Astrochemical; Legacy; Molecular; Clouds; Protoplanetary

The complex organic molecules that are found in protoplanetary disks (PPDs) feed into the planet forming process. What is not clear is how these molecules formed. The aims of this project is to establish the astrochemical link between molecular clouds and PPDs. This will entail using and adapting our existing codes to consider how dust grain ice mantles can act as carriers of this chemical complexity. We will start by considering the chemical properties of the smallest species (such as CO) and, subject to empirical constraints, use this to model the chemical behaviours of more complex species. The key result will be to determine how the chemical composition of a PPD is determined by the physical and chemical evolution of its parent molecular cloud.

在原行星盘（PPD）中发现的复杂有机分子参与了行星的形成过程。目前尚不清楚这些分子是如何形成的。该项目的目的是建立分子云和PPD之间的天体化学联系。这将需要使用和调整我们现有的代码，以考虑尘埃颗粒冰幔如何作为这种化学复杂性的载体。我们将首先考虑最小物种（如CO）的化学性质，并根据经验约束，使用它来模拟更复杂物种的化学行为。关键的结果将是确定PPD的化学组成是如何由其母体分子云的物理和化学演变决定的。