The Astrochemical Legacy of Molecular Clouds to Protoplanetary Disks

在原行星盘(PPD)中发现的复杂有机分子为行星形成过程提供了素材。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。这将需要使用和修改我们现有的代码，以考虑尘埃颗粒冰盖如何充当这种化学复杂性的载体。我们将从考虑最小物种(如CO)的化学性质开始，并在受到经验限制的情况下，使用这一点来模拟更复杂物种的化学行为。关键结果将是确定PPD的化学成分是如何由其母分子云的物理和化学演化决定的。

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.