A Holistic Approach to Terrestrial Planet Formation

系外行星形成于年轻恒星周围富含气体的原行星盘中。现代版本的核心吸积范式为如何将最初微观的尘埃颗粒转化为鹅卵石、行星体，最后是行星提供了路线图。正在形成的行星的性质(例如，它们的质量、轨道和组成)随后由与行星形成的不同阶段相关的物理和化学过程决定。然而，这些过程之间的相互作用是非常复杂的，而原始盘的化学组成与新兴行星的组成之间的联系的性质还没有得到很好的理解。该项目涉及开发和使用最先进的类地行星形成早期动态阶段的数值模型，结合了行星形成理论、观测天文学和天体化学领域的最新想法和见解。目标是模拟圆盘材料的元素和分子组成(例如，水、有机物、铁等的量)。在不断生长和移动的鹅卵石、行星体以及最终的小而多岩石的世界上留下了印记。你的工作将在原行星盘(如ALMA或JWST)和成熟系外行星之间提供重要的联系，揭示宇宙中其他地方如何形成与我们的行星相似的行星。

Exo-planets form in gas-rich protoplanetary discs around young stars. The modern version of the core accretion paradigm provides a roadmap for how to transform initially microscopic dust grains into pebbles, planetesimals, and finally planets. The properties of the forming planets (e.g., their masses, orbits, and composition) are then shaped by the physical and chemical processes associated with the various stages of planet formation. The interplay between these processes however is highly complex, and the nature of the link between the chemical make-up of the primordial disc, on one hand, and the composition of the emerging planets, on the other, is not well understood. This project involves developing and using state-of-the-art numerical models of the dynamic early stages of terrestrial planet formation, combining the latest ideas and insights from the theoretical planet formation, observational astronomy, and astrochemistry communities. The goal will be to simulate how the elemental and molecular composition of disc materials (e.g., amounts of water, organics, iron, etc.) is imprinted on growing and moving pebbles, planetesimals, and ultimately small, rocky worlds. Your work will provide an important link between protoplanetary discs (as observed with facilities such as ALMA or JWST) and mature exoplanets, shedding light on how planets resembling our own may be formed elsewhere in the universe.