GEPOD: Global Evolution of Planet-fOrming Disks

GEPOD：行星形成盘的全球演化

• 批准号: EP/Y014383/1
• 负责人: Paola Pinilla
• 金额: $ 158.34万
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 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=EP%2FY014383%2F1
• 关键词: GEPOD; Global; Evolution; Planet; fOrming

Observations of exoplanets have revealed an astonishing diversity of planetary system configurations, which raises a fundamental question: How do initial conditions and the dynamical evolution of the birth-sites of planets (protoplanetary disks) influence the properties of exoplanets? It is unclear what drives the evolution of the disks while planets are forming, and how these conditions are determined by the stellar properties. Observing and modeling disks at various stages of evolution across large stellar properties is therefore crucial to constrain current theories of planet formation. GEPOD aims to provide an observational and theoretical view of the global evolution of protoplanetary disks at the time when planets form. I will lead and mentor an outstanding international research group to answer the following major open questions: (1) What are the physical processes that dominate the evolution of protoplanetary disks, (2) how do these processes affect the chemical composition of close-in planets where planets like Earth form, (3) does planet formation happen early- and possibly during the star formation process, and finally (4) how the simultaneous evolution of the host stars affect the disk evolution? High-resolution imaging instrumentation, in particular ALMA and JWST to which I have privileged access, provide us with a unique opportunity to answer these questions and test models of planet formation. Over the last decade I have led the development of theoretical models to understand the first steps of planet formation and I have compared these models with observational data from state-of-the-art telescopes. My theoretical research and observational discoveries have changed the way we understand the genesis of planets. With the unique combination of exquisite data and the theoretical machinery that I have developed, GEPOD will transform our understanding of the origins of exoplanets and their properties.

对外行星的观察表明，行星系统配置的多样性令人惊讶，这提出了一个基本的问题：初始条件和行星出生点（原行星磁盘）的动态演变如何影响e型球星的特性？目前尚不清楚是什么驱动行星形成时磁盘进化的原因，以及这些条件如何由恒星特性确定。因此，在大型恒星特性的各个进化阶段观察和建模磁盘对于限制行星形成的当前理论至关重要。 GEPOD旨在在行星形成时提供原星盘的全球演变的观察和理论观点。我将领导和指导一个杰出的国际研究小组，以回答以下主要的开放问题：（1）占主导原球磁盘演变的物理过程是什么，（2）这些过程如何影响近距离行星的化学组成地球形式之类的行星，（3）行星形成是否在恒星形成过程中发生早期或可能发生在恒星形成过程中，最后（4）宿主恒星的同时演变如何影响磁盘的演变？高分辨率成像仪器，尤其是我拥有特权访问的Alma和JWST，为我们提供了一个独特的机会，可以回答这些问题的问题和测试模型。在过去的十年中，我领导了理论模型的发展，以了解行星形成的第一步，并将这些模型与最先进望远镜的观察数据进行了比较。我的理论研究和观察发现改变了我们理解行星起源的方式。借助我开发的精致数据和理论机制的独特组合，Gepod将改变我们对系外行星及其特性起源的理解。