Project P3: Origin of warm and hot debris disks and planetary system architecture

项目 P3：热碎片盘和行星系统结构的起源

• 批准号: 278213321
• 负责人: Professor Dr. Alexander Krivov
• 金额: --
• 依托单位: Hamburger Sternwarte
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/278213321?language=en
• 关键词: Project; P3; Origin; warm; hot

Near-IR interferometry, high-resolution mid-IR spectra, and far-IR surveys of the last years suggest that debris disks commonly possess a complex radial structure, involving cold (~ 50 K), warm (~ 200 K), and hot (~ 1000 K) dust components. However, it remains uncertain whether these components are always confined to physically separated narrow rings, and their origin and interrelations between them remain largely unclear. It is likely that invisible planets are largely responsible for the radial structure, populating and clearing various zones through migration or scattering. In this project, we will obtain improved statistics for the occurrence rate and parameters of warm and hot dust disks; come up with one or more specific scenarios for the origin of the observed warm and hot dust that satisfy the available theoretical and observational constraints; formulate constraints on planetesimals and planets and the overall architecture of the systems; and make suggestions for future observational tests. The project will be run in a close collaboration with projects P4-P9 that will provide key ingredients for the collisional models and calculation of observables.

近红外干涉测量、高分辨率中红外光谱和过去几年的远红外调查表明，碎片盘通常具有复杂的径向结构，包括冷（~ 50 K）、热（~ 200 K）和热（~ 1000 K）尘埃成分。然而，尚不确定这些成分是否总是局限于物理上分离的窄环，它们的起源和它们之间的相互关系在很大程度上仍不清楚。很可能是看不见的行星在很大程度上造成了放射状结构，它们通过迁移或散射填充和清理了各个区域。在本项目中，我们将获得温、热尘盘的发生率和参数的改进统计；对观测到的热尘埃和热尘埃的起源提出一个或多个具体的设想，并满足现有的理论和观测限制；制定对星子和行星的约束以及系统的总体架构；并对未来的观察试验提出建议。该项目将与P4-P9项目密切合作，P4-P9项目将为碰撞模型和观测计算提供关键成分。