Evolution of the mineralogical and chemical composition of pre-planetary disks

前行星盘的矿物学和化学成分的演化

• 批准号: 35039629
• 负责人: Professor Dr. Werner M. Tscharnuter
• 金额: --
• 依托单位: Max-Planck-Institut für Astronomie (MPIA)
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/35039629?language=en
• 关键词: Evolution; mineralogical; chemical; composition; pre

The project aims at developing comprehensive models based on numerical simulations for the early mineralogical and chemical evolution of the material in pre-planetary disks. This includes, on the one hand, modeling of the disk structure and evolution, and of processes of matter transport within the disk, and, on the other hand, the modeling of the chemical and physical alteration processes to which the pristine interstellar matter is subjected until its incorporation into large bodies of a planetary system. The required input data for the mineralogical processes, e. g., annealing, evaporation, and growth processes, will be retrieved by mineralogical experiments in A1. The results will allow to predict the composition of the precursor material from which planetesimals and later planets are formed and to compare this with the observational material from bodies in our Solar System, e.g., cometary and meteoritic material, and with observations of protoplanetary accretion disks.

该项目的目的是根据数值模拟，为行星前盘内物质的早期矿物学和化学演化发展综合模型。一方面，这包括对圆盘结构和演化的建模，以及对圆盘内物质运输过程的建模，另一方面，对原始星际物质在融入行星系统的大型天体之前所经受的化学和物理变化过程的建模。所需的矿物过程输入数据，例如退火、蒸发和生长过程，将通过A1中的矿物实验检索。这些结果将使我们能够预测形成星子和后来的行星的前体物质的组成，并将其与我们太阳系中天体的观测物质（例如彗星和陨石物质）以及对原行星吸积盘的观测结果进行比较。