Dynamics of Cometary Environments

这笔拨款支持贡博西博士为彗星环境建模所做的努力。这项工作的主旨将是进一步发展一个依赖于时间的、多维的内部彗发尘埃模型。此外，还将开发彗核-彗星界面、辐射传输过程以及彗星等离子体环境的新模型。与哈雷彗星和贾科比尼-津内尔彗星的历史性相遇已经开始使人们更好地了解控制彗星环境的主要物理和化学过程。现有信息的数量和质量的飞跃为新一代全面的彗星模型铺平了道路，该模型将综合我们在核形成、轨道演化、气体和尘埃排放、部分电离尘埃气流的动力学和空气动力学以及太阳风相互作用等不同领域的知识。新一代彗星模型将由各种群体和个人同时合作和竞争的一系列创新演变而来。贡博西博士将积极参与这项工作。

This grant supports Dr. Gombosi's efforts at modeling the environments of comets. The main thrust of the work will be the further development of a time-dependent, multidimensional dusty model of the inner coma. In addition, new models of the nucleus- coma interface, the radiative transfer processes, as well as the plasma environment of the comet will be developed. The historic encounters with comets Halley and Giacobini-Zinner have begun to lead to a better understanding of the major physical and chemical processes controlling cometary environments. The quantitative and qualitative leap of available information paved the road to a new generation of comprehensive comet models, which will synthesize our knowledge in such diverse areas as nucleus formation, orbital evolution, gas and dust emission, dynamics and aeronomy of partially ionized dusty gas flows, and solar wind interaction. A new generation of cometary models will evolve from a series of intitiatives by various groups and individuals simultaneously cooperating and competing. Dr. Gombosi will be an active participant in this effort.