U.S.-U.K. Collaborative Research: Origin of the Solar System

该奖项将支持太阳能领域的合作研究 系统天文学之间的道格拉斯林博士， 加州的圣克鲁斯，以及三位英国科学家。 Sverre Aarseth，剑桥大学天文研究所， 和博士约翰Papaloizou和菲利普帕尔默，学校 数学科学，皇后玛丽和韦斯特菲尔德学院， 伦敦。 该项目的目的是调查 原类地行星和原巨星的形成 太阳星云环境中的行星核心。 具体任务是：1）建立分析模型 对于星子动力学，2）进行N体 数值模拟研究的动态演变和 星子的大规模凝聚，3）调查 水动力阻力和潮汐相互作用对 微行星和原行星的动力学，以及4） 确定原行星的动力学影响 太阳星云的结构和演化。 这些 理论研究将进行援助， 分析形式主义和数值格式最近 由调查人员开发。 太阳系数据 原恒星的探测和地面观测 年轻恒星周围的圆盘将被用来限制 理论模型。该项目将受益于 调查人员的补充专业知识及其 过去的成功合作。 成果 研究将有助于了解 太阳系最突出的问题之一， 天体物理学和行星科学。

This award will support collaborative research in solar system astronomy between Dr. Douglas Lin, University of California at Santa Cruz, and three British scientists: Dr. Sverre Aarseth, Institute of Astronomy, Cambridge University, and Drs. John Papaloizou and Philip Palmer, School of Mathematical Sciences, Queen Mary and Westfield College, London. The objective of the project is to investigate the formation of prototerrestrial planets and protogiant planetary cores in the solar nebula environment. The specific tasks are: 1) to develop an analytical model for the dynamics of planetesimals, 2) to carry out N-body numerical simulations to examine the dynamical evolution and mass coagulation of planetesimals, 3) to investigate the effects of hydrodynamic drag and tidal interaction on the dynamics of planetesimals and protoplanets, and 4) to determine the dynamical impact of protoplanets on the structure and evolutions of the solar nebula. These theoretical investigations will be carried out with the aid of analytic formalisms and numerical schemes recently developed by the investigators. Data from solar system exploration and ground based observations of protostellar disks around young stellar objects will be used to constrain theoretical models. The project will benefit from the complementary expertise of the investigators and their successful history of past collaboration. Results of this research will contribute to the understanding of the origin of the solar system, one of the most outstanding problems in astrophysics and planetary science.