Composition of planets with an N-body-Monte-Carlo approach

通过系外行星光谱学和质量/半径关系，我们对系外行星的组成有了越来越多的了解。目前的数据表明存在很大的差异。一个大问题是：这种多样性是否是由于这些行星形成的拱星原行星盘的不同初始条件造成的？还是因为多行星系统形成的内在混沌性质？该项目的目标是开发一种新的混合N体-蒙特-卡罗代码，该代码将能够解决诸如此类的问题，并可以跟踪不同成分（如硅酸盐，金属和各种冰物种）从初始尘埃阶段到最终岩石和气态行星的路径。代码将是非常模块化的，因此它可以很容易地适应不同的任务。我们打算将其公开，首先在SPP内，然后完全公开。

With exoplanet spectroscopy and mass/radius relations we are obtaining more and more insight into the composition of extrasolar planets. Current data suggests a large diversity. A big question is: is this diversity due to different initial conditions of the circumstellar protoplanetary disks in which these planets are formed? Or is it because of the intrinsically chaotic nature of the formation of multi-planet systems? The goal of this project is to develop a new hybrid N-body-Monte-Carlo code that will be able to address questions such as these, and can follow the path that different constituents (such as silicates, metals and various ice species) follow from the initial dust phase to the final rocky and gaseous planets. The code will be very modular, so that it can be easily adaptable to different tasks. And we intend to make it publicly available, first within the SPP and later completely.