Collaborative Research: Modeling Gravitational Collapse

我们将研究引力崩塌的过程，重点是强场效应和黑洞形成的阈值。这项工作将研究各种具有轴对称的物质场的崩塌。为了考虑更多的场和更极端的情况，已经开发并成功测试了轴对称真空引力坍缩和标量场坍缩的数值程序将向新的方向扩展。在这些方向中包括了自适应网格细化，这将为大动态范围提供高分辨率。除了电磁外，还将增加一个重力自由度。我们将继续研究黑洞与玻色子恒星的正面碰撞，这项工作将加深人们对强场引力的理解，并将为黑洞的形成和演化提供新的重要的动力学结果。此外，这项工作将有助于正在进行的计算实验室的开发，利用该实验室探索宇宙中的引力过程和天体物理对象。

The process of gravitational collapse with an emphasis on strong field effects and the threshold of black hole formation will be studied. This work will examine the collapse of a variety of matter fields with axial symmetry. A numerical code which has been developed and successfully tested for vacuum gravitational collapse and scalar field collapse in axisymmetry will be extended in new directions in order to consider additional fields and more extreme scenarios. Included in these directions is the incorporation of adaptive mesh refinement which will provide high resolution for large dynamic ranges. An additional gravitational degree of freedom will be added as well as electromagnetism. Work will continue on examining the head-on collision of black holes and boson stars using black hole excision.This work will advance understanding of strong field gravity and will provide new and important dynamical results concerning black hole formation and evolution. In addition, this work will aid in the ongoing development of a computational laboratory with which to explore the gravitational processes and astrophysical objects in the universe.