Research in Gravitation Theory and Astrophysics

这项研究主要涉及对天体物理情况的调查，在这些情况下，强大的引力场发挥着有趣的作用。我们将研究快速自转中子星的振荡和稳定性。这里最感兴趣的是长期的不稳定性，这些不稳定性被粘度和引力辐射反应的耗散效应所缓和。还将研究形成耗散流体的相对论理论的问题。整体理论的因果关系和平衡态的结构和稳定性是根本利益所在。完全理解广义相对论中平衡恒星模型对称性的尝试将继续下去(例如，“所有静态恒星都是球形的吗？”)。最后，我们将评估超流性对旋转中子星的振荡和稳定性的影响。电荷超流体混合物的复杂动力学对宏观振荡的影响以及粘性效应对宏观振荡的抑制是特别有趣的。

This research is primarily concerned with the investigation of astrophysical situations in which strong gravitational fields play an interesting role. The oscillations and stability of rapidly rotating neutron stars will be investigated. Of primary interest here are the secular instabilities that are moderated by the dissipative effects of viscosity and gravitational-radiation reaction. Investigations will also be made into the problem of formulating a relativistic theory of dissipative fluids. The causality of the overall theory and the structure and stability of the equilibrium states are of fundamental interest. The attempts to understand completely the symmetries of equilibrium stellar models in general relativity theory will continue (e.g., "Are all static stars spherical?"). Finally, the effects of superfluidity on the oscillations and stability of rotating neutron stars will be evaluated. The influence of the complicated dynamics of a charge superfluid mixture on the macroscopic oscillations and the damping of these oscillation by viscous effects are of particular interest.