Theoretical and Numerical Studies in Gravitation and Relativistic Astrophysics

理论和数值研究将启动一个 引力物理和相对论中的一系列问题 天体物理学 主要内容包括：（1）发展 数值相对论技术及其在 模拟引力辐射源， 非线性动力学时空;（2）数值模拟 恒星在与大质量恒星近距离接触时的潮汐破裂 黑洞和破坏的可能相关性， 活动星系核的馈送;（3）计算 来自吸积盘和恒星的磁流体风 和发展的广义相对论MHD数值 （4）对最近发现的日食现象的研究 毫秒脉冲星1957+20。 这项工作的目标是 对自我吸引有了更深的理解， 动力系统和高能（相对论）现象。 这些物理研究中的许多依赖于使用大规模的 数值模拟技术 因此，有用的副产物 这些研究几乎总是新的和完善的数值 算法 与食脉冲星有关的项目 1957+20是一个更现象学的性质，并依赖于 理论计算和 观察证据

Theoretical and numerical studies will be initiated for an array of problems in gravitational physics and relativistic astrophysics. Topics of interest include (1) development of techniques in numerical relativity and their application in modeling sources of gravitational radiation and in exploring nonlinear, dynamical spacetimes; (2) numerical modeling of the tidal disruption of stars during close encounters with massive black holes and the possible relevance of disruption for feeding active galactic nuclei; (3) the calculation of magnetohydrodynamic (MHD) winds from accretion disks and stars and the development of a general relativistic MHD numerical scheme; and (4) a study of the recently discovered eclipsing millisecond pulsar 1957+20. The goal of this work is to acquire a deeper understanding of self-gravitating and dynamical systems and of high energy (relativistic) phenomena. Many of these physical studies rely upon the use of large-scale numerical modeling techniques. Accordingly, useful byproducts of such studies are almost invariably new and refined numerical algorithms. The project relating to the eclipsing pulsar 1957+20 is of a more phenomenological nature and relies upon the close interplay between theoretical calculation and observational evidence.