Non-linear Tidal Interaction of Stars and Black Holes

惠勒，J·克雷格·AST94-17083这个研究项目旨在了解恒星潮汐相互作用的非线性效应。我们将使用三维、高分辨率、有限差分的数值技术来研究恒星内部的混合以及各种恒星振荡和表面波的非线性激发。将模拟恒星经过大质量Schwarzschild和Kerr黑洞时的激发、剥离和分裂，考虑到相对论效应、现实的状态方程和核反应。将获得各种恒星的破坏极限，包括被捕获的恒星与黑洞的多次相遇，以及白矮星和中子星在圆形轨道上的破坏。本课程将考虑大质量黑洞的燃料供应、潮汐相互作用引发的超新星规模爆炸以及引力波辐射。***

Wheeler, J. Craig AST 94-17083 This program of research is directed at understanding the non-linear effects of tidal interaction of stars. Mixing of stellar interiors and non-linear excitation of various modes of stellar oscillations and surface waves will be studied using a three-dimensional, high resolution, finite-difference numerical technique. Excitation, stripping and disruption of stars passing by massive Schwarzschild and Kerr black holes will be simulated, taking into account relativistic effects, realistic equation of state and nuclear reactions. Disruption limits for various kinds of stars will be obtained, including multiple encounters of captured stars with the black hole and the disruption of white dwarfs and neutron stars on circular orbits. Implications for fueling of massive black holes, supernova scale explosions triggered by tidal interaction, and gravitation wave radiation will be considered. ***