Perturbations of slowly rotating relativistic stars

摘要

In our presentation we focus on oscillations of slowly rotating neutron stars. For that case we show in particular results of the numerically calculated time evolution of the fluid- and the metric-perturbations of the linearized Einstein field equations, thus without the frequently used Cowling approximation. By including also the metric-perturbations we are able to determine the error of the Cowling approximation and increase the accuracy of the resulting frequencies.