53 citations · 53 across the 1 of their papers we have counts for
7 papers
The w-mode instability of ultracompact relativistic stars
K. D. Kokkotas, J. Ruoff, N. Andersson
In this article we show that the, mainly spacetime, w-modes may become unstable in a rotating ultracompact () relativistic star. We provide results for the axial modes of a r…
Inertial modes of slowly rotating relativistic stars in the Cowling approximation
Johannes Ruoff, Adamantios Stavridis, Kostas D. Kokkotas
We study oscillations of slowly rotating relativistic barotropic as well as non-barotropic polytropic stars in the Cowling approximation, including first order rotational correctio…
Evolution equations for the perturbations of slowly rotating relativistic stars
Johannes Ruoff, Adamantios Stavridis, Kostas D. Kokkotas
We present a new derivation of the equations governing the oscillations of slowly rotating relativistic stars. Previous investigations have been mostly carried out in the Regge-Whe…
Radial oscillations of relativistic stars
Kostas. D. Kokkotas, Johannes Ruoff
We present a new survey of the radial oscillation modes of neutron stars. This study complements and corrects earlier studies of radial oscillations. We present an extensive list o…
The Numerical Evolution of Neutron Star Oscillations
Johannes Ruoff
The present work investigates the numerical evolution of linearized oscillations of non-rotating, spherically symmetric neutron stars within the framework of general relativity. We…
Excitation of Neutron Star Oscillations by an Orbiting Particle
Johannes Ruoff, Pablo Laguna, Jorge Pullin
The excitation of neutron stars is expected to be an important source of gravitational radiation. Of fundamental importance is then to investigate mechanisms that trigger oscillati…