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Towards gravitational-wave asteroseismology
Nils Andersson, Kostas D. Kokkotas
We present new results for pulsating neutron stars. We have calculated the eigenfrequencies of the modes that one would expect to be the most important gravitational-wave sources:…
A new class of unstable modes of rotating relativistic stars
Nils Andersson
The first numerical study of axial (toroidal) pulsation modes of a slowly rotating relativistic star is presented. The calculation includes terms of first order in $ε\equiv Ω\sqrt{…
Pulsation modes for increasingly relativistic polytropes
Nils Andersson, Kostas D. Kokkotas
We present the results of a numerical study of the fluid , and the gravitational modes for increasingly relativistic nonrotating polytropes. The results for and -…
Gravitational waves from pulsating stars: Evolving the perturbation equations for a relativistic star
Gabrielle Allen, Nils Andersson, Kostas D. Kokkotas +1
We consider the perturbations of a relativistic star as an initial-value problem. Having discussed the formulation of the problem (the perturbation equations and the appropriate bo…