Non-linear radial oscillations of neutron stars: Mode-coupling results

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dc.creatorSperhake, Uli
dc.creatorPapadopoulos, Philippos
dc.creatorAndersson, Nils
dc.date2001-10-22
dc.date.accessioned2026-07-07T02:00:56Z
dc.date.available2026-07-07T02:00:56Z
dc.descriptionThe non-linear behaviour of oscillation modes in compact stars is a topic of considerable current interest. Accurate numerical studies of such phenomena are likely to require powerful new approaches to both fluid and spacetime computations. We propose that a key ingredient of such methods will be the non-linear evolution of deviations from the background stationary equilibrium star. We investigate the feasibility of this approach by applying it to non-linear radial oscillations of a neutron star, and explore numerically various non-linear features of this problem, for a large range of amplitudes. Quadratic and higher order mode coupling and non-linear transfer of energy is demonstrated and analysed in detail.
dc.description5 pages,5 eps figures, latex (mn2e style)
dc.identifierhttps://arxiv.org/abs/astro-ph/0110487
dc.identifierhttp://arxiv.org/abs/astro-ph/0110487
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/3581
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleNon-linear radial oscillations of neutron stars: Mode-coupling results
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