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arxiv: gr-qc/9711088 · v1 · submitted 1997-11-28 · 🌀 gr-qc · astro-ph

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Towards gravitational-wave asteroseismology

Nils Andersson (Washington University) , Kostas D. Kokkotas (Aristotle University of Thessaloniki)
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classification 🌀 gr-qc astro-ph
keywords gravitational-wavefirstmassmodesradiusstarasteroseismologycalculated
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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: the fundamental fluid f-mode, the first pressure p-mode and the first gravitational-wave w-mode, for twelve realistic equations of state. From this numerical data we have inferred a set of ``empirical relations'' between the mode-frequencies and the parameters of the star (the radius R and the mass M). Some of these relation prove to be surprisingly robust, and we show how they can be used to extract the details of the star (radius, mass, eos) from observed modes with errors no larger than a few percent.

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Cited by 3 Pith papers

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