The inverse problem for pulsating neutron stars: a 'fingerprint analysis' for the supranuclear equation of state |
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Authors: | K. D. Kokkotas T. A. Apostolatos N. Andersson |
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Affiliation: | Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54006, Greece;Max Planck Institute for Gravitational Physics, The Albert Einstein Institute, D-14473 Potsdam, Germany;Department of Physics, University of Athens, Athens, Greece;Department of Mathematics, University of Southampton, Southampton |
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Abstract: | We study the problem of detecting, and inferring astrophysical information from, gravitational waves from a pulsating neutron star. We show that the fluid f and p modes, as well as the gravitational-wave w modes, may be detectable from sources in our own Galaxy, and investigate how accurately the frequencies and damping rates of these modes can be inferred from a noisy gravitational-wave data stream. Based on the conclusions of this discussion we propose a strategy for revealing the supranuclear equation of state using the neutron star fingerprints: the observed frequencies of an f and a p mode. We also discuss how well the source can be located in the sky using observations with several detectors. |
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Keywords: | equation of state gravitation radiation mechanisms: non-thermal methods: analytical stars: neutron |
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