The inverse problem for pulsating neutron stars: a ‘fingerprint analysis’ for the supranuclear equation of state

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 fr...

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Bibliographic Details
Published inMonthly notices of the Royal Astronomical Society Vol. 320; no. 3; pp. 307 - 315
Main Authors Kokkotas, K. D., Apostolatos, T. A., Andersson, N.
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Science Ltd 21.01.2001
Subjects
equation of state
gravitation
methods: analytical
radiation mechanisms: non-thermal
stars: neutron
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Summary: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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ISSN:0035-8711
1365-2966
DOI:10.1046/j.1365-8711.2001.03945.x