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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3798
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dc.contributor.authorArun, K.G.-
dc.contributor.authorMishra, Chandrakanth-
dc.contributor.authorBroeck, C.V.D.-
dc.contributor.authorIyer, B.R.-
dc.contributor.authorSathyaprakash, B.S.-
dc.contributor.authorSinha, Siddhartha-
dc.date.accessioned2009-07-22T08:04:30Z-
dc.date.available2009-07-22T08:04:30Z-
dc.date.issued2009-04-
dc.identifier.citationClassical and Quantum Gravity, 2009, Vol.26, p094021en
dc.identifier.issnE-ISSN: 1361-6382-
dc.identifier.issnP-ISSN: 0264-9381-
dc.identifier.urihttp://hdl.handle.net/2289/3798-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractRecently, it has been shown that the inclusion of higher signal harmonics in the inspiral signals of binary supermassive black holes (SMBH) leads to dramatic improvements in the parameter estimation with Laser Interferometer Space Antenna (LISA). In particular, the angular resolution becomes good enough to identify the host galaxy or galaxy cluster, in which case the redshift can be determined by electromagnetic means. The gravitational wave signal also provides the luminosity distance with high accuracy, and the relationship between this and the redshift depends sensitively on the cosmological parameters, such as the equation-of-state parameter w = pDE/ρDE of dark energy. Using binary SMBH events at z < 1 with appropriate masses and orientations, one would be able to constrain w to within a few per cent. We show that, if the measured sky location is folded into the error analysis, the uncertainty on w goes down by an additional factor of 2–3, leaving weak lensing as the only limiting factor in using LISA as a dark energy probe.en
dc.language.isoenen
dc.publisherInstitute of Physics Publishing (IOP)en
dc.relation.urihttp://dx.doi.org/10.1088/0264-9381/26/9/094021en
dc.relation.urihttp://arxiv.org/abs/0810.5727en
dc.relation.urihttp://adsabs.harvard.edu/abs/2009CQGra..26i4021Aen
dc.rights2009 IOP Publishing Ltd.en
dc.titleLISA as a dark energy probeen
dc.typeArticleen
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