How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector

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dc.contributor.authorCosta, C. F. S.
dc.contributor.authorMagalhaes, N. S. [UNIFESP]
dc.date.accessioned2019-01-21T10:29:44Z
dc.date.available2019-01-21T10:29:44Z
dc.date.issued2016
dc.description.abstractIt has been commonly assumed that analytic solutions can efficiently provide the direction of a gravitational wave (GW) once sufficient data is available from gravitational wave detectors. Nevertheless, we identified that such analytic solutions (based on the GW matrix reconstruction) present unforeseen theoretical and practical limitations (indeterminacies) and that for certain incoming directions they are unable to recover the latter. We present here important indeterminacy cases as well as a mathematical procedure that reduces such indeterminacies. Also, we developed a method that requires the least computational power to retrieve GW directions and which can be applied to any system of detectors able to reconstruct the GW matrix. As a test for the method, we used simulated data of the spherical, resonant mass GW detector Schenberg, which involves five oscillating modes and six transducer readouts. The results show that this method canceled indeterminacies out satisfactorily.en
dc.description.affiliationUniversity of Florida, Department of Physics 2001 Museum Road, 32611-8440 Gainesville, FL, USA
dc.description.affiliationFederal University of Sao Paulo, Department of Exact and Earth Sciences Rua Sao Nicolau 120, 09913-030 Diadema, SP, Brazil
dc.description.affiliationUnifespFederal University of Sao Paulo, Department of Exact and Earth Sciences Rua Sao Nicolau 120, 09913-030 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.format.extentUNSP 012019
dc.identifierhttp://dx.doi.org/10.1088/1742-6596/716/1/012019
dc.identifier.citation11th Edoardo Amaldi Conference On Gravitational Waves (AMALDI 11). Bristol, v. 716, p. UNSP 012019, 2016.
dc.identifier.doi10.1088/1742-6596/716/1/012019
dc.identifier.fileWOS000386960500019.pdf
dc.identifier.issn1742-6588
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/49353
dc.identifier.wosWOS:000386960500019
dc.language.isoeng
dc.publisherHospital Clinicas, Univ Sao Paulo
dc.relation.ispartof11th Edoardo Amaldi Conference On Gravitational Waves (AMALDI 11)
dc.rightsAcesso aberto
dc.subjectMario-Schenbergen
dc.titleHow to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detectoren
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