How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | http://repositorio.unifesp.br/handle/11600/49353 http://dx.doi.org/10.1088/1742-6596/716/1/012019 |
Resumo: | It 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. |
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Costa, C. F. S.Magalhaes, N. S. [UNIFESP]2019-01-21T10:29:44Z2019-01-21T10:29:44Z201611th Edoardo Amaldi Conference On Gravitational Waves (AMALDI 11). Bristol, v. 716, p. UNSP 012019, 2016.1742-6588http://repositorio.unifesp.br/handle/11600/49353http://dx.doi.org/10.1088/1742-6596/716/1/012019WOS000386960500019.pdf10.1088/1742-6596/716/1/012019WOS:000386960500019It 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.University of Florida, Department of Physics 2001 Museum Road, 32611-8440 Gainesville, FL, USAFederal University of Sao Paulo, Department of Exact and Earth Sciences Rua Sao Nicolau 120, 09913-030 Diadema, SP, BrazilFederal University of Sao Paulo, Department of Exact and Earth Sciences Rua Sao Nicolau 120, 09913-030 Diadema, SP, BrazilWeb of ScienceUNSP 012019engHospital Clinicas, Univ Sao Paulo11th Edoardo Amaldi Conference On Gravitational Waves (AMALDI 11)Mario-SchenbergHow to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detectorinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALWOS000386960500019.pdfapplication/pdf1103178${dspace.ui.url}/bitstream/11600/49353/1/WOS000386960500019.pdf1211f84d7750a89576e15ac9560ddc80MD51open accessTEXTWOS000386960500019.pdf.txtWOS000386960500019.pdf.txtExtracted texttext/plain9770${dspace.ui.url}/bitstream/11600/49353/8/WOS000386960500019.pdf.txt85a8a68fa15b0449f0b78794d7d481b0MD58open accessTHUMBNAILWOS000386960500019.pdf.jpgWOS000386960500019.pdf.jpgIM Thumbnailimage/jpeg5302${dspace.ui.url}/bitstream/11600/49353/10/WOS000386960500019.pdf.jpg34433b868ec53a7424d80371baf054fbMD510open access11600/493532023-06-05 19:40:18.894open accessoai:repositorio.unifesp.br:11600/49353Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:40:18Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector |
title |
How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector |
spellingShingle |
How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector Costa, C. F. S. Mario-Schenberg |
title_short |
How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector |
title_full |
How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector |
title_fullStr |
How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector |
title_full_unstemmed |
How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector |
title_sort |
How to overcome limitations of analytic solutions when determining the direction of a gravitational wave using experimental data: an example with the schenberg detector |
author |
Costa, C. F. S. |
author_facet |
Costa, C. F. S. Magalhaes, N. S. [UNIFESP] |
author_role |
author |
author2 |
Magalhaes, N. S. [UNIFESP] |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Costa, C. F. S. Magalhaes, N. S. [UNIFESP] |
dc.subject.eng.fl_str_mv |
Mario-Schenberg |
topic |
Mario-Schenberg |
description |
It 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. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2019-01-21T10:29:44Z |
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2019-01-21T10:29:44Z |
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info:eu-repo/semantics/publishedVersion |
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dc.identifier.citation.fl_str_mv |
11th Edoardo Amaldi Conference On Gravitational Waves (AMALDI 11). Bristol, v. 716, p. UNSP 012019, 2016. |
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http://repositorio.unifesp.br/handle/11600/49353 http://dx.doi.org/10.1088/1742-6596/716/1/012019 |
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1742-6588 |
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WOS000386960500019.pdf |
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10.1088/1742-6596/716/1/012019 |
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WOS:000386960500019 |
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11th Edoardo Amaldi Conference On Gravitational Waves (AMALDI 11). Bristol, v. 716, p. UNSP 012019, 2016. 1742-6588 WOS000386960500019.pdf 10.1088/1742-6596/716/1/012019 WOS:000386960500019 |
url |
http://repositorio.unifesp.br/handle/11600/49353 http://dx.doi.org/10.1088/1742-6596/716/1/012019 |
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11th Edoardo Amaldi Conference On Gravitational Waves (AMALDI 11) |
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Hospital Clinicas, Univ Sao Paulo |
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Hospital Clinicas, Univ Sao Paulo |
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