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1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemtc-m16c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP8W/364U5EE
Repositóriosid.inpe.br/mtc-m18@80/2009/09.22.14.08
Repositório de Metadadossid.inpe.br/mtc-m18@80/2009/09.22.14.08.51
Última Atualização dos Metadados2020:04.28.17.49.06 (UTC) administrator
Chave SecundáriaINPE--PRE/
Chave de CitaçãoMagalhãesPFMMOAJ:2009:SeMoSi
TítuloSearching for Monochromatic Signals in Gravitational Wave Detection
Ano2009
Data de Acesso16 jun. 2024
Tipo SecundárioPRE CN
2. Contextualização
Autor1 Magalhães, Nadja S.
2 Pires, Ricardo
3 Frajuca, Carlos
4 Melo, Rafael F.
5 Marinho Júnior, Rubens M.
6 Oliveria, Fernanda G.
7 Aguiar, Odylio Denys
8 Johson, Warren W.
Grupo1
2
3
4
5
6
7 DAS-CEA-INPE-MCT-BR
Afiliação1 UNIFESP
2 IFSP
3 IFSP
4 IFSP
5 ITA
6 ITA
7 Instituto Nacional de Pesquisas Espaciais (INPE)
8 LSU
Nome do EventoEncontro Nacional de Física de Partículas e Campos, 30.
Localização do EventoPassa Quatro, MG
Data14-18 set.
Histórico (UTC)2009-09-22 14:08:51 :: simone -> administrator ::
2020-04-28 17:49:06 :: administrator -> simone :: 2009
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
ResumoThis work focus on the detection of continuous gravitational wave signals. A new data analysis is proposed based on a method tailored for the detection of monochromatic signals in the middle of strong, white noise. Known in the literature as the Welch method, it basically makes power spectrum estimates using averaged modified periodograms. The averaging procedure reduces white noise, which is random, while evidencing monochromatic signals. Therefore, by using this method it is possible to obtain a power spectrum for the data which preserves peaks due to monochromatic signals. Then an analysis is performed on persistent peaks, searching for frequency drifts that might present a pattern similar to the one due to Doppler shifts. In gravitational wave detection two kinds of Doppler shifts are expected, with annual and daily periods. For the chosen data set of the ALLEGRO gravitational wave detector it was found that none of the strongest, persistent peaks investigated presented a frequency drift with a Doppler shift pattern, thus excluding them as gravitational wave signal candidates. The method proved useful even for very noisy data, by minimizing the noise to levels much inferior to the monochromatic signal ones and allowing the Doppler shift analysis. It can be used with interferometric detectors as well.
ÁreaCEA
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4. Condições de acesso e uso
Grupo de Usuáriossimone
administrator
Visibilidadeshown
Permissão de Leituraallow from all
5. Fontes relacionadas
Repositório Espelhosid.inpe.br/mtc-m18@80/2008/03.17.15.17.24
Unidades Imediatamente Superiores8JMKD3MGPCW/3ETR8EH
Acervo Hospedeirosid.inpe.br/mtc-m18@80/2008/03.17.15.17
6. Notas
Campos Vaziosarchivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi e-mailaddress edition editor electronicmailaddress format isbn issn keywords label language lineage mark nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume
7. Controle da descrição
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