Fechar

1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Siteplutao.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
IdentificadorJ8LNKAN8RW/3D53B3F
Repositóriodpi.inpe.br/plutao/2012/11.28.14.51.13
Última Atualização2013:07.30.18.14.22 (UTC) administrator
Repositório de Metadadosdpi.inpe.br/plutao/2012/11.28.14.51.14
Última Atualização dos Metadados2018:06.05.00.01.59 (UTC) administrator
Chave SecundáriaINPE--PRE/
DOI10.1051/0004-6361/201118482
ISSN0004-6361
1432-0746
Rótulolattes: 9310663564448564 1 NovaesWuen:2012:IdGaCl
Chave de CitaçãoNovaesWuen:2012:IdGaCl
TítuloIdentification of galaxy clusters in cosmic microwave background maps using the Sunyaev-Zel'dovich effect
ProjetoCNPq (2010/300400-3).
Ano2012
Data de Acesso30 abr. 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho1361 KiB
2. Contextualização
Autor1 Novaes, Camila Paiva
2 Wuensche, Carlos Alexandre
Grupo1
2 DAS-CEA-INPE-MCTI-GOV-BR
Afiliação1
2 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1 camilapnovaes@gmail.com
2 ca.wuensche@inpe.br
Endereço de e-Mailcamilapnovaes@gmail.com
RevistaAstronomy & Astrophysics
Volume545
NúmeroA34
PáginasA34
Nota SecundáriaA2_ASTRONOMIA_/_FÍSICA A1_ENGENHARIAS_II B1_ENGENHARIAS_IV B5_ENSINO_DE_CIÊNCIAS_E_MATEMATICA A1_GEOCIÊNCIAS A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA
Histórico (UTC)2012-11-28 23:06:24 :: lattes -> administrator :: 2012
2012-11-30 03:40:14 :: administrator -> marciana :: 2012
2013-01-18 14:49:19 :: marciana -> administrator :: 2012
2018-06-05 00:01:59 :: administrator -> marciana :: 2012
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-Chavegalaxy clusters
simulations
independent component analysis
blind separation
ResumoThe Planck satellite was launched in 2009 by the European Space Agency to study the properties of the cosmic microwave background (CMB). An expected result of the Planck data analysis is the distinction of the various contaminants of the CMB signal. Among these contaminants is the Sunyaev-Zel'dovich (SZ) effect, which is caused by the inverse Compton scattering of CMB photons by high energy electrons in the intracluster medium of galaxy clusters. We modify a public version of the JADE (Joint Approximate Diagonalization of Eigenmatrices) algorithm, to deal with noisy data, and then use this algorithm as a tool to search for SZ clusters in two simulated datasets. Methods. The first dataset is composed of simple "homemade" simulations and the second of full sky simulations of high angular resolution, available at the LAMBDA (Legacy Archive for Microwave Background Data Analysis) website. The process of component separation can be summarized in four main steps: (1) pre-processing based on wavelet analysis, which performs an initial cleaning (denoising) of data to minimize the noise level; (2) the separation of the components (emissions) by JADE; (3) the calibration of the recovered SZ map; and (4) the identification of the positions and intensities of the clusters using the SExtractor software. The results show that our JADE-based algorithm is effective in identifying the position and intensity of the SZ clusters, with the purities being higher then 90% for the extracted "catalogues". This value changes slightly according to the characteristics of noise and the number of components included in the input maps. The main highlight of our developed work is the effective recovery rate of SZ sources from noisy data, with no a priori assumptions. This powerful algorithm can be easily implemented and become an interesting complementary option to the "matched filter" algorithm (hereafter MF) widely used in SZ data analysis.
ÁreaCEA
Arranjourlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Identification of galaxy...
Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreementnão têm arquivos
4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/J8LNKAN8RW/3D53B3F
URL dos dados zipadoshttp://urlib.net/zip/J8LNKAN8RW/3D53B3F
Idiomapt
Arquivo Alvo1211.5843v1.pdf
Grupo de Usuáriosadministrator
lattes
marciana
Grupo de Leitoresadministrator
marciana
Visibilidadeshown
Política de Arquivamentoallowpublisher allowfinaldraft
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3ETR8EH
DivulgaçãoWEBSCI; PORTALCAPES; MGA; COMPENDEX.
Acervo Hospedeirodpi.inpe.br/plutao@80/2008/08.19.15.01
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn lineage mark mirrorrepository month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress readpermission resumeid rightsholder schedulinginformation secondarydate session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
e-Mail (login)marciana
atualizar 


Fechar