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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21d.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34T/48NUC4L
Repositóriosid.inpe.br/mtc-m21d/2023/03.20.13.06
Última Atualização2023:03.20.13.06.14 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21d/2023/03.20.13.06.14
Última Atualização dos Metadados2024:01.02.17.16.41 (UTC) administrator
DOI10.1051/0004-6361/202243804
ISSN0004-6361
1432-0746
Chave de CitaçãoMericiaSWLNDRAFBQVWZMCFLS:2023:TeSyMo
TítuloTesting synchrotron models and frequency resolution in BINGO 21 cm simulated maps using GNILC
Ano2023
MêsMar.
Data de Acesso09 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho17682 KiB
2. Contextualização
Autor 1 Mericia, Eduardo Jubini de
 2 Santos, Larissa C. O.
 3 Wuensche, Carlos Alexandre
 4 Liccardo, Vincenzo
 5 Novaes, Camila Paiva
 6 Delabrouille, Jacques
 7 Remazeilles, Mathieu
 8 Abdalla, Filipe B.
 9 Feng, Chang
10 Barosi, Luciano
11 Queiroz, Amilcar
12 Villela Neto, Thyrso
13 Wang, Bin
14 Zhang, Jiajun
15 Marins, Alessandro
16 Costa, Andre A.
17 Ferreira, Elisa G. M.
18 Landim, Ricardo G.
19 Santos, Marcelo V. dos
Identificador de Curriculo 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12 8JMKD3MGP5W/3C9JJA6
Grupo 1 AST-CEA-DIPGR-INPE-MCTI-GOV-BR
 2
 3 DIAST-CGCE-INPE-MCTI-GOV-BR
 4 DIAST-CGCE-INPE-MCTI-GOV-BR
 5 DIAST-CGCE-INPE-MCTI-GOV-BR
 6
 7
 8
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10
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12 DIAST-CGCE-INPE-MCTI-GOV-BR
Afiliação 1 Instituto Nacional de Pesquisas Espaciais (INPE)
 2 YangZhou University
 3 Instituto Nacional de Pesquisas Espaciais (INPE)
 4 Instituto Nacional de Pesquisas Espaciais (INPE)
 5 Instituto Nacional de Pesquisas Espaciais (INPE)
 6 CNRS-UCB International Research Laboratory
 7 Instituto de Física de Cantabria
 8 Universidade de São Paulo (USP)
 9 University of Science and Technology of China
10 Universidade Federal de Campina Grande (UFCG)
11 Universidade Federal de Campina Grande (UFCG)
12 Instituto Nacional de Pesquisas Espaciais (INPE)
13 YangZhou University
14 Chinese Academy of Sciences
15 Universidade de São Paulo (USP)
16 YangZhou University
17 Universidade de São Paulo (USP)
18 Technische Universität München
19 Universidade Federal de Campina Grande (UFCG)
Endereço de e-Mail do Autor 1 ejubini@gmail.com
 2
 3 cawuensche@gmail.com
 4 vic2000@hotmail.it
 5 camilapnovaes@gmail.com
RevistaAstronomy and Astrophysics
Volume671
PáginasA58
Nota SecundáriaA1_GEOCIÊNCIAS A1_ENGENHARIAS_III A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_INTERDISCIPLINAR A2_ENGENHARIAS_IV A2_ASTRONOMIA_/_FÍSICA B2_ENSINO C_ENGENHARIAS_II
Histórico (UTC)2023-03-20 13:06:14 :: simone -> administrator ::
2023-03-20 13:06:15 :: administrator -> simone :: 2023
2023-03-20 13:10:46 :: simone -> administrator :: 2023
2024-01-02 17:16:41 :: administrator -> simone :: 2023
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-ChaveCosmology: observations
Methods: data analysis
ResumoContext. The 21 cm hydrogen line is arguably one of the most powerful probes with which to explore the Universe, from recombination to the present times. To recover it, it is essential to separate the cosmological signal from the much stronger foreground contributions at radio frequencies. The Baryon Acoustic Oscillations from Integrated Neutral Gas Observations (BINGO) radio telescope is designed to measure the 21 cm line and detect baryon acoustic oscillations (BAOs) using the intensity mapping (IM) technique. Aims. This work analyses the performance of the Generalized Needlet Internal Linear Combination (GNILC) method when combined with a power spectrum debiasing procedure. This method was applied to a simulated BINGO mission, building upon previous work from the collaboration. It compares two different synchrotron emission models and different instrumental configurations and takes into account ancillary data in order to optimize both the removal of foreground emission and the recovery of the 21 cm signal across the full BINGO frequency band and to determine an optimal number of frequency (redshift) bands for the signal recovery. Methods. We produced foreground emission maps using the Planck Sky Model (PSM) and generated cosmological HI emission maps using the Full-Sky Log-normal Astro-Fields simulation Kit (FLASK) package. We also created thermal noise maps according to the instrumental setup. We apply the GNILC method to the simulated sky maps to separate the HI plus thermal noise contribution and, through a debiasing procedure, recover an estimate of the noiseless 21 cm power spectrum. Results. We find a near-optimal reconstruction of the HI signal using an 80-bin configuration, which resulted in a power-spectrum reconstruction average error over all frequencies of 3%. Furthermore, our tests show that GNILC is robust against different synchrotron emission models. Finally, adding an extra channel with C-Band All-Sky Survey (CBASS) foregrounds information, we reduced the estimation error of the 21 cm signal. Conclusions. The optimization of our previous work, producing a configuration with an optimal number of channels for binning the data, significantly impacts decisions regarding BINGO hardware configuration before commissioning. We were able to recover the HI signal with good efficiency in the harmonic space, but have yet to investigate the effect of 1/f noise in the data, which will possibly impact the recovery of the HI signal. This issue will be addressed in forthcoming work.
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4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/8JMKD3MGP3W34T/48NUC4L
URL dos dados zipadoshttp://urlib.net/zip/8JMKD3MGP3W34T/48NUC4L
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Arquivo Alvoaa43804-22.pdf
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5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3F2NE4L
8JMKD3MGPCW/46KTFK8
Lista de Itens Citandosid.inpe.br/bibdigital/2013/10.12.16.06 3
sid.inpe.br/mtc-m21/2012/07.13.15.00.58 1
DivulgaçãoWEBSCI; PORTALCAPES; COMPENDEX; SCOPUS.
Acervo Hospedeirourlib.net/www/2021/06.04.03.40
6. Notas
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