| 1. Identificação | ||||
| Tipo de Referência | Artigo em Revista Científica (Journal Article) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34P/3KTDLSS | |||
| Repositório | sid.inpe.br/mtc-m21b/2016/01.06.18.04 | |||
| Última Atualização | 2016:01.06.18.05.13 (UTC) administrator | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2016/01.06.18.04.21 | |||
| Última Atualização dos Metadados | 2021:07.28.23.02.13 (UTC) administrator | |||
| DOI | 10.1051/0004-6361/201526713 | |||
| ISSN | 0004-6361 1432-0746 | |||
| Chave de Citação | SantosCabeVillZhao:2015:InPlFo | |||
| Título | Influence of Planck foreground masks in the large angular scale quadrant CMB asymmetry  | |||
| Ano | 2015 | |||
| Mês | Dec. | |||
| Data de Acesso | 19 abr. 2024 | |||
| Tipo de Trabalho | journal article | |||
| Tipo Secundário | PRE PI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 745 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Santos, L. 2 Cabella, P. 3 Villela, Thyrso 4 Zhao, W. | |||
| Grupo | 1 2 3 DAS-CEA-INPE-MCTI-GOV-BR | |||
| Afiliação | 1 University of Sciences and Technology of China 2 Universita di Roma 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Chinese Academy of Sciences | |||
| Revista | Astronomy & Astrophysics | |||
| Volume | 584 | |||
| Número | A115 | |||
| Nota Secundária | A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_INTERDISCIPLINAR A2_ENGENHARIAS_IV A2_ASTRONOMIA_/_FÍSICA B2_ENSINO C_ENGENHARIAS_II | |||
| Histórico (UTC) | 2016-01-06 18:04:21 :: simone -> administrator :: 2021-07-28 23:02:13 :: administrator -> simone :: 2015 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Tipo do Conteúdo | External Contribution | |||
| Tipo de Versão | publisher | |||
| Palavras-Chave | Cosmic background radiation Cosmology: observations Methods: data analysis Methods: statistical | |||
| Resumo | The measured cosmic microwave background (CMB) angular distribution shows high consistency with the ΛCDM model, which predicts cosmological isotropy as one of its fundamental characteristics. However, isotropy violations were reported in CMB temperature maps of the Wilkinson Microwave Anisotropy Probe (WMAP) and confirmed by Planck satellite data. Aims. Our purpose is to investigate the influence of different sky cuts (masks) employed in the analysis of CMB angular distribution, in particular in the excess of power in the southeastern quadrant (SEQ) and the lack of power in the northeastern quadrant (NEQ), found in both WMAP and Planck data. Methods. We compared the two-point correlation function (TPCF) computed for each quadrant of the CMB foreground-cleaned temperature maps to 1000 Monte Carlo (MC) simulations generated assuming the ΛCDM best-fit power spectrum using four different masks, from the least to the most severe one: mask-rulerminimal, UT78, U73, and U66. In addition to the quadrants and for a better understanding of these anomalies, we computed the TPCF using the mask-rulerminimal for circular regions in the map where the excess and lack of power are present. We also compared, for completeness, the effect of Galactic cuts (+/-10, 20, 25, and 30 degrees above/below the Galactic plane) in the TPCF calculations as compared to the MC simulations. Results. We found consistent results for three masks, namely mask-rulerminimal, U73, and U66. The results indicate that the excess of power in the SEQ tends to vanish as the portion of the sky covered by the mask increases and the lack of power in the NEQ remains virtually unchanged. A different result arises for the newly released UT78 Planck mask. When this mask is applied, the NEQ is no longer anomalous. On the other hand, the excess of power in the SEQ becomes the most significant one among the masks. Nevertheless, the asymmetry between the SEQ and NEQ is independent of the mask and it disagrees with the isotropic model with at least 95% C.L. Conclusions. We find that UT78 disagrees with the other analyzed masks, especially when considering the SEQ and the NEQ individual analysis. Most important, the use of UT78 washes out the anomaly in the NEQ. Furthermore, we find an excess of kurtosis, compared with simulations, in the NEQ for the regions not masked by UT78 but masked by the other masks, indicating that the previous result could be due to unremoved residual foregrounds by UT78. | |||
| Área | CEA | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Influence of Planck... | |||
| Conteúdo da Pasta doc | acessar | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| 4. Condições de acesso e uso | ||||
| URL dos dados | http://urlib.net/ibi/8JMKD3MGP3W34P/3KTDLSS | |||
| URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W34P/3KTDLSS | |||
| Idioma | en | |||
| Arquivo Alvo | santos.pdf | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Política de Arquivamento | allowpublisher allowfinaldraft | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Repositório Espelho | sid.inpe.br/mtc-m21b/2013/09.26.14.25.22 | |||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ETR8EH | |||
| Lista de Itens Citando | ||||
| Divulgação | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. | |||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress electronicmailaddress format isbn label lineage mark nextedition notes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||