| 1. Identificação | ||||
| Tipo de Referência | Artigo em Revista Científica (Journal Article) | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34T/4796R78 | |||
| Repositório | sid.inpe.br/mtc-m21d/2022/07.12.14.34 (acesso restrito) | |||
| Última Atualização | 2022:07.12.14.34.54 (UTC) simone | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21d/2022/07.12.14.34.54 | |||
| Última Atualização dos Metadados | 2023:01.03.16.46.09 (UTC) administrator | |||
| DOI | 10.3389/fspas.2022.911118 | |||
| ISSN | 2296-987X | |||
| Chave de Citação | SilvaSCSCWWBV:2022:GeAlMo | |||
| Título | A Genetic Algorithm to Model Solar Radio Active Regions From 3D Magnetic Field Extrapolations  | |||
| Ano | 2022 | |||
| Mês | June | |||
| Data de Acesso | 03 maio 2024 | |||
| Tipo de Trabalho | journal article | |||
| Tipo Secundário | PRE PI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 3532 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Silva, José Alexandre de Oliveira e 2 Selhorst, Caius Lucius 3 Costa, Joaquim Eduardo Rezende 4 Simões, Paulo J. A. 5 Castro, Carlos Guillermo Gimenez de 6 Wedemeyer, Sven 7 White, Stephen M. 8 Brajsa, Roman 9 Valio, Adriana | |||
| Identificador de Curriculo | 1 2 3 8JMKD3MGP5W/3C9JHF8 | |||
| Grupo | 1 2 3 DICEP-CGCE-INPE-MCTI-GOV-BR | |||
| Afiliação | 1 Universidade de São Paulo (USP) 2 Universidade de São Paulo (USP) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Universidade Presbiteriana Mackenzie 5 Universidade Presbiteriana Mackenzie 6 University of Oslo 7 Air Force Research Laboratory 8 University of Zagreb 9 Universidade Presbiteriana Mackenzie | |||
| Endereço de e-Mail do Autor | 1 2 caiuslucius@gmail.com 3 jercosta@gmail.com | |||
| Revista | Frontiers in Astronomy and Space Sciences | |||
| Volume | 9 | |||
| Páginas | e911118 | |||
| Histórico (UTC) | 2022-07-12 14:36:06 :: simone -> administrator :: 2022 2023-01-03 16:46:09 :: administrator -> simone :: 2022 | |||
| 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 | Sun radio radiation atmosphere magnetic fields force-free field extrapolation Sun-active regions | |||
| Resumo | In recent decades our understanding of solar active regions (ARs) has improved substantially due to observations made with better angular resolution and wider spectral coverage. While prior AR observations have shown that these structures were always brighter than the quiet Sun at centimeter wavelengths, recent observations at millimeter and submillimeter wavelengths have shown ARs with well defined dark umbrae. Given this new information, it is now necessary to update our understanding and models of the solar atmosphere in active regions. In this work, we present a data-constrained model of the AR solar atmosphere, in which we use brightness temperature measurements of NOAA 12470 at three radio frequencies: 17, 100 and 230 GHz. The observations at 17 GHz were made by the Nobeyama Radioheliograph (NoRH), while the observations at 100 and 230 GHz were obtained by the Atacama Large Millimeter/submillimeter Array (ALMA). Based on our model, which assumes that the radio emission originates from thermal free-free and gyroresonance processes, we calculate radio brightness temperature maps that can be compared with the observations. The magnetic field at distinct atmospheric heights was determined in our modelling process by force-free field extrapolation using photospheric magnetograms taken by the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory (SDO). In order to determine the best plasma temperature and density height profiles necessary to match the observations, the model uses a genetic algorithm that modifies a standard quiet Sun atmospheric model. Our results show that the height of the transition region (TR) of the modelled atmosphere varies with the type of region being modelled: for umbrae the TR is located at 1080 +/- 20 km above the solar surface; for penumbrae, the TR is located at 1800 +/- 50 km; and for bright regions outside sunspots, the TR is located at 2000 +/- 100 km. With these results, we find good agreement with the observed AR brightness temperature maps. Our modelled AR can be used to estimate the emission at frequencies without observational coverage. | |||
| Área | CEA | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > A Genetic Algorithm... | |||
| 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 | ||||
| Idioma | en | |||
| Arquivo Alvo | fspas-09-911118.pdf | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Permissão de Leitura | deny from all and allow from 150.163 | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/46KTFK8 | |||
| Lista de Itens Citando | sid.inpe.br/bibdigital/2022/04.03.17.52 1 sid.inpe.br/mtc-m21/2012/07.13.14.51.06 1 | |||
| Divulgação | WEBSCI; PORTALCAPES; SCOPUS. | |||
| Acervo Hospedeiro | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notas | ||||
| Campos Vazios | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||