| 1. Identificação | ||||
| Tipo de Referência | Artigo em Evento (Conference Proceedings) | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34R/3RFK4CL | |||
| Repositório | sid.inpe.br/mtc-m21c/2018/07.18.14.54 | |||
| Última Atualização | 2020:09.29.12.41.30 (UTC) simone | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21c/2018/07.18.14.54.28 | |||
| Última Atualização dos Metadados | 2020:09.29.12.41.31 (UTC) simone | |||
| Chave Secundária | INPE--PRE/ | |||
| Chave de Citação | Vieira:2018:EsSoLu | |||
| Título | Estimate of the solar luminosity variability for cycles 23 and 24  | |||
| Ano | 2018 | |||
| Data de Acesso | 06 maio 2024 | |||
| Tipo Secundário | PRE CI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 55 KiB | |||
| 2. Contextualização | ||||
| Autor | Vieira, Luís Eduardo Antunes | |||
| Grupo | DIDGE-CGCEA-INPE-MCTIC-GOV-BR | |||
| Afiliação | Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Endereço de e-Mail do Autor | luis.vieira@inpe.br | |||
| Nome do Evento | Cospar Scientific Assembly, 42 | |||
| Localização do Evento | Pasadena, California | |||
| Data | 14-22 July | |||
| Histórico (UTC) | 2018-07-18 14:58:11 :: simone -> administrator :: 2018 2019-01-04 16:57:07 :: administrator -> simone :: 2018 2019-01-07 14:00:47 :: simone -> administrator :: 2018 2019-01-14 17:06:31 :: administrator -> simone :: 2018 | |||
| 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 | |||
| Resumo | The effect of the solar activity on the solar luminosity, which is the total electromagnetic solar output, is one of the fundamental questions in solar physics. Changes of the solar luminosity can arise from changes of the energy flux in the convection zone that can also affects other solar parameters such as the surface temperature, the apparent radius and shape, and the symmetry of the radiative field itself. Additionally, understanding the latitudinal distribution of the flux density is needed to compare the solar variability and its stellar analogues. Nevertheless, our observations of the solar flux density are limited to a region near the ecliptic plane, which have provided just a raw estimate of the variability of the solar luminosity. Here we present a reconstruction of the solar flux density and solar luminosity for the solar cycle 23 and ascending phase of cycle 24. The reconstruction is based on a combination of a state-of-art solar surface magnetic flux transport model and a semi-empirical total and spectral irradiance model. The flux transport model is based on assimilation of MDI/ SOHO and HMI/SDO magnetograms. The irradiance models free parameters are estimated by minimizing the difference between the models output and the PMOD Composite of TSI measurements. We have obtained a good agreement between the models output and the measurements. The distribution of active regions leads to a clear low latitude brightening during the solar maximum. This brightening results from the balance of the contributions from bright (faculae and network) and dark features (sunspots) located in the solar surface, which peaks near the solar equator. As the effects of dark features are limited to a narrower region, the variability of the flux density at the poles is dominated by the evolution of faculae and network. The preliminary results indicate that the heat flux blocked by sunspots is lower than the flux leaked by bright features. Consequently, an increase of the luminosity through the cycle is observed as previously estimated based on near ecliptic measurements. This work also enables an assessment of the properties of solar variability when viewed from out of the ecliptic, i.e., such as we might be viewing other stars of solar activity level. Finally, the limitations of the model and future strategies to extend the reconstruction of the flux density and solar luminosity will be presented. | |||
| Área | CEA | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Estimate of the... | |||
| 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/8JMKD3MGP3W34R/3RFK4CL | |||
| URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W34R/3RFK4CL | |||
| Idioma | en | |||
| Arquivo Alvo | vieira_estimate.pdf | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3EU29DP | |||
| Lista de Itens Citando | sid.inpe.br/bibdigital@80/2006/04.07.15.50.13 1 | |||
| Acervo Hospedeiro | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notas | ||||
| Campos Vazios | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url volume | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||