| 1. Identificação | |
| Tipo de Referência | Resumo em Evento (Conference Proceedings) |
| Site | mtc-m16.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 6qtX3pFwXQZsFDuKxG/Fc37k |
| Repositório | sid.inpe.br/marciana/2005/02.16.14.49 |
| Última Atualização | 2018:12.12.15.52.46 (UTC) marciana |
| Repositório de Metadados | sid.inpe.br/marciana/2005/02.16.14.49.09 |
| Última Atualização dos Metadados | 2018:12.12.15.52.47 (UTC) marciana |
| Chave Secundária | INPE--PRE/ |
| Rótulo | self-archiving-INPE-MCTIC-GOV-BR |
| Chave de Citação | MadsenFernCecaSawa:2004:ChIrDe |
| Título | Chromospheric irregularities in density associated with decimetric fine structures  |
| Ano | 2004 |
| Data de Acesso | 26 jun. 2024 |
| Tipo Secundário | PRE CI |
| Número de Arquivos | 1 |
| Tamanho | 199 KiB |
| 2. Contextualização | |
| Autor | 1 Madsen, F. R. H. 2 Fernandes, Francisco Carlos Rocha 3 Cecatto, José Roberto 4 Sawant, Hanumant Shankar |
| Grupo | 1 DAS-INPE-MCT-BR 2 3 DAS-INPE-MCT-BR 4 DAS-INPE-MCT-BR |
| Nome do Evento | Latin-American Conference on Space Geophysics, 7 (COLAGE). |
| Localização do Evento | Atibaia |
| Data | 29 Mar. - 2 Abr. 2004 |
| Editora (Publisher) | INPE |
| Título do Livro | Abstracts |
| Histórico (UTC) | 2005-02-16 16:49:10 :: jefferson -> administrator :: 2014-09-29 15:41:25 :: administrator -> marciana :: 2004 2014-10-08 19:10:15 :: marciana -> administrator :: 2004 2018-06-05 01:21:32 :: administrator -> marciana :: 2004 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Palavras-Chave | solar flare density irregularities radio bursts decimetric fine structures |
| Resumo | Here we present a new method for inferring the scale size of the chomospheric irregularities in density by observing dynamic spectra of solar bursts. Brazilian Solar Spectroscope (BSS), operating in the frequency range of (1000-2500) MHz with high time and frequency resolutions for the last ten years, has observed various fine structures showing intensity variations as a function of time and frequency. These fine structures can be explained by various types of plasma emission mechanisms and or propagation effects. We have analyzed a group of fine structures observed by BSS, from August to October/2001, associated with decimetric type III bursts, showing variation of intensity as a function of frequency and curvatures in the frequency-time plane. In particular, these fine structures presented emission gaps of 50-100 MHz, and curvatures in the frequency-time plane exhibiting larger delay at the low frequency edge. Thus, the emission gaps and curvatures can be explained as a propagation effect due to chromospheric density inhomogeneities lying in the line-of-sight path between the observer and the radio source. If emitted frequencies are lower than the plasma frequency of the inhomogeneity, there will be absorption over a certain band, corresponding to the dimension of the inhomogeneity. The curved like structures are due to lower group velocities of the lower frequencies in the density inhomogeneities. These investigations enable us to determine the dimensions of the irregularities. Scale sizes of the irregularities obtained are of the order of 10-10000 km. Densities of the irregularities are of the order of 3% above the local ambient density. Keywords:. |
| Área | CEA |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Chromospheric irregularities in... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| URL dos dados | http://urlib.net/ibi/6qtX3pFwXQZsFDuKxG/Fc37k |
| URL dos dados zipados | http://urlib.net/zip/6qtX3pFwXQZsFDuKxG/Fc37k |
| Idioma | pt |
| Grupo de Usuários | administrator jefferson marciana |
| Visibilidade | shown |
| Permissão de Leitura | allow from all |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ETR8EH |
| Acervo Hospedeiro | sid.inpe.br/banon/2003/08.15.17.40 |
| 6. Notas | |
| Campos Vazios | affiliation archivingpolicy archivist callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor electronicmailaddress format isbn issn lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisheraddress readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |