| 1. Identificação | ||||
| Tipo de Referência | Artigo em Evento (Conference Proceedings) | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34T/4B639HS | |||
| Repositório | sid.inpe.br/mtc-m21d/2024/04.17.15.22 | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21d/2024/04.17.15.22.09 | |||
| Última Atualização dos Metadados | 2024:05.06.14.04.12 (UTC) administrator | |||
| Chave Secundária | INPE--PRE/ | |||
| Chave de Citação | SilviaSVARASDMCMAWALL:2024:WhCaAu | |||
| Título | Why Can the Auroral-Type Sporadic E Layer Be Detected Over the South American Magnetic Anomaly (SAMA) Region? An Investigation of a Case Study Under the Influence of the HighSpeed Solar Wind Stream  | |||
| Ano | 2024 | |||
| Data de Acesso | 19 maio 2024 | |||
| Tipo Secundário | PRE CI | |||
| 2. Contextualização | ||||
| Autor | 1 Silvia, Ligia Alves da 2 Shi, Jiankui 3 Vieira, Luis Eduardo Antunes 4 Agapitov, Oleksiy 5 Resende, Laysa Cristina Araújo 6 Alves, Livia Ribeiro 7 Sibeck, David G. 8 Deggeroni, Vinicius 9 Marchezi, José Paulo 10 Chen, Sony Su 11 Moro, Juliano 12 Aras, Christina 13 Wang, Chi 14 Andrioli, Vânia Fátima 15 Liu, Zhengkuan 16 Li, Hui | |||
| Grupo | 1 DIHPA-CGCE-INPE-MCTI-GOV-BR 2 3 DIHPA-CGCE-INPE-MCTI-GOV-BR 4 5 DICEP-CGCE-INPE-MCTI-GOV-BR 6 DIHPA-CGCE-INPE-MCTI-GOV-BR 7 8 GESAST-CEA-DIPGR-INPE-MCTI-GOV-BR 9 DICEP-CGCE-INPE-MCTI-GOV-BR 10 GESAST-CEA-DIPGR-INPE-MCTI-GOV-BR 11 COESU-CGGO-INPE-MCTI-GOV-BR 12 13 14 DIHPA-CGCE-INPE-MCTI-GOV-BR | |||
| Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 China-Brazil Joint Laboratory for Space Weather 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 China-Brazil Joint Laboratory for Space Weather 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 China-Brazil Joint Laboratory for Space Weather 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Instituto Nacional de Pesquisas Espaciais (INPE) 10 Instituto Nacional de Pesquisas Espaciais (INPE) 11 Instituto Nacional de Pesquisas Espaciais (INPE) 12 China-Brazil Joint Laboratory for Space Weather 13 China-Brazil Joint Laboratory for Space Weather 14 Instituto Nacional de Pesquisas Espaciais (INPE) 15 China-Brazil Joint Laboratory for Space Weather 16 China-Brazil Joint Laboratory for Space Weather | |||
| Endereço de e-Mail do Autor | 1 ligia.alves01@gmail.com 2 3 luis.vieira@inpe.br 4 5 laysa.resende@inpe.br 6 livia.alves@inpe.br 7 8 vinicius.deggeroni@inpe.br 9 jose.marchezi@inpe.br 10 sony.chen@inpe.br 11 juliano.moro@inpe.br 12 13 14 vania.andrioli@inpe.br | |||
| Nome do Evento | Conferencia Latinoamericana de Geofísica Espacial, 14 | |||
| Localização do Evento | Monterrey, Mexico | |||
| Data | 08-12 Apr. 2024 | |||
| Título do Livro | Proceedings | |||
| Histórico (UTC) | 2024-04-17 15:22:09 :: simone -> administrator :: 2024-05-06 14:04:12 :: administrator -> simone :: 2024 | |||
| 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 | We present a study of the large amplitude longitudinal oscillations observed in two solar filaments (F1 and F2), prior to their eruptions. To analyze a possible implication of oscillations in the precursor processes of eruptive events, we analyzed the F1 and F2 oscillation periods and their variations during the pre- and post-eruption of filaments, the formation of coronal mass ejection (CME) and the corresponding magnetic field evolution. The F2 pre-eruption oscillations, exhibit a period of approximately 1 hour, aligning with previous reports. Applying a mathematical model and assuming a plasma density of 1.6 x 1011 cm-3 (Luna, M., & Karpen, J. 2012), we estimate the minimum magnetic field values of 95G for F1 and 33G for F2. Our results show that the F2s magnetic field is similar to previously reported values, while the F1s magnetic field is unexpectedly high and challenges previous estimations of the filaments magnetic field. In addition, we establish a connection between the onset of observed longitudinal oscillations and the appearance of new photospheric magnetic fluxes, triggering a magnetic reconnection process. The F2 pre-eruption oscillations are related to the F2 eruption and formation of the associated CME, while we note the absence of any CME immediately after the F1 eruption; although, F1 also undergoes pre-eruption oscillations, it is accompanied by a gradual and slow expansion of F1, unlike the F2, leading to the F1 eruption and formation of partial halo CME only four days after the onset of F1 expansion. A more detailed analysis, using wavelet techniques reveals the temporal variations of oscillation periods, suggesting a link with the filaments body expansion process and variation of filaments geometric properties, particularly their curvature radius. In summary, the proposed model indicates that the filament oscillation periods and their variations are highly correlated with the evolution of the filament geometric properties, the linked magnetic configuration, their eruption and formation of CMEs. More comprehensive studies are needed to verify our results. | |||
| Área | CEA | |||
| Conteúdo da Pasta doc | não têm arquivos | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| 4. Condições de acesso e uso | ||||
| Idioma | en | |||
| Grupo de Usuários | simone | |||
| Visibilidade | shown | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Repositório Espelho | urlib.net/www/2021/06.04.03.40.25 | |||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3F2PBEE 8JMKD3MGPCW/46KUBT5 | |||
| Acervo Hospedeiro | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notas | ||||
| Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url volume | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||