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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21d.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34T/4835MPE
Repositóriosid.inpe.br/mtc-m21d/2022/11.18.12.29   (acesso restrito)
Última Atualização2022:11.18.12.29.28 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m21d/2022/11.18.12.29.28
Última Atualização dos Metadados2023:01.03.16.46.24 (UTC) administrator
DOI10.1007/s11207-022-02070-w
ISSN0038-0938
1573-093X
Chave de CitaçãoEcherFraCosHajBol:2022:UlObDu
TítuloSolar-Wind High-Speed Stream (HSS) Alfvén Wave Fluctuations at High Heliospheric Latitudes: Ulysses Observations During Two Solar-Cycle Minima
Ano2022
MêsNov.
Data de Acesso28 abr. 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho5510 KiB
2. Contextualização
Autor1 Echer, Ezequiel
2 Franco, Adriane Marques de Souza
3 Costa Júnior, Edio da
4 Hajra, Rajkumar
5 Bolzan, Maurício José Alves
Identificador de Curriculo1 8JMKD3MGP5W/3C9JH3D
Grupo1 DIHPA-CGCE-INPE-MCTI-GOV-BR
Afiliação1 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1 ezequiel.echer@inpe.br
RevistaSolar Physics
Volume297
Número11
Páginase143
Nota SecundáriaA2_INTERDISCIPLINAR A2_GEOCIÊNCIAS A2_BIOTECNOLOGIA B1_ENGENHARIAS_IV B1_ASTRONOMIA_/_FÍSICA B2_CIÊNCIA_DA_COMPUTAÇÃO
Histórico (UTC)2022-11-18 12:29:28 :: simone -> administrator ::
2023-01-03 16:46:24 :: administrator -> simone :: 2022
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-ChaveAlfvén waves
Coronal holes
Magnetic fields
interplanetary
Solar cycle
Solar wind
ResumoWe study Alfvén wave fluctuations in solar-wind high-speed streams (HSSs) at high heliolatitudes during the last two solar-cycle minima (SCM). Solar-wind plasma and interplanetary magnetic field (IMF) measured by Ulysses during four 50-day intervals in 1994, 1995, 2007, and 2008 were analyzed using wavelet and Fourier analyses, cross-correlation and kurtosis techniques. Intervals during 1994 and 1995 (2007 and 2008) correspond to the Ulysses polar passes through the southern and northern solar hemispheres, respectively, during the minimum between Cycles 22 and 23 or SCM22−23 (the minimum between Cycles 23 and 24 or SCM23−24). The solar-wind plasma density [Np], IMF magnitude [B], and IMF-component variances are found to be lower during SCM23−24 than during SCM22−23 by ≈ 20 30%. The cross-correlation between the plasma velocity and IMF vector components, an indicative of Alfvénicity, is smaller during SCM23−24 than during SCM22−23. The Alfvén wave periodicity exhibits a large range, from ≈ 8 hours to 10 days, with peak occurrences near 1 5 days during both minima. The statistical kurtosis analysis shows that the IMF distributions are mostly sub-Gaussian. Further, the Fourier power law analysis reveals a higher spectral power of transverse IMF components Bt and Bn than the radial field-aligned component Br. The power spectrum shows a spectral break near 10−4 Hz, with its high-frequency portion following a −1.7 power law dependence (Kolmogorov spectrum), while the low-frequency portion shows an ≈ − 1.0 power law index dependence. This low-frequency index is slightly higher during SCM22−23 (−0.65 to −0.87) than during SCM23−24 (−0.49 to −0.78). We conclude that while the Alfvénicity of the high-latitude HSSs does not vary substantially between the two minima, the amplitude of the Alfvén wave fluctuations is reduced during SCM23−24 compared to SCM22−23.
ÁreaCEA
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4. Condições de acesso e uso
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Grupo de Usuáriosself-uploading-INPE-MCTI-GOV-BR
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Política de Arquivamentodenypublisher denyfinaldraft12
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5. Fontes relacionadas
VinculaçãoTrabalho não Vinculado à Tese/Dissertação
Unidades Imediatamente Superiores8JMKD3MGPCW/46KTFK8
DivulgaçãoWEBSCI; PORTALCAPES; SCOPUS.
Acervo Hospedeirourlib.net/www/2021/06.04.03.40
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject targetfile tertiarytype url
7. Controle da descrição
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