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Updated: Jul 9, 2026

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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
Las ondas magnetohidrodinámicas transversales coronales en una prominencia solar
T J Okamoto1, S Tsuneta, T E Berger
1National Astronomical Observatory (NAOJ), Mitaka, Tokyo 181-8588, Japan. joten.okamoto@nao.ac.jp
Resumen
Las prominencias solares son nubes de plasma frías. Las observaciones sugieren que las estructuras oscilantes son ondas de Alfvén, potencialmente calentando la corona solar.
Área de la Ciencia:
- La física del plasma es la física del plasma.
- La astrofísica solar es la astrofísica solar.
- La magnetohidrodinámica es una dinámica magnético-hidrodinámica.
Sus antecedentes:
- Las prominencias solares son nubes de plasma más frías (10^4 K) suspendidas dentro de la corona solar mucho más caliente (10^6 K).
- Los mecanismos que soportan estas protuberancias y el calentamiento de la corona siguen siendo en gran medida indeterminados.
- Se han observado estructuras a escala fina dentro de las prominencias.
Objetivo del estudio:
- Para investigar la naturaleza de las estructuras observadas a escala fina en las prominencias solares.
- Para determinar el papel potencial de estas estructuras en el calentamiento coronal.
- Para explorar la conexión entre las oscilaciones de prominencia y los campos magnéticos coronales.
Principales métodos:
- Análisis de las observaciones de alta resolución del satélite Hinode.
- Concéntrese en las estructuras en forma de hilo que oscilan en el plano del cielo.
- Interpretación de las oscilaciones en el contexto de la propagación de ondas en las líneas de campo magnético.
Principales resultados:
- Las estructuras en forma de hilo de escala fina observadas exhiben oscilaciones con períodos de varios minutos.
- Estas oscilaciones son consistentes con la propagación de las ondas de Alfvén.
- Las ondas de Alfvén viajan a lo largo de las líneas de campo magnético coronal.
Conclusiones:
- Las oscilaciones observadas probablemente representan ondas de Alfvén.
- Estas ondas de Alfvén pueden contribuir al calentamiento de la corona solar.
- Se necesita más investigación para confirmar el papel de las ondas de Alfvén en los mecanismos de calentamiento coronal.
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