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El origen de la hoja de corriente heliosférica deformada
Science (New York, N.Y.)
|August 1, 1980
Resumen
Los investigadores mapearon la hoja de corriente heliosférica utilizando campos magnéticos fotosféricos. El modelo predijo con precisión la polaridad del campo magnético interplanetario, confirmando el campo fotosférico.
Área de la Ciencia:
- Heliofísica es la heliofísica.
- Física solar Física solar es la física de la energía solar.
- La magnetohidrodinámica es una dinámica magnético-hidrodinámica.
Sus antecedentes:
- La hoja de corriente heliosférica (HCS) separa las regiones de polaridad magnética opuesta en la heliosfera.
- Comprender la estructura del HCS es crucial para la predicción del clima espacial y la modulación de los rayos cósmicos.
Objetivo del estudio:
- Para calcular la hoja de corriente heliosférica deformada para principios de 1976.
- Para comparar el HCS calculado con la polaridad observada del campo magnético interplanetario (FMI).
Principales métodos:
- Método de campo potencial aplicado a los datos de campo magnético fotosférico observados.
- Comparación con las mediciones de polaridad in situ del FMI de Helios 1, Helios 2, Pioneer 11 y la Tierra.
Principales resultados:
- La hoja de corriente heliosférica deformada computarizada mostró un acuerdo detallado con la polaridad observada por el FMI.
- La estructura HCS a gran escala está determinada principalmente por la estructura del campo magnético fotosférico.
Conclusiones:
- El método de campo potencial es eficaz en el modelado de la HCS a gran escala.
- El campo magnético fotosférico dicta la forma general del HCS, con variaciones más pequeñas posiblemente debido a efectos de "falda de bailarina".
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