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X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells
Published on: August 20, 2019
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Las ondas de Rossby en el Sol, tal como se revela por las "colinas" solares
1Institute for Astronomy, University of Hawaii, Honolulu 96822, USA. jkuhn@solar.stanford.edn
Nature
|June 13, 2000
Resumen
Los científicos han detectado 100 metros de altura.
Área de la Ciencia:
- Física solar Física solar es la física de la energía solar.
- La helioseismología.
- Dinámica de fluidos La dinámica de fluidos.
Sus antecedentes:
- El Sol exhibe una rotación diferencial, con velocidades ecuatoriales más rápidas que las regiones polares.
- Se han propuesto oscilaciones de modo Rossby (modo r), análogas a las ondas oceánicas terrestres, para explicar este fenómeno.
- Las oscilaciones del modo r solar están teóricamente limitadas por la rotación diferencial.
Objetivo del estudio:
- Para investigar el papel potencial de las oscilaciones de modo r en la rotación diferencial solar.
- Para identificar manifestaciones observables en la superficie de las oscilaciones del modo r solar.
Principales métodos:
- Análisis de las características de la superficie fotosférica.
- Medición de las alturas de las "colinas" y el espaciamiento en la superficie del Sol.
Principales resultados:
- Detección de "colinas" fotosféricas de 100 metros de altura.
- Un espaciado uniforme de estas características a través de la superficie del Sol, aproximadamente (8.7 +/- 0.6) x 10^4 km.
- Estas observaciones se alinean con las predicciones teóricas para las oscilaciones del modo r solar.
Conclusiones:
- La fotosfera ondulada observada es una probable firma de superficie de las oscilaciones solares en modo r.
- Las oscilaciones de modo R pueden organizar la convección debajo de la fotosfera, impulsando la rotación diferencial.
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