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Los agujeros coronales polares y la modulación de rayos cósmicos
Science (New York, N.Y.)
|February 15, 1980
Resumen
El tamaño del agujero coronal polar coincide con la intensidad de los rayos cósmicos durante el ciclo de las manchas solares. Esto sugiere que la modulación de rayos cósmicos es un efecto 3D vinculado al campo magnético interplanetario.
Área de la Ciencia:
- La física espacial es la física del espacio.
- Heliofísica es la heliofísica.
- La astrofísica es la astrofísica.
Sus antecedentes:
- La intensidad de los rayos cósmicos exhibe una variación cíclica vinculada al ciclo de las manchas solares.
- Los mecanismos exactos que modulan los rayos cósmicos, particularmente durante un ciclo solar, aún están bajo investigación.
- Estudios anteriores han propuesto que la actividad solar influye en la propagación de los rayos cósmicos.
Objetivo del estudio:
- Para investigar la relación entre el tamaño del agujero coronal polar y la intensidad de los rayos cósmicos.
- Proporcionar evidencia que apoye la naturaleza tridimensional de la modulación de rayos cósmicos.
- Explorar el papel del campo magnético interplanetario en la modulación del ciclo solar de los rayos cósmicos.
Principales métodos:
- Comparación de datos de observación sobre el tamaño de los agujeros coronales polares.
- Análisis de las mediciones de la intensidad de los rayos cósmicos.
- Análisis de correlación durante el ciclo de manchas solares más reciente.
Principales resultados:
- Se observó una estrecha correspondencia entre el tamaño de los agujeros coronales polares y la intensidad de los rayos cósmicos.
- Los hallazgos apoyan la hipótesis de que la modulación de rayos cósmicos es un fenómeno global tridimensional.
- Los resultados indican un probable vínculo entre esta modulación y la estructura general del campo magnético interplanetario.
Conclusiones:
- El tamaño de los agujeros coronales polares es un indicador significativo de las variaciones de intensidad de los rayos cósmicos.
- La modulación de los rayos cósmicos a lo largo del ciclo de las manchas solares es probablemente un efecto tridimensional.
- La estructura global del campo magnético interplanetario juega un papel crucial en la modulación de los rayos cósmicos.
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