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Estudios de campo magnético en Júpiter por Voyager 2: resultados preliminares
Science (New York, N.Y.)
|November 23, 1979
Resumen
Los datos de la Voyager 2 revelan que Júpiter también es Júpiter.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La magnetohidrodinámica es una dinámica magnética.
- Física del espacio Física del espacio
Sus antecedentes:
- Júpiter posee una magnetosfera sustancial, significativamente más grande que el propio planeta.
- Estudios anteriores de la Voyager 1 indicaron una enorme cola magnética que se extiende desde Júpiter.
- Comprender la magnetosfera de Júpiter es crucial para la ciencia planetaria y la predicción del clima espacial.
Objetivo del estudio:
- Para analizar los datos de la trayectoria de entrada y salida de la Voyager 2.
- Para investigar la estructura y la dinámica de la magnetosfera y la cola magnética de Júpiter.
- Para explorar la interacción entre la magnetosfera de Júpiter y su luna Ganímedes.
Principales métodos:
- Utilizó datos del magnetómetro del Centro de Vuelos Espaciales Goddard en la Voyager 2.
- Cruces observados del arco de choque de Júpiter y la magnetosfera a distancias radiales específicas.
- Analizó la geometría del campo magnético y las interacciones del plasma.
Principales resultados:
- Se han confirmado múltiples cruces del arco de choque y la magnetosfera de Júpiter.
- Proporcionó evidencia de una enorme cola magnética, de 300-400 radios de Júpiter de diámetro.
- Fusión espacial observada de las corrientes del magnetodisco y la hoja de corriente de la cola magnética.
- Se detectaron fluctuaciones cerca de Ganímedes, posiblemente debido a la interacción entre la magnetosfera y la luna.
Conclusiones:
- La magnetosfera de Júpiter es vasta, con una prominente cola magnética.
- La magnetosfera interna está distorsionada por el plasma concentrado, que se fusiona con la hoja de corriente de la cola.
- Las interacciones entre la magnetosfera de Júpiter y Ganímedes causan perturbaciones detectables.
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