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La orientación del campo magnético interestelar local
M Opher1, E C Stone, T I Gombosi
1Department of Physics and Astronomy, George Mason University, 4400 University Drive, Fairfax, VA 22030, USA. mopher@physics.gmu.edu
Science (New York, N.Y.)
|May 15, 2007
Resumen
El campo magnético interestelar local.
Área de la Ciencia:
- Física del espacio Física del espacio
- Heliofísica es la heliofísica.
- La astrofísica es la astrofísica.
Sus antecedentes:
- La forma y el comportamiento de la heliosfera están influenciados por el campo magnético interestelar.
- Las asimetrías en la heliosfera afectan las emisiones de radio y el flujo de iones.
- Comprender la orientación del campo magnético interestelar local es crucial.
Objetivo del estudio:
- Para determinar la orientación del campo magnético interestelar local.
- Para investigar su influencia en los fenómenos heliosféricos.
- Para comparar la orientación del campo local con campos magnéticos interestelares a gran escala.
Principales métodos:
- Datos de observación combinados de emisiones de radio y flujo de partículas energéticas.
- Utilizó extensas simulaciones por computadora tridimensionales magnetohidrodinámicas (MHD).
- Modelado el campo magnético que se extiende sobre la heliopausa.
Principales resultados:
- El plano del campo magnético interestelar local está orientado de 60 a 90 grados desde el plano galáctico.
- Esta orientación crea asimetrías en la heliosfera.
- Efectos observados en localizaciones de emisión de radio y direcciones de flujo de iones.
Conclusiones:
- La orientación del campo magnético interestelar local se desvía significativamente del plano galáctico.
- El campo en la Nube Interestelar Local difiere de los campos interestelares a mayor escala.
- Este hallazgo tiene implicaciones para los modelos de la heliosfera y el medio interestelar.
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