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Campos magnéticos dinámicamente importantes cerca de agujeros negros supermasivos en acrecentamiento
M Zamaninasab1, E Clausen-Brown1, T Savolainen1
1Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany.
Nature
|June 6, 2014
Resumen
Los agujeros negros supermasivos que lanzan chorros tienen campos magnéticos dinámicamente importantes. Estos campos se correlacionan con la luminosidad del disco de acreción, influyendo en la formación de chorros y en los procesos de acreción de agujeros negros.
Área de la Ciencia:
- La astrofísica es la astrofísica.
- Física del agujero negro Física del agujero negro
- Física del plasma es la física del plasma.
Sus antecedentes:
- Los agujeros negros supermasivos que se acumulan generan chorros relativistas.
- Se supone que los campos magnéticos son cruciales para la formación de chorros y la física del disco de acreción.
- Observaciones anteriores sugirieron campos magnéticos dinámicamente importantes cerca del agujero negro del Centro Galáctico.
Objetivo del estudio:
- Para investigar la relación entre los campos magnéticos en las regiones de lanzamiento de chorros y la luminosidad del disco de acreción.
- Para determinar si los campos magnéticos dinámicamente importantes son comunes en las galaxias activas de radio-alto.
- Para entender el impacto de estos campos magnéticos en las propiedades del disco de acreción y la dinámica de los chorros.
Principales métodos:
- Analizó una muestra de 76 galaxias activas de radio-alto.
- Medidas correlacionadas de la intensidad del campo magnético del chorro con la luminosidad del disco de acreción a través de siete órdenes de magnitud.
Principales resultados:
- Se encontró una estrecha correlación entre la intensidad del campo magnético del chorro y la luminosidad del disco de acreción.
- Esta correlación abarca siete órdenes de magnitud, lo que indica una relación universal.
- Los campos magnéticos dinámicamente importantes están presentes en las regiones de lanzamiento de chorros de estas galaxias.
Conclusiones:
- Las regiones de lanzamiento de chorros de las galaxias activas de radio son enhebradas por campos magnéticos dinámicamente importantes.
- Estos campos magnéticos afectan significativamente a las propiedades del disco de acreción, incluida la caída de gas y el transporte del momento angular.
- Los campos magnéticos juegan un papel crítico en la determinación de la direccionalidad y la formación de los chorros.
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