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Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
El soporte magnético de los filamentos de la línea de emisión óptica en NGC 1275
A C Fabian1, R M Johnstone, J S Sanders
1Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, UK. acf@ast.cam.ac.uk
Nature
|August 23, 2008
Resumen
Los campos magnéticos estabilizan los gigantescos filamentos de gas en el cúmulo de Perseo.
Área de la Ciencia:
- La astrofísica es la astrofísica.
- Evolución de la galaxia Evolución de la galaxia.
- Física del plasma es la física del plasma.
Sus antecedentes:
- NGC 1275, una galaxia elíptica gigante en el cúmulo de Perseo, alberga una nebulosa de antiguos filamentos de líneas de emisión.
- Estos filamentos tienen la forma de burbujas emisoras de radio del agujero negro central, que actúan como marcadores de la transferencia de energía.
- El mecanismo de estabilización de estos filamentos contra la disipación en el gas caliente del intracluster era previamente desconocido.
Objetivo del estudio:
- Para investigar la estructura y el mecanismo de estabilización de los filamentos de la línea de emisión que rodean a NGC 1275.
- Para entender cómo estos filamentos persisten e influyen en el entorno de la galaxia.
Principales métodos:
- Observaciones de alta resolución que resuelven estructuras finas dentro de los filamentos.
- Análisis de las dimensiones del filamento y comparación con las propiedades de los gases intracluster circundantes.
Principales resultados:
- Descubrimiento de estructuras en forma de hilo dentro de los filamentos, algunos de los cuales se extienden más de 6 kpc pero sólo 70 pc de ancho.
- La evidencia sugiere que estos hilos están en equilibrio de presión con el gas intracúmulo caliente circundante.
Conclusiones:
- Los campos magnéticos dentro de los hilos de filamento son cruciales para su estabilización.
- Esta estabilización magnética permite que el gas frío se acumule, lo que podría retrasar la formación de estrellas en la galaxia.
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