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Una chimenea de rayos X que se extiende cientos de parsecs por encima y por debajo del Centro Galáctico
G Ponti1,2, F Hofmann3, E Churazov4,5
1Max-Planck-Institut für Extraterrestrische Physik, Garching, Germany. gabriele.ponti@inaf.it.
Nature
|March 22, 2019
Resumen
Las salidas del Centro Galáctico crean estructuras de rayos X, llamadas
Área de la Ciencia:
- Astronomía y astrofísica
- Dinámica Galáctica
Sus antecedentes:
- Las salidas del Centro Galáctico influyen significativamente en la estructura de la Vía Láctea.
- Las observaciones anteriores revelaron lóbulos bipolares, burbujas de Fermi y el lóbulo del centro galáctico, indicando eventos energéticos pasados.
Objetivo del estudio:
- Informar y caracterizar las prominentes estructuras de rayos X que conectan el Centro Galáctico con las burbujas de Fermi.
- Proponer estas estructuras como "chimeneas" para la energía y el transporte masivo.
Principales métodos:
- Análisis de los datos de rayos X del estudio de todo el cielo de ROSAT.
- Observación de estructuras de rayos X en escalas intermedias (cientos de parsecs) por encima y por debajo del plano galáctico.
Principales resultados:
- Descubrimiento de prominentes estructuras de rayos X en escalas intermedias (cientos de parsecs).
- Estas estructuras parecen conectar la región del Centro Galáctico con las burbujas de Fermi más grandes.
- La evidencia sugiere que estas estructuras actúan como canales de transporte de energía y masa.
Conclusiones:
- Las estructuras de rayos X identificadas, llamadas "chimeneas" del Centro Galáctico, son cruciales para el transporte de energía y masa.
- Estas "chimeneas" enlazan eventos energéticos episódicos en el Centro Galáctico con la base de las burbujas de Fermi.
- Las salidas del Centro Galáctico juegan un papel vital en la formación de estructuras galácticas a gran escala.
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