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Markarian 348: una galaxia seyfert perturbada por las mareas
Resumen
Markarian 348, una galaxia espiral gigante, muestra evidencia de interrupción de las mareas por imágenes ópticas y de radio combinadas. Este estudio demuestra una extensa perturbación de las mareas en un núcleo galáctico activo.
Área de la Ciencia:
- La astronomía y la astrofísica.
- Dinámica Galáctica es la dinámica galáctica.
- Evolución de la galaxia Evolución de la galaxia.
Sus antecedentes:
- La combinación de imágenes ópticas y de radio ofrece información sobre las propiedades de las galaxias.
- Markarian 348 está clasificado como una galaxia tipo 2 Seyfert.
Objetivo del estudio:
- Para investigar el tamaño, la masa y el estado evolutivo de Markarian 348.
- Para determinar si Markarian 348 ha sufrido una interrupción de las mareas.
Principales métodos:
- Adquisición y análisis de imágenes ópticas profundas y de hidrógeno neutro.
- Medición del campo de velocidad del hidrógeno neutro y de la estructura espiral.
- Detección de rasgos ópticos indicativos de alteración de las mareas.
Principales resultados:
- Markarian 348 fue identificada como una galaxia espiral gigantesca, potencialmente la galaxia no cúmulo más grande conocida.
- La evidencia de la interrupción de las mareas se confirmó a través del campo de velocidad, la estructura en espiral y el penacho de marea.
- La relación masa-luz dentro de 130 kiloparsecs es comparable a las de galaxias activas similares.
Conclusiones:
- Las mediciones detalladas de la velocidad confirman una extensa perturbación de las mareas en Markarian 348.
- El estudio proporciona un raro caso de interrupción de marea demostrada en un núcleo galáctico activo.
- Los hallazgos contribuyen a comprender las interacciones y la evolución de las galaxias.
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