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Updated: Jul 14, 2026

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Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
El descubrimiento de un nuevo sistema de lentes gravitacionales
Resumen
Los astrónomos descubrieron un nuevo sistema de lentes gravitacionales, MG2016 + 112, que revela líneas de emisión estrechas en un alto corrimiento al rojo. Este descubrimiento ofrece información sobre galaxias distantes y la estructura del universo.
Área de la Ciencia:
- La astronomía y la astrofísica.
- Cosmología Cosmología.
- Lente gravitacional es el fenómeno de las lentes gravitacionales.
Sus antecedentes:
- Los sistemas de lentes gravitacionales son cruciales para el estudio de objetos celestes distantes.
- La observación de fenómenos de alto desplazamiento al rojo proporciona información sobre el universo temprano.
- La fuente de radio MG2016+112 presenta una oportunidad única para la investigación astrofísica.
Objetivo del estudio:
- Informar sobre el descubrimiento y la caracterización inicial de la triple fuente de radio MG2016+112.
- Para analizar las propiedades espectrales de las líneas de emisión en el sistema.
- Para investigar la naturaleza de la galaxia lente y objetos lentes.
Principales métodos:
- Análisis espectroscópico de objetos estelares coincidiendo con componentes de radio.
- Medidas fotométricas de objetos ópticos.
- Determinación del corrimiento al rojo utilizando líneas de emisión identificadas.
Principales resultados:
- Descubrimiento de un nuevo sistema de lentes gravitacionales, MG2016+112.
- Identificación de cinco líneas de emisión con un desplazamiento al rojo de 3.2733+/-0.0014 en dos objetos estelares de magnitud 22.5.
- Observación de las líneas de emisión más estrechas jamás registradas en objetos con un desplazamiento al rojo tan alto.
- Las propiedades ópticas de un tercer objeto son consistentes con una galaxia elíptica gigante con desplazamiento al rojo de ~0.8.
Conclusiones:
- Las estrechas líneas de emisión sugieren condiciones físicas específicas dentro de los objetos con lentes.
- MG2016+112 sirve como un valioso laboratorio para estudiar los fenómenos de alto desplazamiento al rojo.
- Se justifica una investigación adicional para comprender completamente las propiedades del sistema de lentes.
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