Video de la NASA muestra impresionante colisión de dos galaxias

16 Marcha, 2018, 05:07 | Author: Enrique Watson
  • Vídeo Imágenes de la fusión de dos galaxias captadas por Hubble

Los astrónomos especulan que esta fusión puede eventualmente formar el núcleo de un cúmulo de galaxias completo, los cuales se encuentran entre las estructuras más masivas del universo. Los resultados de esta investigación se publican en la revista Nature.

Un equipo internacional de astrónomos liderados por la NASA anunció haber encontrado una galaxia distante en nuestro vecindario cósmico que se ha mantenido con las propiedades características del inicio del universo.

Analizar esos cúmulos facilita información sobre la historia de las galaxias.

De acuerdo con la ESA, las galaxias se encuentran a 350 millones de años luz de la Tierra, y muestran "guarderías estelares", las regiones en las que nacen nuevas estrellas.

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La ESA está particularmente interesada en investigar los choques de galaxia por ser un fenómeno frecuente, incluso nuestra galaxia se dirige a una inminente colisión con la galaxia de Andrómeda, un evento que tendrá lugar dentro de 5,000 millones de años.

Es común que las galaxias tengan estrellas viejas, pero la mayoría también ha continuado formando estrellas y algunas, como la Vía Lactea, ha ido agregando algunas otras estrellas al absorber otras galaxias a su paso. El motivo por el que los investigadores piensan que esta galaxia masiva ha mantenido su forma original y su composición intacta durante todo este tiempo es porque se formó como satélite de la galaxia central del cúmulo de Perseo, la cual absorbió cualquier material que podría haber caído sobre NGC 1277 y provocado que hubiese evolucionado de otra manera.

ÇLos autores plantean pedir más tiempo del Telescopio Espacial Hubble, y en su sucesor, el Telescopio Espacial James Webb, para observar los sistemas de cúmulos globulares de más galaxias reliquias.

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