El Gordo: a massive distant merging galaxy cluster

This picture of the galaxy cluster ACT-CL J0102−4915 combines images taken with ESO’s Very Large Telescope with images from the SOAR Telescope and X-ray observations from NASA’s Chandra X-ray Observatory. The X-ray image shows the hot gas in the cluster and is shown in blue. This newly discovered galaxy cluster has been nicknamed El Gordo — the "big" or "fat one" in Spanish. It consists of two separate galaxy subclusters colliding at several million kilometres per hour, and is so far away that its light has travelled for seven billion years to reach the Earth.

Crédito:

ESO/SOAR/NASA

Sobre a imagem

Id:eso1203a
Tipo:Observação
Data de divulgação:10 de Janeiro de 2012 às 17:00
Notícias relacionadas:eso1203
Tamanho:1530 x 1182 px

Sobre o objeto

Nome:ACT-CL J0102-4915
Tipo:Early Universe : Galaxy : Grouping : Cluster
Distância:z=0.87 (desvio para o vermelho)
Constellation:Phoenix
Categoria:Galaxy Clusters

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Coordenadas

Position (RA):1 2 57.07
Position (Dec):-49° 15' 20.97"
Field of view:6.43 x 4.97 arcminutes
Orientação:O norte está a 0.1° à direita da vertical

Cores e filtros

BandaComprimento de ondaTelescópio
Óptico
R
655 nmVery Large Telescope
FORS2
Infravermelho
I
768 nmVery Large Telescope
FORS2
Infravermelho
Z
910 nmVery Large Telescope
FORS2

 

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