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.

Crédit:

ESO/SOAR/NASA

À propos de l'image

Identification:eso1203a
Type:Observation
Date de publication:10 janvier 2012 17:00
Communiqués de presse en rapport:eso1203
Taille:1530 x 1182 px

À propos de l'objet

Nom:ACT-CL J0102-4915
Type:Early Universe : Galaxy : Grouping : Cluster
Distance:z=0.87 (redshift)
Constellation:Phoenix
Catégorie:Galaxy Clusters

Image Formats

Grand JPEG
783,5 Kio
JPEG taille écran
245,1 Kio

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303,5 Kio
1280x1024
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1600x1200
695,3 Kio
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792,3 Kio
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Coordinates

Position (RA):1 2 57.07
Position (Dec):-49° 15' 20.97"
Field of view:6.43 x 4.97 arcminutes
Orientation:North is 0.1° right of vertical

Couleurs & filtres

DomaineLongueur d'ondeTélescope
Visible
R
655 nmVery Large Telescope
FORS2
Infrarouge
I
768 nmVery Large Telescope
FORS2
Infrarouge
Z
910 nmVery Large Telescope
FORS2

 

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