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.

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ESO/SOAR/NASA

Om bilden

ID:eso1203a
Typ:Observation
Publiceringsdatum:10 januari 2012 17:00
Relaterade pressmeddelanden:eso1203
Storlek:1530 x 1182 px

Om objektet

Namn:ACT-CL J0102-4915
Typ:Early Universe : Galaxy : Grouping : Cluster
Avstånd:z=0.87 (rödförskjutning)
Constellation:Phoenix
Kategori:Galaxy Clusters

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Koordinater

Position (RA):1 2 57.07
Position (Dec):-49° 15' 20.97"
Field of view:6.43 x 4.97 arcminutes
Orientering:Nord är 0.1° höger om lodrätt

Färger och filter

BandVåglängdTeleskop
Synligt ljus
R
655 nmVery Large Telescope
FORS2
Infrarött
I
768 nmVery Large Telescope
FORS2
Infrarött
Z
910 nmVery Large Telescope
FORS2

 

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