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. This newly discovered object 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. The merging cluster appear as a cloud of huge numbers of faint galaxies stretching from the lower left to the upper right of the picture. Close to the centre a pale blue line caused by gravitational lensing of a more distant galaxy can be seen.

Källa:

ESO/SOAR

Om bilden

ID:eso1203b
Typ:Observation
Publiceringsdatum:9 januari 2012 12:12
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:Cosmology

Bildformat

Stor jpeg
889,5 kB
Skärmstor jpeg
270,5 kB

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Koordinater

Position (RA):1 2 57.12
Position (Dec):-49° 15' 20.11"
Field of view:6.46 x 4.99 arcminutes
Orientering:Nord är 0.0° vänster 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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