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.

Kredit:

ESO/SOAR

O snímku

Id:eso1203b
Typ:Pozorování
Datum zveřejnění:9. ledna 2012 12:12
Související články:eso1203
Velikost:1530 x 1182 px

O objektu

Jméno:ACT-CL J0102−4915
Typ:Early Universe : Galaxy : Grouping : Cluster
Vzdálenost:z=0.87 (rudý posuv)
Constellation:Phoenix
Kategorie:Cosmology

Image Formats

největší JPEG
889,5 KB

Zvětšovatelný


Pozadí

1024x768
337,2 KB
1280x1024
620,4 KB
1600x1200
782,2 KB
1920x1200
892,0 KB
2048x1536
1,2 MB

Souřadnice

Position (RA):1 2 57.12
Position (Dec):-49° 15' 20.11"
Field of view:6.46 x 4.99 arcminutes
Orientace:Sever je 0.0° levá od svislé osy

Barvy & filtry

PásmoVlnová délkaDalekohled
Optický
R
655 nmVery Large Telescope
FORS2
Infračervený
I
768 nmVery Large Telescope
FORS2
Infračervený
Z
910 nmVery Large Telescope
FORS2

 

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