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.

Kilde:

ESO/SOAR

Om bildet

ID:eso1203b
Type:Observasjon
Publiseringsdato:9. januar 2012 12:12
Relaterte pressemeldinger:eso1203
Størrelse:1530 x 1182 px

Om objektet

Navn:ACT-CL J0102−4915
Type:Early Universe : Galaxy : Grouping : Cluster
Avstand:z=0.87 (rødforskyvning)
Constellation:Phoenix
Kategori:Cosmology

Bildeformater

Stor JPEG
889,5 KB
Medium JPEG
270,5 KB

Zoombart


Skrivebordsbakgrunner

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

Koordinater

Position (RA):1 2 57.12
Position (Dec):-49° 15' 20.11"
Field of view:6.46 x 4.99 arcminutes
Orientering:Nord er 0.0° til venstre for vertikalen

Farger og filtre

BåndBølgelengdeTeleskop
Optisk
R
655 nmVery Large Telescope
FORS2
Infrarødt
I
768 nmVery Large Telescope
FORS2
Infrarødt
Z
910 nmVery Large Telescope
FORS2

 

Se også