Galaxy cluster CL2244-02 with gravitational arcs

The image is a colour composite image of the galaxy cluster CL2244-02 (redshift z = 0.3), combining a 20 min jittered ISAAC Ks (2.16µm) exposure with 15 min V (green-yellow) and R (red) exposures, obtained with the VLT Test Camera at the UT1 Nasmyth focus. In addition to the prominent blue arc, produced by gravitational lensing of a galaxy at redshift z = 2.24, there are also notable, very red arcs, both closer to the centre and further out. They were only detected in the infrared image and are probably due to lensing of a much more distant galaxy.

Credit:

ESO

Over de afbeelding

Id:eso9856d
Type:Observatie
Publicatiedatum:26 november 1998
Gerelateerde berichten:eso9856
Grootte:2872 x 2865 px

Over het object

Naam:CL2244-02
Type:Early Universe : Galaxy : Grouping : Cluster
Afstand:z=0.3 (roodverschuiving)
Constellation:Aquarius
Categorie:Galaxy Clusters

Image Formats

Grote JPEG
2,8 MB

Inzoomen


Wallpapers

1024x768
501,2 KB
1280x1024
774,7 KB
1600x1200
1,0 MB
1920x1200
1,1 MB
2048x1536
1,4 MB

Coordinates

Position (RA):22 47 12.10
Position (Dec):-2° 5' 44.96"
Field of view:1.37 x 1.37 arcminutes
Orientation:North is 37.4° left of vertical

Kleuren & filters

BandGolflengteTelescoop
Infrarood
Near-IR
2.16 μmVery Large Telescope
ISAAC
Optisch
V
Very Large Telescope
Optisch
R
Very Large Telescope