Galaxy Cluster CL2244-02 with gravitational arcs

by: ESO/Novapix
Reference: a-amg90-00070
Date: 2006-05-08

Colour composite image of the galaxy cluster CL2244-02 (redshift z = 0.3), 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.

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