Gravitational lens in galaxy cluster 1ES 0657-55

by: ESO/Novapix
Reference: a-amg90-00080
Date: 2006-05-08

An Arc at z = 3.23 in galaxy cluster 1ES 0657-55. The galaxy cluster 1ES 0657-55 is located in the southern constellation Carina (The Keel), south of the Milky Way band. Its redshift has been measured as z = 0.29. It is a source of strong and very hot X-ray emission and has an asymmetric galaxy distribution, indicating a large mass and recent formation.

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