False colour image of XMMU J2235.3-2557

False colour image of the XMMU J2235.3-2557 cluster of galaxies, overlaid with the X-ray intensity contours derived from the ESA XMM-Newton data. The red channel is a VLT-ISAAC image (exposure time: 1 hour) obtained in the near-infrared Ks-band (at wavelength 2.2 microns); the green channel is a VLT-FORS2 z-band image (910 nm; 480 sec); the blue channel is a VLT-FORS2 R-band image (; 657 nm; 1140 sec). The VLT reveals 12 reddish galaxies, of elliptical types, as members of the cluster.

Crédit:

ESO

À propos de l'image

Identification:eso0506b
Type:Observation
Date de publication:2 mars 2005
Communiqués de presse en rapport:eso0506
Taille:1816 x 1338 px

À propos de l'objet

Nom:XMMU J2235.3-2557
Type:Early Universe : Galaxy : Grouping : Cluster
Distance:z=1.39 (redshift)
Catégorie:Galaxy Clusters

Image Formats

Grand JPEG
635,9 Kio
JPEG taille écran
241,9 Kio

Couleurs & filtres

DomaineLongueur d'ondeTélescope
Visible
R
657 nmVery Large Telescope
FORS2
Infrarouge
Z
910 nmVery Large Telescope
FORS2
Infrarouge
K
2.2 μmVery Large Telescope
ISAAC