ESO imaging survey provides targets for the VLT

This photo shows three views of a small field in the so-called EIS Patch-B. They were obtained during this survey in different colours: B - blue; V - green-yellow; I - near-infrared. At the centre is located a (candidate) cluster of galaxies at very large distance. This conclusion is based upon the different appearance of this cluster in the three frames: it is not seen in B; it is hardly visible in V and it is most obvious in I. This indicates that the galaxies in the cluster have very red colours. The effect is most likely due to high redshift (and therefore large distance) that has shifted the bulk of their emission from the visual to the near-infrared region of the spectrum. The other objects in the field — which are nearer — can be seen in all three frames.

Crédit:

ESO

À propos de l'image

Identification:eso9836a
Type:Observation
Date de publication:4 août 1998
Communiqués de presse en rapport:eso9836
Taille:3000 x 1188 px

À propos de l'objet

Nom:EIS Patch-B
Type:Early Universe : Galaxy : Grouping : Cluster
Distance:z=0.75 (redshift)
Catégorie:Galaxy Clusters

Formats des images

Grand JPEG
651,7 Kio
JPEG taille écran
101,8 Kio

Couleurs & filtres

DomaineTélescope
Infrarouge
I
New Technology Telescope
Visible
V
New Technology Telescope
Visible
B
New Technology Telescope