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.

Crédito:

ESO

Sobre la imagen

Identificador:eso9836a
Tipo:Observación
Fecha de publicación:4 de Agosto de 1998
Noticias relacionadas:eso9836
Tamaño:3000 x 1188 px

Sobre el objeto

Nombre:EIS Patch-B
Tipo:Early Universe : Galaxy : Grouping : Cluster
Distancia:z=0.75 (desplazamiento al rojo)
Categoría:Galaxy Clusters

Formatos de imagen

JPEG grande
651,7 KB

Colores y filtros

BandaTelescopio
Infrarrojo
I
New Technology Telescope
Óptico
V
New Technology Telescope
Óptico
B
New Technology Telescope