The GOODS-South field

This composite image of the GOODS-South field — the result of an extremely deep survey using two of the four giant 8.2-metre telescopes composing ESO’s Very Large Telescope (VLT) and a unique custom-built filter — shows some of the faintest galaxies ever seen. It also allows astronomers to determine that 90% of galaxies whose light took 10 billion years to reach us have gone undiscovered.

The image is based on data acquired with the FORS and HAWK-I instruments on the VLT. It shows in particular two varieties of light emitted by excited hydrogen atoms, known as Lyman-alpha and H-alpha.

Crédito:

ESO/M. Hayes

Sobre a imagem

Id:eso1013a
Tipo:Observação
Data de divulgação:24 de Março de 2010 às 19:00
Notícias relacionadas:eso1013
Tamanho:1787 x 1787 px

Sobre o objeto

Nome:GOODS South field
Tipo:Early Universe : Galaxy : Grouping : Cluster
Distância:z=2.2 (desvio para o vermelho)
Constellation:Fornax
Categoria:Galaxy Clusters

Formatos de imagens

JPEG grande
802,5 KB

Papéis de parede

1024x768
233,2 KB
1280x1024
359,8 KB
1600x1200
506,0 KB
1920x1200
539,3 KB
2048x1536
724,0 KB

Coordenadas

Position (RA):3 32 32.74
Position (Dec):-27° 47' 20.40"
Field of view:7.47 x 7.47 arcminutes
Orientação:O norte está a 44.4° à esquerda da vertical

Cores e filtros

BandaComprimento de ondaTelescópio
Óptico
Ly-alpha
390 nmVery Large Telescope
FORS1
Óptico
H-alpha
2.1 μmVery Large Telescope
HAWK-I