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.

Crediti:

ESO/M. Hayes

Riguardo l'immagine

Identificazione:eso1013a
Tipo:Osservazione
Data di rilascio:Mercoledì 24 Marzo 2010 19:00
Notizie relative:eso1013
Grandezza:1787 x 1787 px

Riguardo all'oggetto

Nome:GOODS South field
Tipo:Early Universe : Galaxy : Grouping : Cluster
Distanza:z=2.2 (spostamento del rosso)
Constellation:Fornax
Categoria:Galaxy Clusters

Formati delle immagini

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Coordinate

Position (RA):3 32 32.74
Position (Dec):-27° 47' 20.40"
Field of view:7.47 x 7.47 arcminutes
Orientazione:Il Nord è a 44.4° a sinistra della verticale

Colori e filtri

BandaLunghezza d'ondaTelescopio
Ottico
Ly-alpha
390 nmVery Large Telescope
FORS1
Ottico
H-alpha
2.1 μmVery Large Telescope
HAWK-I