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.

Kredit:

ESO/M. Hayes

O snímku

Id:eso1013a
Typ:Pozorování
Datum zveřejnění:24. března 2010 19:00
Související články:eso1013
Velikost:1787 x 1787 px

O objektu

Jméno:GOODS South field
Typ:Early Universe : Galaxy : Grouping : Cluster
Vzdálenost:z=2.2 (rudý posuv)
Constellation:Fornax
Kategorie:Galaxy Clusters

Image Formats

největší JPEG
802,5 KB

Pozadí

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

Souřadnice

Position (RA):3 32 32.74
Position (Dec):-27° 47' 20.40"
Field of view:7.47 x 7.47 arcminutes
Orientace:Sever je 44.4° levá od svislé osy

Barvy & filtry

PásmoVlnová délkaDalekohled
Optický
Ly-alpha
390 nmVery Large Telescope
FORS1
Optický
H-alpha
2.1 μmVery Large Telescope
HAWK-I