Giant space blob glows from within

This image shows one of the largest known single objects in the Universe, the Lyman-alpha blob LAB-1. This picture is a composite of two different images taken with the FORS instrument on the Very Large Telescope (VLT)  — a wider image showing the surrounding galaxies and a much deeper observation of the blob itself at the centre made to detect its polarisation. The intense Lyman-alpha ultraviolet radiation from the blob appears green after it has been stretched by the expansion of the Universe during its long journey to Earth. These new observations show for the first time that the light from this object is polarised. This means that the giant "blob" must be powered by galaxies embedded within the cloud. 

Mynd/Myndskeið:

ESO/M. Hayes 

Um myndina

Auðkenni:eso1130a
Tegund:Athuganir
Útgáfudagur:Ágú 17, 2011, 19:00 CEST
Tengdar fréttatilkynningar:eso1632, eso1130
Stærð:2042 x 2042 px

Um fyrirbærið

Nafn:LAB-1
Tegund:Early Universe : Cosmology : Morphology : Large-Scale Structure
Fjarlægð:z=3.1 (rauðvik)
Constellation:Aquarius
Flokkur:Cosmology

Myndasnið

Stór JPEG
597,4 KB

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Hnit

Position (RA):22 17 25.78
Position (Dec):0° 12' 39.20"
Field of view:1.60 x 1.60 arcminutes
Stefna:Norður er 9.9° højre frá lóðréttu

Litir og síur

TíðnisviðBylgjulengdSjónauki
Sýnilegt
B
Very Large Telescope
FORS2
Sýnilegt
Pseudogreen (B+R)
Very Large Telescope
FORS2
Sýnilegt
OIII
500 nmVery Large Telescope
FORS2
Sýnilegt
V
Very Large Telescope
FORS2