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. 

Të drejtat:

ESO/M. Hayes 

Rreth fotografisë

Id:eso1130a
Tipi:Vëzhgim
Data e Publikimit:Gus 17, 2011, 19:00 CEST
Publikime të ngjashme:eso1632, eso1130
Përmasat:2042 x 2042 px

Rreth objektit

Emri:LAB-1
Tipi:Early Universe : Cosmology : Morphology : Large-Scale Structure
Distanca:z=3.1 (zhvendosja e kuqe)
Constellation:Aquarius
Kategori:Cosmology

Formate Fotografish

JPEG i madh
597,4 KB

E zmadhueshme


Wallpaper

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170,5 KB
1280x1024
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1920x1200
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Koordinatat

Position (RA):22 17 25.78
Position (Dec):0° 12' 39.20"
Field of view:1.60 x 1.60 arcminutes
Orientimi:Veriu është 9.9° djathtas vertikales

Ngjyra & filtera

BandaGjatësi valeTeleskopi
Optik
B
Very Large Telescope
FORS2
Optik
Pseudogreen (B+R)
Very Large Telescope
FORS2
Optik
OIII
500 nmVery Large Telescope
FORS2
Optik
V
Very Large Telescope
FORS2