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. 

Autorska prava:

ESO/M. Hayes 

O slici

Id:eso1130a
Tip:Opservacija
Datum objavljivanja:17. avgust 2011. 19:00
Povezana saopštenja:eso1632, eso1130
Veličina:2042 x 2042 px

O objektu

Naziv:LAB-1
Tip:Early Universe : Cosmology : Morphology : Large-Scale Structure
Udaljenost:z=3.1 (crveni pomak)
Constellation:Aquarius
Kategorija:Cosmology

Formati slika

Veliki JPEG
597,4 KB

Zumiranje


Wallpapers

1024x768
170,5 KB
1280x1024
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1600x1200
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1920x1200
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2048x1536
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Koordinate

Position (RA):22 17 25.78
Position (Dec):0° 12' 39.20"
Field of view:1.60 x 1.60 arcminutes
Orijentacija:Sever je 9.9°desno od vertikale

Boje i flteri

OpsegTalasna dužinaTeleskop
Optički
B
Very Large Telescope
FORS2
Optički
Pseudogreen (B+R)
Very Large Telescope
FORS2
Optički
OIII
500 nmVery Large Telescope
FORS2
Optički
V
Very Large Telescope
FORS2