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. 

Telif:

ESO/M. Hayes 

Görüntü Hakkında

Kimlik:eso1130a
Tür:Gözlem
Yayın tarihi:17 Ağustos 2011 19:00
Bağlantılı bültenler:eso1632, eso1130
Boyut:2042 x 2042 px

Nesne Hakkında

Adı:LAB-1
Tür:Early Universe : Cosmology : Morphology : Large-Scale Structure
Uzaklık:z=3.1 (kırmızıya kayma)
Constellation:Aquarius
Kategori:Cosmology

Görüntü Türleri

Büyük JPEG
597,4 KB

Yaklaştırma


Duvarkağıtları

1024x768
170,5 KB
1280x1024
251,1 KB
1600x1200
324,8 KB
1920x1200
347,4 KB
2048x1536
450,1 KB

Koordinatlar

Position (RA):22 17 25.78
Position (Dec):0° 12' 39.20"
Field of view:1.60 x 1.60 arcminutes
Yönelim:Kuzey yönü 9.9° sağ derece kadar dik konumdan sapma göstermektedir

Renkler & Filtreler

BantDalgaboyuTeleskop
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