Emission of the galaxy BzK-15504

H-alpha line emission of the galaxy BzK-15504, at cosmological redshift of 2.38, corresponding to a time of 3 billion years after the Big Bang. The colours show whether the ionised gas is moving away from us (red), toward us (blue) or is stationary (green), relative to the overall rest frame of the galaxy. These data, obtained with SINFONI and adaptive optics (resulting in a resolution of 0.15", or 4,000 light years at the distance of the galaxy), show for the first time very clearly the gas motions in such a distant galaxy in the Early Universe. The galaxy appears to be a disc, like our Milky Way, and rotates at 230 km/s about the yellow axis, which is centred on the nucleus of the galaxy (white cross).

Crédito:

ESO

Sobre a imagem

Id:eso0631a
Tipo:Observação
Data de divulgação:17 de Agosto de 2006
Notícias relacionadas:eso0631
Tamanho:2358 x 2598 px

Sobre o objeto

Nome:BzK 15504
Tipo:Early Universe : Galaxy : Activity : AGN
Distância:z=2.38 (desvio para o vermelho)
Categoria:Galaxies

Formatos de imagens

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Cores e filtros

BandaTelescópio
Infravermelho
H-alpha
Very Large Telescope
SINFONI

 

Veja também