Distant star-forming galaxies in the early Universe

The LABOCA camera on the ESO-operated 12-metre Atacama Pathfinder Experiment (APEX) telescope reveals distant galaxies undergoing the most intense type of star formation activity known, called a starburst. This image shows these distant galaxies, found in a region of sky known as the Extended Chandra Deep Field South, in the constellation of Fornax (The Furnace). The galaxies seen by LABOCA are shown in red, overlaid on an infrared view of the region as seen by the IRAC camera on the Spitzer Space Telescope.

By studying how some of these distant starburst galaxies are clustered together, astronomers have found that they eventually become so-called giant elliptical galaxies — the most massive galaxies in today’s Universe.

The galaxies are so distant that their light has taken around ten billion years to reach us, so we see them as they were about ten billion years ago. Because of this extreme distance, the infrared light from dust grains heated by starlight is redshifted into longer wavelengths, and the dusty galaxies are therefore best observed in submillimetre wavelengths of light. The galaxies are thus known as submillimetre galaxies.

Crédito:

ESO, APEX (MPIfR/ESO/OSO), A. Weiss et al., NASA Spitzer Science Center

Sobre a imagem

Id:eso1206a
Tipo:Observação
Data de divulgação:25 de Janeiro de 2012 às 12:00
Notícias relacionadas:eso1206
Tamanho:3003 x 2520 px

Sobre o objeto

Tipo:Unspecified : Galaxy : Activity : Starburst
Constellation:Fornax
Categoria:Galaxies

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Coordenadas

Position (RA):3 32 30.50
Position (Dec):-27° 48' 40.28"
Field of view:30.01 x 25.19 arcminutes
Orientação:O norte está a 90.0° à direita da vertical

Cores e filtros

BandaComprimento de ondaTelescópio
Infravermelho Spitzer Space Telescope
IRAC (Spitzer)
Infravermelho Spitzer Space Telescope
IRAC (Spitzer)
Infravermelho
Z
870 nmAtacama Pathfinder Experiment
LABOCA
Infravermelho Spitzer Space Telescope
IRAC (Spitzer)

 

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