Home > Agencies & Organisations, Astronomy, Cosmology, ESO (European Southern Observatory), General Astronomy, Observatories & Facilities > VISTA Produces Spectacular Panoramic View of the Distant Universe

VISTA Produces Spectacular Panoramic View of the Distant Universe


The most detailed infrared image ever taken of a region of space large enough to be representative of the distant Universe has been released by a team led by the University of Edinburgh. The image from the European Southern Observatory’s (ESO) VISTA telescope reveals more than 200,000 galaxies, including the most distant seen to date in the early Universe. These objects formed less than one billion years after the Big Bang. The new image comes from the first year of data taken as part of the five-year UltraVISTA survey. It was made by combining more than six thousand separate images – equivalent to an exposure time of 55 hours.

The image forms part of a huge collection of fully processed images from all the VISTA surveys that is now being made available by ESO to astronomers worldwide. It comes as a result of the VISTA telescope being trained on the same patch of sky repeatedly to slowly accumulate the very dim light from the most distant galaxies. On this colour composite of the UltraVISTA image, the large white objects with haloes are foreground stars in our own Milky Way Galaxy. A host of other galaxies can be seen, from relatively nearby galaxies which appear large enough to discern their structures, to the most distant galaxies which appear as red dots in this image.
Professor Jim Emerson, of Queen Mary, University of London, Principal Investigator for the construction of VISTA, commented: “These superbly detailed images of such a large area of the distant Universe are an exciting first return for the ten years the team spent getting VISTA from an idea to a successful reality.”

Full Story: http://www.stfc.ac.uk/News+and+Events/38774.aspx

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