eso_eso1013a March 24th, 2010
Credit: ESO/M. Hayes
This composite image of the GOODS-South field — the result of an extremely deep survey using two of the four giant 8.2-metre telescopes composing ESO’s Very Large Telescope (VLT) and a unique custom-built filter — shows some of the faintest galaxies ever seen. It also allows astronomers to determine that 90% of galaxies whose light took 10 billion years to reach us have gone undiscovered. The image is based on data acquired with the FORS and HAWK-I instruments on the VLT. It shows in particular two varieties of light emitted by excited hydrogen atoms, known as Lyman-alpha and H-alpha.
Provider: European Southern Observatory
Image Source: https://www.eso.org/public/images/eso1013a/
Curator: European Southern Observatory, Garching bei München, Germany
Image Use Policy: Creative Commons Attribution 4.0 International License
Detailed color mapping information coming soon...
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