Early star-forming galaxies and the reionization of the Universe.
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- Record sourced from PubMed, PMID 21048759.
- Also identified by DOI 10.1038/nature09527.
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Abstract
Star-forming galaxies trace cosmic history. Recent observational progress with the NASA Hubble Space Telescope has led to the discovery and study of the earliest known galaxies, which correspond to a period when the Universe was only ∼800 million years old. Intense ultraviolet radiation from these early galaxies probably induced a major event in cosmic history: the reionization of intergalactic hydrogen.