The First Light seen in the redshifted 21-cm radiation

1999/05/17 by P. Tozzi, Paolo Tozzi, Piero Madau +7
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Galaxies: Formation, Evolution, Phenomena #Radio Astronomy Observations and Technology #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9905199

8 pages, including 7 figures, to appear in: Proc. 19th Texas Symposium on Relativistic Astrophysics and Cosmology, Paris, France, Dec. 1998

arxiv created 1999/05/17 · arxiv updated 2009/12/01

Abstract

We show how the investigation of the redshifted 21-cm radiation can give insight into the development of structures in the early universe (at redshifts z>5). In particular we investigate: the epoch of the first light; the fluctuations in the redshifted 21-cm emission induced by the density inhomogeneities in CDM dominated universes; the emission and absorption shells that are generated around the first bright quasars. Such features can be observed with the next generation radio facilities.

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