2001Symposium - International Astronomical UnionOpen access

Searching for the Reionization Epoch

P. A. Shaver

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Abstract

Recent advances have led to the discoveries of both galaxies and quasars out to z ~ 6. The reionization epoch itself, thought to lie somewhere in the range 6 < zi < 15, may be within reach over the next decade. Prospects for the detection of the first luminous objects in the Universe are reviewed - the objects that reionized the Universe and brought an end to the “Dark Ages”. Alternative possibilities for detecting the reionization epoch are also discussed, including direct detection of the intergalactic medium itself at that epoch.

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What this paper is about

Recent advances have led to the discoveries of both galaxies and quasars out to z ~ 6. The reionization epoch itself, thought to lie somewhere in the range 6 < zi < 15, may be within reach over the next decade. Prospects for the detection of the first luminous objects in the Universe are reviewed - the objects that reionized the Universe and brought an end to the “Dark Ages”. Alternative possibilities for detecting the reionization epoch are also discussed, including direct detection of the intergalactic medium itself at that epoch.

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Available abstract

Recent advances have led to the discoveries of both galaxies and quasars out to z ~ 6. The reionization epoch itself, thought to lie somewhere in the range 6 < zi < 15, may be within reach over the next decade. Prospects for the detection of the first luminous objects in the Universe are reviewed - the objects that reionized the Universe and brought an end to the “Dark Ages”. Alternative possibilities for detecting the reionization epoch are also discussed, including direct detection of the intergalactic medium itself at that epoch.

Key concepts: Reionization, Epoch (astronomy), Physics, Dark Ages, Intergalactic medium, Astrophysics, Astronomy, Galaxy

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