The Damping Wing of the Gunn-Peterson Absorption and Lyα Emitters in the Pre-Reionization Era | Zendy

Nickolay Y. Gnedin | Zendy; F. Prada | Zendy

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The Damping Wing of the Gunn-Peterson Absorption and Lyα Emitters in the Pre-Reionization Era

Author(s) -

Nickolay Y. Gnedin,

F. Prada

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/422390

Subject(s) - reionization , galaxy , astrophysics , intergalactic medium , wing , physics , absorption (acoustics) , astronomy , redshift , optics , thermodynamics

We use a numerical simulation of cosmological reionization to estimate thelikelihood of detecting Lyman-alpha emitting galaxies during thepre-reionization era. We show that it is possible to find galaxies even at z~9that are barely affected by the dumping wing of the Gunn-Peterson absorptionfrom the neutral IGM outside of their HII regions. The damping wing becomesrapidly more significant at z>9, but even at z>10 is it not inconceivable(although quite hard) to see a Lyman-alpha emission line from a star-forminggalaxy.Comment: submitted to Ap

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