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

Preprint

15 March 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0403345

Abstract

We use a numerical simulation of cosmological reionization to estimate the likelihood of detecting Lyman-alpha emitting galaxies during the pre-reionization era. We show that it is possible to find galaxies even at z~9 that are barely affected by the dumping wing of the Gunn-Peterson absorption from the neutral IGM outside of their HII regions. The damping wing becomes rapidly 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-forming galaxy.

Keywords

NUMERICAL SIMULATION
PETERSON ABSORPTION
GUNN PETERSON
DAMPING WING
REIONIZATION
LYMAN ALPHA
GALAXIES

All Related Versions

Version 1, 2004-03-15, ArXiv
Published version: The Astrophysical Journal, 608 (2), L77.

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