# SEARCHING FOR NEUTRAL HYDROGEN HALOS AROUND z ∼ 2.1 AND z ∼ 3.1 Lyα EMITTING GALAXIES

@article{Feldmeier2013SEARCHINGFN,
title={SEARCHING FOR NEUTRAL HYDROGEN HALOS AROUND z ∼ 2.1 AND z ∼ 3.1 Ly$\alpha$ EMITTING GALAXIES},
author={John Feldmeier and Alex Hagen and Robin Ciardullo and Caryl Gronwall and Eric Gawiser and L Guaita and Lea Hagen and Nicholas A. Bond and Viviana Acquaviva and Guillermo A. Blanc and {\'A}lvaro A Orsi and Peter Kurczynski},
journal={The Astrophysical Journal},
year={2013},
volume={776},
pages={75}
}
• Published 3 January 2013
• Physics
• The Astrophysical Journal
We search for evidence of diffuse Lyα emission from extended neutral hydrogen surrounding Lyα emitting galaxies (LAEs) using deep narrow-band images of the Extended Chandra Deep Field South. By stacking the profiles of 187 LAEs at z = 2.06, 241 LAEs at z = 3.10, and 179 LAEs at z = 3.12, and carefully performing low-surface brightness photometry, we obtain mean surface brightness maps that reach 9.9, 8.7, and 6.2 × 10{sup –19} erg cm{sup –2} s{sup –1} arcsec{sup –2} in the emission line. We…

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