@inproceedings{3867d2e5776f4812816818e853757724,
title = "Lyα emitters at z = 6.5 in the SSA22 field: A large-scale fluctuation of the neutral hydrogen fraction at the end of the reionizaion epoch?",
abstract = "In a deep image of the SSA22 field taken through a narrowband filter NB912 installed in the Subaru/Suprime-Cam, we have found the number density of the photometric Lyα emitter (LAE) candidates with LLyα > 3 × 1042 erg s-1 at z = 6.5 is a factor of 3-7 smaller than that found at the same redshift in the Subaru Deep field (SDF). There is a trend that more luminous LAE candidates are fewer. If we consider a scenario that a larger neutral fraction of intergalactic hydrogen, x HI, in the SSA22 field obscures a part of Lya emission, x HI in the SSA22 field should be about 2 times larger than that in the SDF, which is translated into xHI < 0.9 in the SSA22 at z = 6.5.",
keywords = "Cosmology: Observations - Galaxies: High-redshift, Intergalactic mediu",
author = "Inoue, {A. K.} and E. Nakamura and T. Hayashino and M. Horie and K. Kousai and T. Fujii and Y. Matsuda",
year = "2010",
doi = "10.1063/1.3509304",
language = "English",
isbn = "9780735408296",
series = "AIP Conference Proceedings",
pages = "340--342",
booktitle = "Deciphering the Ancient Universe with Gamma-Ray Bursts",
note = "International Symposium {"}Deciphering the Ancient Universe with Gamma-Ray Bursts{"} ; Conference date: 19-04-2010 Through 23-04-2010",
}