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Title: EFFECT OF HALO BIAS AND LYMAN LIMIT SYSTEMS ON THE HISTORY OF COSMIC REIONIZATION

Abstract

We extend the existing analytical model of reionization by Furlanetto et al. (2004) to include the biasing of reionization sources and additional absorption by Lyman Limit systems. Our model is, by construction, consistent with the observed evolution of the galaxy luminosity function at z<8 and with the observed evolution of Ly-{\alpha} forest at z<6. We also find that, for a wide range of values for the relative escape fraction that we consider reasonable, and which are consistent with the observational constraints on the relative escape fraction from lower redshifts, our reionization model is consistent with the WMAP constraint on the Thompson optical depth and with the SPT and EDGES constraints on the duration of reionization. We, therefore, conclude that it is possible to develop physically realistic models of reionization that are consistent with all existing observational constraints.

Authors:
;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1406335
Report Number(s):
arXiv:1212.1458; FERMILAB-PUB-13-116-A
Journal ID: ISSN 0004-637X; 1206265
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 771; Journal Issue: 1; Journal ID: ISSN 0004-637X
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Kaurov, Alexander A., and Gnedin, Nickolay Y.. EFFECT OF HALO BIAS AND LYMAN LIMIT SYSTEMS ON THE HISTORY OF COSMIC REIONIZATION. United States: N. p., 2013. Web. doi:10.1088/0004-637X/771/1/35.
Kaurov, Alexander A., & Gnedin, Nickolay Y.. EFFECT OF HALO BIAS AND LYMAN LIMIT SYSTEMS ON THE HISTORY OF COSMIC REIONIZATION. United States. https://doi.org/10.1088/0004-637X/771/1/35
Kaurov, Alexander A., and Gnedin, Nickolay Y.. Wed . "EFFECT OF HALO BIAS AND LYMAN LIMIT SYSTEMS ON THE HISTORY OF COSMIC REIONIZATION". United States. https://doi.org/10.1088/0004-637X/771/1/35. https://www.osti.gov/servlets/purl/1406335.
@article{osti_1406335,
title = {EFFECT OF HALO BIAS AND LYMAN LIMIT SYSTEMS ON THE HISTORY OF COSMIC REIONIZATION},
author = {Kaurov, Alexander A. and Gnedin, Nickolay Y.},
abstractNote = {We extend the existing analytical model of reionization by Furlanetto et al. (2004) to include the biasing of reionization sources and additional absorption by Lyman Limit systems. Our model is, by construction, consistent with the observed evolution of the galaxy luminosity function at z<8 and with the observed evolution of Ly-{\alpha} forest at z<6. We also find that, for a wide range of values for the relative escape fraction that we consider reasonable, and which are consistent with the observational constraints on the relative escape fraction from lower redshifts, our reionization model is consistent with the WMAP constraint on the Thompson optical depth and with the SPT and EDGES constraints on the duration of reionization. We, therefore, conclude that it is possible to develop physically realistic models of reionization that are consistent with all existing observational constraints.},
doi = {10.1088/0004-637X/771/1/35},
url = {https://www.osti.gov/biblio/1406335}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 1,
volume = 771,
place = {United States},
year = {2013},
month = {6}
}