# The visibility of Lyman α emitters during reionization

@article{Dayal2010TheVO,
title={The visibility of Lyman $\alpha$ emitters during reionization},
author={Pratika Dayal and Antonella Maselli and Andrea Ferrara},
journal={Monthly Notices of the Royal Astronomical Society},
year={2010},
volume={410},
pages={830-843}
}
• Published 2010
• Physics
• Monthly Notices of the Royal Astronomical Society
We present the first Lyman α emitter (LAE) study that combines: (i) cosmological smoothed particle hydrodynamic (SPH) simulations run using GADGET-2, (ii) radiative transfer simulations (CRASH) and (iii) a previously developed LAE model. This complete LAE model accounts for the intrinsic LAE, Lyα/continuum luminosity, dust enrichment and Lyα transmission through the intergalactic medium (IGM) to quantify the effects of reionization, dust and velocity fields on the Lyα and UV luminosity… Expand

#### Figures and Tables from this paper

The visibility of Lyman α emitters: constraining reionization, ionizing photon escape fractions and dust
We couple state of the art cosmological simulations (GADGET-2) with a dust model and a radiative transfer code (pCRASH) to build a complete model for high-redshift Lyman Alpha emitters (LAEs).Expand
Lyα emitters and Lyman-break galaxies: dichotomous twins
• Physics
• 2012
We extend our previous studies aimed at modelling Lyman α emitters (LAEs) to the second population of high-redshift sources, Lyman-break galaxies (LBGs), with the final goal of investigating theExpand
Joint Lyman α emitters – quasars reionization constraints
• Physics
• 2012
We present a novel method to investigate c reionization, using joint spectral information on high-redshift Lyman α emitters (LAEs) and quasi-stellar objects (QSOs). Although LAEs have been proposedExpand
The UV, Lyman α, and dark matter halo properties of high-redshift galaxies
• Physics
• 2015
We explore the properties of high-redshift Lyman alpha emitters (LAEs), and their link with the Lyman-break galaxy (LBG) population, using a semi-analytic model of galaxy formation that takes intoExpand
Lyman α emitters in cosmological simulations – I. Lyman α escape fraction and statistical properties at z= 3.1
• Physics
• 2011
We use very large cosmological smoothed particle hydrodynamics simulations to study the properties of high-redshift Lyman α emitters (LAEs). We identify star-forming galaxies at z= 3.1 in aExpand
Exploring 21CM - Lyman Alpha Emitter Synergies for SKA
• Physics
• 2016
We study the signatures of reionization and ionizing properties of the early galaxies in the cross-correlations between the 21cm emission from the spin-flip transition of neutral hydrogen (H I ) andExpand
Radiative Transfer Modeling of Lyman Alpha Emitters. II. New Effects in Galaxy Clustering
We study the clustering properties of z~5.7 Lyman-alpha emitters (LAEs) in a cosmological reionization simulation with a full Lya radiative transfer calculation. Lya radiative transfer substantiallyExpand
Lyα Emitting Galaxies as a Probe of Reionisation
• M. Dijkstra
• Physics
• Publications of the Astronomical Society of Australia
• 2014
Abstract The Epoch of Reionization (EoR) represents a milestone in the evolution of our Universe. Star-forming galaxies that existed during the EoR likely emitted a significant fraction ( ~ 5 − 40%)Expand
Observational Signatures of Lyman Alpha Emission from Early Galaxy Formation
The next generation of telescopes aim to directly observe the first generation of galaxies that initiated the reionization process in our Universe. The Lyman Alpha (Lya) emission line is robustlyExpand
Clustering and lifetime of Lyman Alpha Emitters in the Epoch of Reionization
• Physics
• 2015
We calculate Lyman Alpha Emitter (LAE) angular correlation functions (ACFs) at $z \simeq 6.6$ and the fraction of lifetime (for the 100 Myrs preceding $z\simeq6.6$) galaxies spend as Lyman BreakExpand

#### References

SHOWING 1-10 OF 76 REFERENCES
Lyman alpha emitter evolution in the reionization epoch
• Physics
• 2009
Combining cosmological smoothed particle hydrodynamics (SPH) simulations with a previously developed Lyα production/transmission model and the Early Reionization Model (ERM; reionization ends atExpand
The cool side of Lyman alpha emitters
• Physics
• 2010
We extend a previous study of Lyman alpha emitters (LAEs) based on hydrodynamical cosmological simulations, by including two physical processes important for LAEs: (i) Lyα and continuum luminositiesExpand
Lyman-alpha Emitters and Lyman-break Galaxies at z=3-6 in Cosmological SPH Simulations
• Physics
• 2010
We study the properties of Lyman-alpha emitters (LAEs) and Lyman-break galaxies (LBGs) at z=3-6 using cosmological SPH simulations. We investigate two simple scenarios for explaining the observedExpand
Lyα emitters during the early stages of reionization
• Physics
• 2007
We investigate the potential of exploiting Lyα emitters (LAEs) to constrain the volume-weighted mean neutral hydrogen fraction of the intergalactic medium, x H1 , at high redshifts (specifically z ∼Expand
Signatures of reionization on Lyα emitters
• Physics
• 2008
We use a semi-analytic model of Lyα emitters (LAEs) to constrain the reionization history. By considering two physically motivated scenarios in which reionization ends either early [earlyExpand
On the Detectability of Lyman-alpha Emission in Star-forming Galaxies: The Role of Dust
Context: Lyman-alpha (Lyα) radiation is now widely used to investigate the galaxy formation and evolution in the high redshift universe. However, without a rigorous understanding of the processesExpand
Constraining reionization with the evolution of the luminosity function of Lyα emitting galaxies
• Physics
• 2005
At redshifts beyond z 6, as the mean fraction of neutral hydrogen xH i in the intergalactic medium (IGM) increases, the line flux of Lyα emitters can be significantly attenuated, which can result inExpand
Studying reionization with Lyα emitters
• Physics
• 2007
We show that observations of high-redshift Lyα emitters (LAEs) have the potential to provide definitive evidence for reionization in the near future. Using 200-Mpc radiative transfer simulations, weExpand
The impact of The IGM on high-redshift Lyα emission lines
• Physics
• 2007
We calculate the impact of the intergalactic medium (IGM) on the observed Lyα lines emitted by galaxies in an ionized IGM at z 4. Our model accounts for gas clumping in the IGM and for the fact thatExpand
Probing reionization with Lyman α emission lines
Lyman a emission from high-redshift galaxies may be a powerful probe of the ionization history of the intergalactic medium (IGM) at z > 6; the observed Lyman a emission line is sensitive to the IGMExpand