On the star formation efficiency in high redshift Lyman-α emitters

Abstract

We present semi-analytical models of high redshift Lyman-α emitters (LAEs) in order to constrain the star formation efficiency in those galaxies. Our supernova feedback induced star formation model along with Sheth-Tormman halo mass function correctly reproduces the shape, amplitude and the redshift evolution of UV and Lyman-α luminosity functions of LAEs in the redshift range z = 2 to 7.3. We show that the fraction of Lyman-α emitting galaxies increases with increasing redshifts reaching to unity just after the reionisation. However, we show that star formation efficiency in those LAEs does not show any redshift evolution within the uncertainty in available observations. This would have significant repercussion on the reionisation of the intergalactic medium.

References in corpus (68)

• The Global Schmidt Law in Star Forming Galaxies
• Starburst99: Synthesis Models for Galaxies with Active Star Formation
• Large scale bias and the peak background split
• The broken hierarchy of galaxy formation
• Cosmological SPH simulations: A hybrid multi-phase model for star formation
• On the normalisation of the cosmic star formation history
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Galactic Winds
• Rest-Frame Ultraviolet Spectra of z~3 Lyman Break Galaxies
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• Lyman Break Galaxies at Redshift z~3: Survey Description and Full Data Set
• Statistics of 207 Lya Emitters at a Redshift Near 7: Constraints on Reionization and Galaxy Formation Models
• The Subaru/XMM-Newton Deep Survey (SXDS). IV. Evolution of Lya Emitters from z=3.1 to 5.7 in the 1 deg^2 Field: Luminosity Functions and AGN
• A Steep Faint-End Slope of the UV Luminosity Function at z~2-3: Implications for the Global Stellar Mass Density and Star Formation in Low Mass Halos
• Keck Spectroscopy of Faint 3<z<7 Lyman Break Galaxies: - I. New constraints on cosmic reionisation from the luminosity and redshift-dependent fraction of Lyman-alpha emission
• The Effects of Photoionization on Galaxy Formation - I: Model and Results at z=0
• The End of the Reionization Epoch Probed by Ly-alpha Emitters at z=6.5 in the Subaru Deep Field
• The Dearth of z~10 Galaxies in all HST Legacy Fields -- The Rapid Evolution of the Galaxy Population in the First 500 Myr
• Spectroscopic Confirmation of Three z-Dropout Galaxies at z = 6.844 - 7.213: Demographics of Lyman-Alpha Emission in z ~ 7 Galaxies
• Ly-alpha Emission-Line Galaxies at z = 3.1 in the Extended Chandra Deep Field South
• The Direct Detection of Lyman-Continuum Emission from Star-forming Galaxies at z~3
• AGN-controlled cooling in elliptical galaxies
• Ly Alpha Emitters at z=5.7 in the Subaru Deep Field
• Keck Spectroscopy of Faint 3<z<8 Lyman Break Galaxies:- Evidence for a Declining Fraction of Emission Line Sources In the Redshift Range 6<z<8
• Line Emitting Galaxies Beyond a Redshift of 7: An Improved Method for Estimating the Evolving Neutrality of the Intergalactic Medium
• On the redshift-evolution of the Lyman-alpha escape fraction and the dust content of galaxies
• Photoionization Feedback in Low--Mass Galaxies at High Redshift
• The Subaru Deep Field Project: Lyman$\alpha$ Emitters at Redshift of 6.6
• The Expected Redshift Distribution of Gamma-Ray Bursts
• Systematic Identification of LAEs for Visible Exploration and Reionization Research Using Subaru HSC (SILVERRUSH). I. Program Strategy and Clustering Properties of ~2,000 Lya Emitters at z=6-7 over the 0.3-0.5 Gpc${}^2$ Survey Area
• Constraints on the Star Formation Efficiency of Galaxies During the Epoch of Reionization
• Detections of Lyman Continuum from Star-forming Galaxies at z~3 Through Subaru/Suprime-Cam Narrow-band Imaging
• Galaxies at z~7-8: z-dropouts in the Hubble Ultra Deep Field
• Accelerated Evolution of Ly$\alpha$ Luminosity Function at $\text{z}\gtrsim 7$ Revealed by the Subaru Ultra-Deep Survey for Ly$\alpha$ Emitters at $\text{z}=7.3$
• The Relationship Between Stellar Populations and Lyman Alpha Emission in Lyman Break Galaxies
• Early Enrichment of the Intergalactic Medium and its Feedback on Galaxy Formation
• Essential physics of early galaxy formation
• The production and escape of Lyman-Continuum radiation from star-forming galaxies at z~2 and their redshift evolution
• Models for Dusty Lyman alpha Emitters at High Redshift
• Ly-alpha Radiative Transfer in Cosmological Simulations and Application to a z~8 Emitter
• Accurately predicting the escape fraction of ionizing photons using restframe ultraviolet absorption lines
• A Luminosity Function of Lyman Alpha Emitting Galaxies at Redshift 4.5
• The Evolution of Ly-alpha Emitting Galaxies Between z = 2.1 and z = 3.1
• Luminosity Functions of Lyman Alpha Emitting Galaxies and Cosmic Reionization of Hydrogen
• The CALYMHA survey: Lya luminosity function and global escape fraction of Lya photons at z=2.23
• Lyman Alpha Emitters at Redshift 5.7 in the COSMOS Field
• Lyman alpha Radiative Transfer in Cosmological Simulations using Adaptive Mesh Refinement
• The Role of the Dust in Primeval Galaxies: A Simple Physical Model for Lyman Break Galaxies and Lyman Alpha Emitters
• The nature of luminous Lyman-alpha emitters at z~2-3: maximal dust-poor starbursts and highly ionising AGN
• The Physical Properties and Detectability of Reionization-Epoch Galaxies
• Radiative Transfer Modeling of Lyman Alpha Emitters. II. New Effects in Galaxy Clustering
• Constraining the population of 6 < z < 10 star-forming galaxies with deep near-IR images of lensing clusters
• A Minimalist Feedback-Regulated Model for Galaxy Formation During the Epoch of Reionization
• SILVERRUSH. VI. A simulation of Ly$\alpha$ emitters in the reionization epoch and a comparison with Subaru Hyper Suprime-Cam survey early data
• Lyman Alpha Emitters in the Hierarchically Clustering Galaxy Formation
• Signatures of reionization on Lyman alpha emitters
• An Empirically-Calibrated Model For Interpreting the Evolution of Galaxies During the Reionization Era
• Cosmic ray driven outflows from high redshift galaxies
• Searching for Star Formation Beyond Reionization
• Probing the star formation history using the redshift evolution of luminosity functions
• Constrained semi-analytical models of Galactic outflows
• On the decreasing fraction of Strong Ly$\alpha$ Emitters around $z$ $\sim$ $6$-$7$
• Lyman alpha Luminosity Functions at Redshift z = 4.5
• A Physical Model of Lyman Alpha Emitters
• Understanding the redshift evolution of the luminosity functions of Lyman-alpha emitters
• Star formation in high redshift galaxies including Supernova feedback: effect on stellar mass and luminosity functions
• Large-Scale Structure of Short-Lived LymanαEmitters
• Probing feedback in high-$z$ galaxies using extended UV luminosity functions

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• Probing Cosmic Reionization and Molecular Gas Growth with TIME
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