The HETDEX Pilot Survey. II. The Evolution of the Ly-alpha Escape Fraction from the UV Slope and Luminosity Function of 1.9<z<3.8 LAEs

Abstract

We study the escape of Ly-alpha photons from Ly-alpha emitting galaxies (LAEs) and the overall galaxy population using a sample of 99 LAEs at 1.9<z<3.8 detected through integral-field spectroscopy of blank fields by the HETDEX Pilot Survey. For 89 LAEs showing counterparts in deep broad-band images we measure the rest-frame UV luminosity and the UV slope, which we use to estimate E(B-V) under the assumption of a constant intrinsic UV slope for LAEs. These two quantities are used to measure the dust-corrected star formation rate (SFR). A comparison between the observed Ly-alpha luminosity and that predicted by the dust-corrected SFR yields the Ly-alpha escape fraction. We also measure the Ly-alpha luminosity function. Integration of the luminosity function provides a measurement of the Ly-alpha luminosity density across our redshift range. We combine our data with that from other surveys at 0.3<z<7.7 to trace the evolution of the Ly-alpha luminosity density. We then compare it to that expected from the star-formation history of the universe in order to characterize the evolution of the Ly-alpha escape fraction of the overall galaxy population [abriged]

arXiv commentsubmitted to the Astrophysical Journal, revised

References in corpus (86)

• Stellar population synthesis at the resolution of 2003
• Star Formation in Galaxies Along the Hubble Sequence
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• The Cosmic Evolution Survey (COSMOS) -- Overview
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Dust Absorption And The Ultraviolet Luminosity Density At z \approx 3 As Calibrated By Local Starburst Galaxies
• The First Release COSMOS Optical and Near-IR Data and Catalog
• A new photometric technique for the joint selection of star-forming and passive galaxies at 1.4<z<2.5
• 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
• The transition from Population III to normal galaxies: Ly-a and HeII 1640 emission and the ionising properties of high redshift starburst galaxies
• The Stellar, Gas and Dynamical Masses of Star-Forming Galaxies at z~2
• The Rest-Frame Optical Properties of z~3 Galaxies
• 3D Lyman-alpha radiation transfer. I. Understanding Lyman-alpha line profile morphologies
• Starbursts and Star Clusters in the Ultraviolet
• 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
• Reddening and Star Formation in Starburst Galaxies
• UV Continuum Slope and Dust Obscuration from z~6 to z~2: The Star Formation Rate Density at High Redshift
• Multi-Wavelength Constraints on the Cosmic Star Formation History from Spectroscopy: the Rest-Frame UV, H-alpha, and Infrared Luminosity Functions at Redshifts 1.9<z<3.4
• The End of the Reionization Epoch Probed by Ly-alpha Emitters at z=6.5 in the Subaru Deep Field
• Dust Obscuration and Metallicity at High Redshift: New Inferences from UV, H-alpha, and 8 Micron Observations of z~2 Star-Forming Galaxies
• Discovery of z~8 Galaxies in the HUDF from ultra-deep WFC3/IR Observations
• Ly-alpha Emission-Line Galaxies at z = 3.1 in the Extended Chandra Deep Field South
• Infared Observations of Nebular Emission Lines from Galaxies at z = 3
• A Deep, Wide Field, Optical, and Near Infrared Catalog of a Large Area around the Hubble Deep Field North
• Ly Alpha-Emitting Galaxies at z=3.1: L* Progenitors Experiencing Rapid Star Formation
• Lyman Alpha Radiation From Collapsing Protogalaxies I: Characteristics of the Emergent Spectrum
• High-z Lyman-alpha Emitters. I. A Blank-Field Search for Objects Near Redshift z=3.4 in and around the Hubble Deep Field and the Hawaii Deep Field SSA22
• The Density of Lyman-alpha Emitters at Very High Redshift
• Large Equivalent width Lyman-alpha line emission at z=4.5: young galaxies in a young universe
• Ly Alpha Emitters at z=5.7 in the Subaru Deep Field
• On the redshift-evolution of the Lyman-alpha escape fraction and the dust content of galaxies
• The Stellar Mass Density and Specific Star Formation Rate of the Universe at z~7
• The Multiwavelength Survey by Yale-Chile (MUSYC): Survey Design and Deep Public UBVRIz' Images and Catalogs of the Extended Hubble Deep Field South
• First Results from the Large Area Lyman Alpha Survey
• Subaru Deep Survey II. Luminosity Functions and Clustering Properties of Lya Emitters at z=4.86 in the Subaru Deep Field
• Lyman Alpha Radiative Transfer in a Multi-Phase Medium
• A Population of Faint Extended Line Emitters and the Host Galaxies of Optically Thick QSO Absorption Systems
• Very blue UV-continuum slopes of low luminosity z~7 galaxies from WFC3/IR: Evidence for extremely low metallicities?
• The Great Observatories Origins Deep Survey
• On the Stellar Populations and Evolution of Star-Forming Galaxies at 6.3 < z < 8.6
• Intergalactic Transmission and its Impact on the Lyα Line
• Lyman-Alpha-Emitting Galaxies at z = 2.1 in ECDF-S: Building Blocks of Typical Present-day Galaxies?
• The Physical Nature of Lyman Alpha Emitting Galaxies at z=3.1
• Escape of about five per cent of Lyman-alpha photons from high-redshift star-forming galaxies
• The XMM-LSS survey. Survey design and first results
• Stellar Populations of Lyman Alpha Emitters at z~6-7: Constraints on the Escape Fraction of Ionizing Photons from Galaxy Building Blocks
• The Impact of The IGM on High-Redshift Lyman Alpha Emission Lines
• Discovery of 9 Ly alpha emitters at redshift z~3.1 using narrow-band imaging and VLT spectroscopy
• The Relationship Between Stellar Populations and Lyman Alpha Emission in Lyman Break Galaxies
• 3D Lyman-alpha radiation transfer. III. Constraints on gas and stellar properties of z~3 Lyman break galaxies (LBG) and implications for high-z LBGs and Lyman-alpha emitters(LAEs)
• HETDEX pilot survey for emission-line galaxies - I. Survey design, performance, and catalog
• Lyman Alpha Galaxies: Primitive, Dusty or Evolved Galaxies?
• Radiative Transfer Modeling of Lyman Alpha Emitters. I. Statistics of Spectra and Luminosity
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• Effects of Dust Geometry in Lyman Alpha Galaxies at z = 4.4
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• Spitzer Constraints on the Stellar Populations of Lyman-Alpha Emitting Galaxies at z = 3.1
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• Lyman alpha emission in high-redshift galaxies
• The escape of Lyman photons from a young starburst: the case of Haro 11
• The UDF05 Follow-up of the HUDF: II. Constraints on Reionization from z-dropout Galaxies
• Empirical Estimate of Lyman-alpha Escape Fraction in a Statistical Sample of Lyman-alpha Emitters
• The Munich Near-Infrared Cluster Survey - I. Field selection, object extraction, and photometry
• The Multiwavelength Survey by Yale-Chile (MUSYC): Wide K-band Imaging, Photometric Catalogs, Clustering and Physical Properties of Galaxies at z~2
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• The DEEP2 Redshift Survey: Lyman Alpha Emitters in the Spectroscopic Database
• Ly-alpha emitters: blue dwarfs or supermassive ULIRGs? Evidence for a transition with redshift
• B2 0902+34: A Collapsing Protogiant Elliptical Galaxy at z=3.4

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