An Atlas of z=5.7 and z=6.5 Ly alpha Emitters

Abstract

We present an atlas of 88 z~5.7 and 30 z~6.5 Ly alpha emitters obtained from a wide-field narrowband survey. We combined deep narrowband imaging in 120A bandpass filters centered at 8150A and 9140A with deep BVRIz broadband imaging to select high-redshift galaxy candidates over an area of 4180 square arcmin. The goal was to obtain a uniform selection of comparable depth over the 7 targeted fields in the two filters. For the GOODS-N region of the HDF-N field, we also selected candidates using a 120A filter centered at 9210A. We made spectroscopic observations with Keck DEIMOS of nearly all the candidates to obtain the final sample of Ly alpha emitters. At the 3.3A resolution of the DEIMOS observations the asymmetric profile for Ly alpha emission with its steep blue fall-off can be clearly seen in the spectra of nearly all the galaxies. We show that the spectral profiles are surprisingly similar for many of the galaxies and that the composite spectral profiles are nearly identical at z=5.7 and z=6.5. We analyze the distributions of line widths and Ly alpha equivalent widths and find that the lines are marginally narrower at the higher redshift, with median values of 0.77A at z=6.5 and 0.92A at z=5.7. The line widths have a dependence on the Ly alpha luminosity of the form L(L alpha)^(0.3). We compare the surface densities and the luminosity functions at the two redshifts and find that there is a multiplicative factor of 2 decrease in the number density of bright Ly alpha emitters from z=5.7 to z=6.5, while the characteristic luminosity is unchanged.

Accepted for publication in the Astrophysical Journal

References in corpus (6)

• 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 End of the Reionization Epoch Probed by Ly-alpha Emitters at z=6.5 in the Subaru Deep Field
• Ly-alpha Emission-Line Galaxies at z = 3.1 in the Extended Chandra Deep Field South
• Luminosity Functions of Lyman Alpha Emitting Galaxies and Cosmic Reionization of Hydrogen
• Lyman-alpha Emitters During the Early Stages of Reionization

Cited by in corpus (169)

• The First Galaxies
• Evidence for PopIII-like stellar populations in the most luminous Lyman-$\alpha$ emitters at the epoch of re-ionisation: spectroscopic confirmation
• Using Lyman-alpha to detect galaxies that leak Lyman continuum
• New observations of z~7 galaxies: evidence for a patchy reionization
• Ly$\alpha$ emission from Green Peas: the role of circumgalactic gas density, covering, and kinematics
• Completing the Census of Ly-alpha Emitters at the Reionization Epoch
• 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
• CANDELS: The Contribution of the Observed Galaxy Population to Cosmic Reionization
• Spectroscopic confirmation of two Lyman break galaxies at redshift beyond 7
• Identification of the brightest Lyα emitters at z=6.6: implications for the evolution of the luminosity function in the re-ionisation era
• Accelerated Evolution of Ly$\alpha$ Luminosity Function at $\text{z}\gtrsim 7$ Revealed by the Subaru Ultra-Deep Survey for Ly$\alpha$ Emitters at $\text{z}=7.3$
• "Super-deblended" Dust Emission in Galaxies: I. The GOODS-North Catalog and the Cosmic Star Formation Rate Density out to Redshift 6
• Extreme Emission Line Galaxies in CANDELS: Broad-Band Selected, Star-Bursting Dwarf Galaxies at z>1
• The lack of intense Lyman~alpha in ultradeep spectra of z=7 candidates in GOODS-S: imprint of reionization?
• First Results from the Lyman Alpha Galaxies in the Epoch of Reionization (LAGER) Survey: Cosmological Reionization at z ~ 7
• Spectroscopy of z ~ 7 candidate galaxies: Using Lyman-alpha to constrain the neutral fraction of hydrogen in the high-redshift universe
• What is the physical origin of strong Lya emission? II. Gas Kinematics and Distribution of Lya Emitters
• Lyman-alpha emission properties of simulated galaxies: interstellar medium structure and inclination effects
• The Detectability of Lyman Alpha Emission from Galaxies during the Epoch of Reionization
• The Lyman alpha Reference Sample: II. HST imaging results, integrated properties and trends
• Texas Spectroscopic Search for Ly$\alpha$ Emission at the End of Reionization III. the Ly$\alpha$ Equivalent-width Distribution and Ionized Structures at $z>7$
• SILVERRUSH. III. Deep Optical and Near-Infrared Spectroscopy for Lya and UV-Nebular Lines of Bright Lya Emitters at z=6-7
• Blueberry galaxies: the lowest mass young starbursts
• Lyman-alpha emitters gone missing: evidence for late reionization?
• Slicing COSMOS with SC4K: the evolution of typical Lya emitters and the Lya escape fraction from z~2 to z~6
• Cosmic Reionization On Computers II. Reionization History and Its Back Reaction on Early Galaxies
• The Subaru COSMOS 20: Subaru Optical Imaging of the HST COSMOS Field with 20 Filters
• Green Pea Galaxies Reveal Secrets of Ly$\alpha$ Escape
• ALMA Observation of 158 micron [CII] Line and Dust Continuum of a z=7 Normally Star-forming Galaxy in the Epoch of Reionization
• The Lyman-alpha luminosity function at z=5.7-6.6 and the steep drop of the faint end: implications for reionization
• On the rapid demise of Lyman-alpha emitters at z>7 due to the increasing incidence of optically thick absorption systems
• On the Use of Ly-alpha Emitters as Probes of Reionization
• Lyα Emission from High Redshift Sources in COSMOS
• Inferences on the distribution of Ly-alpha emission of z~7 and z~8 galaxies
• Onset of Cosmic Reionization: Evidence of An Ionized Bubble Merely 680 Myrs after the Big Bang
• MMT Spectroscopy of Lyman-alpha at z$\simeq$7: Evidence for Accelerated Reionization Around Massive Galaxies
• High-Redshift Metals. II. Probing Reionization Galaxies with Low-Ionization Absorption Lines at Redshift Six
• Spectroscopic properties of luminous Lyman-α emitters at $z\approx 6-7$ and comparison to the Lyman-break population
• Evolution in the Escape Fraction of Ionizing Photons and the Decline in Strong Lya Emission from z>6 Galaxies
• A New Constraint on Reionization from Evolution of the Ly$\alpha$ Luminosity Function at $z\sim 6-7$ Probed by a Deep Census of $z=7.0$ Ly$\alpha$ Emitter Candidates to 0.3 $L^{\ast }$
• The galaxy environment of a QSO at z ~ 5.7
• Galactic Outflows and Photoionization Heating in the Reionization Epoch
• Lya escape from z~0.03 star-forming galaxies: the dominant role of outflows
• Ly alpha emitting galaxies as early stages in galaxy formation
• Physical Properties of Spectroscopically-Confirmed Galaxies at z >= 6. I. Basic Characteristics of the Rest-Frame UV Continuum and Lyman-alpha emission
• Escape of Lyman-alpha and continuum photons from star-forming galaxies
• An Ultraluminous Lyman Alpha Emitter with a Blue Wing at z=6.6
• No overdensity of Lyman Alpha Emitting Galaxies around a quasar at z~5.7
• FIR line emission from high redshift galaxies
• LAGER Ly$\alpha$ Luminosity Function at $z\sim 7$, Implications for Reionization
• A Lyman-α protocluster at redshift 6.9
• (Re)Solving Reionization with Lyα: How Bright Lyα Emitters account for the $z\approx 2-8$ Cosmic Ionizing Background
• ART^2 : Coupling Lyman-alpha Line and Multi-wavelength Continuum Radiative Transfer
• Lyman Alpha Emitters and Lyman Break Galaxies: dichotomous twins?
• A physical model for the evolving UV luminosity function of high redshift galaxies and their contribution to the cosmic reionization
• Morphologies of ~190,000 Galaxies at z=0-10 Revealed with HST Legacy Data. III. Continuum Profile and Size Evolution of Lya Emitters
• Can galactic outflows explain the properties of Ly-alpha emitters?
• Imaging the redshifted 21-cm pattern around the first sources during the cosmic dawn using the SKA
• The Ly$\alpha$ Luminosity Function and Cosmic Reionization at $z\sim$ 7.0: a Tale of Two LAGER Fields
• Confirmation of a Steep Luminosity Function for Lyman-alpha Emitters at z = 5.7: A Major Component of Reionization
• Three Lyman-alpha emitting galaxies within a quasar proximity zone at z=5.8
• The UV, Lyman-alpha, and dark matter halo properties of high redshift galaxies
• Complex Lyman Alpha Profiles in Redshift 6.6 Ultraluminous Lyman Alpha Emitters
• Mapping the Lyman-Alpha Emission Around a z~6.6 QSO with MUSE: Extended Emission and a Companion at Close Separation
• An Empirical Study of the Relationship between Lyα and UV selected Galaxies: Do Theorists and Observers `Select' the Same Objects?
• A Giant Protocluster of Galaxies at Redshift 5.7
• CHORUS II. Subaru/HSC Determination of the Ly$\alpha$ Luminosity Function at $z=7.0$: Constraints on Cosmic Reionization Model Parameter
• Lyman-alpha emitters gone missing: the different evolution of the bright and faint populations
• The MUSE Hubble Ultra Deep Field Survey: IV. Global properties of C III] emitters
• What is the Physical Origin of Strong Lya Emission? I. Demographics of Lya Emitter Structures
• Spectroscopic observation of Ly$\alpha$ emitters at z~7.7 and implications on re-ionization
• Searching for Neutral Hydrogen Halos around z ~ 2.1 and z ~ 3.1 Ly-alpha Emitting Galaxies
• Evolution of the observed Ly-alpha luminosity function from z = 6.5 to z = 7.7: evidence for the epoch of reionization ?
• Spectral Energy Distribution Fitting of HETDEX Pilot Survey Lyman-alpha Emitters in COSMOS and GOODS-N
• Faint Submillimter Galaxy Counts at 450 micron
• Formation of Metal-Poor Globular Clusters in Lyman alpha Emitting Galaxies in the Early Universe
• Local Analogs for High-redshift Galaxies: Resembling the Physical Conditions of the Interstellar Medium in High-redshift Galaxies
• SILVERRUSH. II. First Catalogs and Properties of ~2,000 Lya Emitters and Blobs at z~6-7 Identified over the 14-21 deg2 Sky
• Modelling high redshift Lyman-alpha Emitters
• The ALMA REBELS Survey: Efficient Ly$\alpha$ Transmission of UV-Bright z$\simeq$7 Galaxies from Large Velocity Offsets and Broad Line Widths
• Lyman-alpha spectroscopy of extreme [OIII] emitting galaxies at $z\simeq 2-3$: Implications for Ly$\alpha$ visibility and LyC leakage at $z>6$
• The environments of high redshift radio galaxies and quasars: probes of protoclusters
• Lyman-Alpha Emitting Galaxies as a Probe of Reionization: Large-Scale Bubble Morphology and Small-Scale Absorbers
• First Spectroscopic Confirmations of z ~ 7.0 Lya Emitting Galaxies in the LAGER Survey
• The Magellan M2FS Spectroscopic Survey of High-$z$ Galaxies: Lyα Emitters at $z\approx 6.6$ and the Evolution of Lyα Luminosity Function over $z\approx 5.7-6.6$
• The visibility of Lyman Alpha Emitters: constraining reionization, ionizing photons and dust
• The Stellar Mass, Star Formation Rate and Dark Matter Halo Properties of LAEs at $z\sim 2$
• Searching for z~7.7 Lyman Alpha Emitters in the COSMOS Field with NEWFIRM
• Were progenitors of local L* galaxies Lyman-alpha emitters at high redshift?
• z~1 Lya Emitters I. The Luminosity Function
• Observing the first galaxies
• Studying reionization with the next generation of Ly-alpha emitter surveys
• A High Space Density of Luminous Lyman Alpha Emitters at z~6.5
• Faint end of the $z\sim 3-7$ luminosity function of Lyman-alpha emitters behind lensing clusters observed with MUSE
• Connecting Faint End Slopes of the Lyman-$\alpha$ emitter and Lyman-break Galaxy Luminosity Functions
• The clustering of typical Ly$\alpha$ emitters from $z\sim 2.5-6$: host halo masses depend on Ly$\alpha$ and UV luminosities
• Physical Properties of Spectroscopically-Confirmed Galaxies at $z\ge 6$. III. Stellar Populations from SED Modeling with Secure Ly$\alpha$ Emission and Redshifts
• MUSE observations of the lensing cluster Abell 1689
• Lyman-alpha transmission properties of the intergalactic medium in the CoDaII simulation
• Crucial Factors for Lyα Transmission in the Reionizing Intergalactic Medium: Infall Motion, HII Bubble Size, and Self-shielded Systems
• Stars and gas in the most metal-poor galaxies I: COS and MUSE observations of SBS 0335-052E
• Lyman-Alpha Emitter Galaxies at z ~ 2.8 in the Extended Chandra Deep Field-South: I. Tracing the Large-Scale Structure via Lyman-Alpha Imaging
• Lyman alpha Luminosity Functions at Redshift z = 4.5
• 21-cm signature of the first sources in the Universe: Prospects of detection with SKA
• An Hα Impression of Lyα Galaxies at $z\simeq 6$ with Deep JWST/NIRCam Imaging
• Texas Spectroscopic Search for Ly$\alpha$ Emission at the End of Reionization I. Constraining the Ly$\alpha$ Equivalent Width Distribution at 6.0 < $z$ < 7.0
• The Ultraluminous Lyman Alpha Luminosity Function at z=6.6
• Lyman Alpha and MgII as Probes of Galaxies and their Environments
• The Faint-End Slope of the Redshift 5.7 Lyman Alpha Luminosity Function
• Detections of Faint Lyman-alpha Emitters at z = 5.7: Galaxy Building Blocks and Engines of Reionization
• Large-scale environment of z~5.7 CIV absorption systems I: projected distribution of galaxies
• The Evolution of the Ultraluminous Ly-alpha Luminosity Function over z=5.7-6.6
• A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5<z<6.8: Program Overview and a Sample of the Brightest Lyman-alpha Emitters
• First HETDEX Spectroscopic Determinations of Ly$\alpha$ and UV Luminosity Functions at $z=2-3$: Bridging a Gap Between Faint AGN and Bright Galaxies
• Large-scale environment of $z\sim 5.7$ CIV absorption systems -II. Spectroscopy of Lyman-$\alpha$ emitters
• The Magellan M2FS Spectroscopic Survey of High-Redshift Galaxies: A Sample of 260 Ly$\alpha$ Emitters at Redshift $z\approx 5.7$
• The Lyman alpha Reference Sample VI: Lyman alpha escape from the edge-on disk galaxy Mrk1486
• A Deep Ly$\alpha$ Survey in ECDF-S and COSMOS: I. General Properties of Lyman-alpha Emitters at $z\sim 2$
• Clustering and lifetime of Lyman Alpha Emitters in the Epoch of Reionization
• Texas Spectroscopic Search for Ly$\alpha$ Emission at the End of Reionization II. The Deepest Near-Infrared Spectroscopic Observation at $z\gtrsim 7$
• Resolved Lyman-α properties of a luminous Lyman-break galaxy in a large ionised bubble at z = 6.53
• What do observations of the Lyman-alpha fraction tell us about reionization?
• Ly alpha emissters at z=6.5 in the SSA22 field: An area more neutral or void at the end of the reionization epoch
• Clustering at high redshift: The connection between Lyman Alpha emitters and Lyman break galaxies
• Lyman-α Emitters in the context of hierarchical galaxy formation: predictions for VLT/MUSE surveys
• The impact of non-Gaussianity on the Epoch of Reionization parameter forecast using 21-cm power spectrum measurements
• CLEAR: Boosted Ly$\alpha$ Transmission of the Intergalactic Medium in UV bright Galaxies
• Constraining the Contribution of Galaxies and Active Galactic Nuclei to Cosmic Reionization
• SILVERRUSH. IX. Lya Intensity Mapping with Star-Forming Galaxies at z=5.7 and 6.6: A Possible Detection of Extended Lya Emission at $\gtrsim$100 comoving kpc around and beyond the Virial-Radius Scale of Galaxy Dark Matter Halos
• Cold accretion in early galaxy formation and its Lyman-alpha signatures
• The UV-continuum properties of Ly alpha selected galaxies at z=6.5
• Search for z~7 Ly-alpha emitters with Suprime-Cam at the Subaru Telescope
• CHORUS. I. Cosmic HydrOgen Reionization Unveiled with Subaru: Overview
• ALMA Observations of the Host Galaxy of GRB090423 at z=8.23: Deep Limits on Obscured Star Formation 630 Million Years After the Big Bang
• The MUSE-Wide survey: Detection of a clustering signal from Lyman-α-emitters at 3<z<6
• Unveiling Luminous Ly$\alpha$ Emitters at $z\approx 6$ through JWST/NIRCam Imaging in the COSMOS Field
• A Correlation Between Lyα Spectral Line Profile and Rest-Frame UV Morphology
• MUSE-inspired view of the quasar Q2059-360, its Lyman alpha blob, and its neighborhood
• Finding bright $z\ge 6.6$ Lyman-$\alpha$ emitters with lensing: prospects for Euclid
• Diffuse Lyman-alpha Halos around ~300 Spectroscopically Confirmed Lyman-alpha Emitters at z ~ 5.7
• A Lyman Break Galaxy in the Epoch of Reionization from HST Grism Spectroscopy
• Deep LBT/LUCI Spectroscopy of a Lyman-alpha Emitter Candidate at z ~ 7.7
• SHARDS Frontier Fields: Physical properties of a low mass Lyman-alpha emitter at z=5.75
• Lyman-alpha radiation pressure: an analytical exploration
• Constraints on the state of the IGM at $z\sim 8-10$ using redshifted 21-cm observations with LOFAR
• Bayesian approach to constraining the properties of ionized bubbles during reionization
• The ESO UVES Advanced Data Products Quasar Sample-V. Identifying the Galaxy Counterpart to the sub-Damped Ly-alpha System towards Q2239-2949
• A Search for z=7.3 Lyα Emitters behind Gravitationally Lensing Clusters
• Design for the First Narrowband Filter for the Dark Energy Camera: Optimizing the LAGER Survey for z ~ 7 Galaxies
• Local Group progenitors: Lyman Alpha bright?
• A deep search for CO J=2-1 emission from a Lyman-Alpha blob at z~6.595
• The Impact of Cosmic Variance on Inferences of Global Neutral Fraction Derived from Ly$\alpha$ Luminosity Functions During Reionization
• Probing the intergalactic medium during the Epoch of Reionization using 21-cm signal power spectra
• Molecular hydrogen in Lyman Alpha Emitters
• Lyman alpha Properties of Simulated Galaxies in Overdense Regions: Effects of Galactic Winds at z > 6
• Interacting LAEs at z = 5.1. Episodic star formation in a group of LAEs at z= 5.07
• Probing individual sources during reionization and cosmic dawn using SKA HI 21-cm observations
• Studying the Multi-frequency Angular Power Spectrum of the Cosmic Dawn 21-cm Signal
• Observations of Ly$\alpha$ Emitters at High Redshift
• Subaru FOCAS survey of z=7-7.1 Lyα emitters: a test for z >~ 7 Lyα photometric luminosity functions
• Spitzer's View of the Candidate Cluster and Protocluster Catalog (CCPC)
• Narrow band selected high redshift galaxy candidates contaminated by lower redshift O[III] ultrastrong emitter line galaxies
• A z ~ 5.7 Lyα Emission Line with an Ultra Broad Red Wing
• Cosmological contribution from population III stars in ultracompact minihalos
• Distinguishing AGN from starbursts as the origin of double peaked Lyman-Alpha Emitters in the reionization era
• The Evolution of Lyman Alpha Emitter Line Widths from z=5.7 to z=6.6
• Lyman-$\alpha$ Emitting Galaxies (LAEs) at Cosmic Dawn: Implications and Predictions
• A gradient boosting and broadband approach to finding Lyman-α emitting galaxies beyond narrowband surveys
• Unveiling the most luminous Lyman-α emitters in the epoch of reionisation