The Habitat Segregation between Lyman Break Galaxies and Lyman alpha Emitters around a QSO at z~5

Abstract

We carried out a target survey for Lyman break galaxies (LBGs) and Lyman alpha emitters (LAEs) around QSO SDSS J0211-0009 at z=4.87. The deep and wide broadband and narrowband imaging simultaneously revealed the perspective structure of these two high-z populations. The LBGs without Ly-alpha emission form a filamentary structure including the QSO, while the LAEs are distributed around the QSO but avoid it within a distance of ~4.5Mpc. On the other hand, we serendipitously discovered a protocluster with a significant concentration of LBGs and LAEs where no strongly UV ionizing source such as a QSO or radio galaxy is known to exist. In this cluster field, two populations are spatially cross-correlated with each other. The relative spatial distribution of LAEs to LBGs is in stark contrast between the QSO and the cluster fields. We also found a weak trend showing that the number counts based on Ly-alpha and UV continuum fluxes of LAEs in the QSO field are slightly lower than in the cluster field, whereas the number counts of LBGs are almost consistent with each other. The LAEs avoid the nearby region around the QSO where the local UV background radiation could be ~100 times stronger than the average for the epoch. The clustering segregation between LBGs and LAEs seen in the QSO field could be due to either enhanced early galaxy formation in an overdense environment having caused all the LAEs to evolve into LBGs, or local photoionization due to the strong UV radiation from the QSO effectively causing a deficit in low-mass galaxies like LAEs.

arXiv commentAccepted for publication in APJ. Version with high resolution figures available at http://zone.mtk.nao.ac.jp/~kashik/z5qso/z5qso_full.pdf

References in corpus (49)

• Stellar population synthesis at the resolution of 2003
• The Demography of Massive Dark Objects in Galaxy Centres
• A Unified Model for the Evolution of Galaxies and Quasars
• Cosmological Evolution of the Hard X-ray AGN Luminosity Function and the Origin of the Hard X-ray Background
• Subaru Prime Focus Camera -- Suprime-Cam --
• The age dependence of halo clustering
• Lyman Alpha Imaging of a Proto-Cluster Region at <z>=3.09
• The Rest-Frame Optical Properties of z~3 Galaxies
• Galaxies and Intergalactic Matter at Redshift z~3: Overview
• Black Hole Mass Estimates from Reverberation Mapping and from Spatially Resolved Kinematics
• Hydrodynamic Simulations of Galaxy Formation. II. Photoionization and the Formation of Low Mass Galaxies
• 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
• Clustering of High Redshift ($z\ge 2.9$) Quasars from the Sloan Digital Sky Survey
• Ly Alpha Emitters at z=5.7 in the Subaru Deep Field
• The Photo-Evaporation of Dwarf Galaxies During Reionization
• Subaru Deep Survey II. Luminosity Functions and Clustering Properties of Lya Emitters at z=4.86 in the Subaru Deep Field
• The Discovery of Primeval Large-Scale Structures with Forming Clusters at Redshift 6
• The most distant structure of galaxies known: a protocluster at z=4.1
• Spectroscopic Identification of a Proto-Cluster at z=2.300: Environmental Dependence of Galaxy Properties at High Redshift
• The Physical Nature of Lyman Alpha Emitting Galaxies at z=3.1
• Properties of Ly-alpha emitters around the radio galaxy MRC 0316-257
• The Subaru Deep Field: The Optical Imaging Data
• High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data
• Detection of Lyman-alpha Emitting Galaxies at Redshift z=4.55
• Subaru Deep Survey. IV. Discovery of a Large-Scale Structure at Redshift \simeq 5
• The Stellar Masses and Star Formation Histories of Galaxies at z ~ 6: Constraints from Spitzer Observations in the Great Observatories Origins Deep Survey
• The Stellar Mass Density at z~6 from Spitzer Imaging of i-drop Galaxies
• High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data III: A Color Selected Sample at i^*<20 in the Fall Equatorial Stripe
• Discovery of six Ly alpha emitters near a radio galaxy at z ~ 5.2
• The Distribution of Lya-Emitting Galaxies at z=2.3
• Clustering of Lyman Break Galaxies at z=4 and 5 in The Subaru Deep Field: Luminosity Dependence of The Correlation Function Slope
• A New Measurement of the Stellar Mass Density at z~5: Implications for the Sources of Cosmic Reionization
• Clustering of Star-forming Galaxies Near a Radio Galaxy at z=5.2
• Properties of host haloes of Lyman-break galaxies and Lyman-alpha Emitters from their number densities and angular clustering
• An Overdensity of Galaxies near the Most Distant Radio-Loud Quasar
• The evolution of galaxies from primeval irregulars to present-day ellipticals
• Criteria for the Formation of Population III Objects in the Ultraviolet Background Radiation
• Spectroscopy of z~6 i-dropout Galaxies: Frequency of Ly-alpha Emission and the Sizes of Ly-alpha Emitting Galaxies
• Evolution of the Ionizing Background at High Redshifts
• An Optical/Near-Infrared Study of Radio-Loud Quasar Environments II. Imaging Results
• Proto-Quasars:Physical States and Observable Properties
• Luminosity Functions of Lyman-Break Galaxies at z~4 and 5 in the Subaru Deep Field
• Large Cosmic Variance in the Clustering Properties of Lyman Alpha Emitters at z~5
• The Mysterious Absence of Neutral Hydrogen within One Mpc of a Luminous Quasar at Redshift 2.168
• Radiation-Hydrodynamical Collapse of Pregalactic Clouds in the Ultraviolet Background
• Formation of Primordial Galaxies under UV background Radiation
• Large-scale structure of Lyman break galaxies around a radio galaxy protocluster at z~4
• Search for Galaxy Clustering around a Quasar Pair at z=4.25 found in the Sloan Digital Sky Survey

Cited by in corpus (64)

• Distant Radio Galaxies and their Environments
• The realm of the galaxy protoclusters
• Subaru high-z exploration of low-luminosity quasars (SHELLQs). I. Discovery of 15 quasars and bright galaxies at 5.7 < z < 6.9
• Binary Quasars at High Redshift I: 24 New Quasar Pairs at z ~ 3-4
• Lyman break galaxies, Lya emitters and a radio galaxy in a protocluster at z=4.1
• The Subaru high-z quasar survey: discovery of faint z~6 quasars
• GOLDRUSH. III. A Systematic Search of Protoclusters at $z\sim 4$ Based on the $>100\mathrm{de}{\mathrm{g}}^2$ Area
• LCDM predictions for galaxy protoclusters I: the relation between galaxies, protoclusters and quasars at z~6
• A Systematic Survey of Protoclusters at $z\sim 3-6$ in the CFHTLS Deep Fields
• Discovery of a protocluster at z~6
• The most luminous quasars do not live in the most massive dark matter haloes at any redshift
• The primordial environment of super massive black holes: large scale galaxy overdensities around $z\sim 6$ QSOs with LBT
• MUSE Analysis of Gas around Galaxies (MAGG) -- III: The gas and galaxy environment of z = 3-4.5 quasars
• The galaxy environment of a QSO at z ~ 5.7
• SILVERRUSH. VII. Subaru/HSC Identifications of 42 Protocluster Candidates at z~6-7 with the Spectroscopic Redshifts up to z=6.574: Implications for Cosmic Reionization
• A Large Number of z > 6 Galaxies around a QSO at z = 6.43: Evidence for a Protocluster?
• Lyman-alpha Emitters and Lyman-break Galaxies at z=3-6 in Cosmological SPH Simulations
• Luminous Quasars Do Not Live in the Most Overdense Regions of Galaxies at z~4
• Three Lyman-alpha emitting galaxies within a quasar proximity zone at z=5.8
• Large Scale Environment of a $z=6.61$ Luminous Quasar Probed by Ly$\alpha$ Emitters and Lyman Break Galaxies
• Clustering of quasars in a wide luminosity range at redshift 4 with Subaru Hyper Suprime-Cam wide field imaging
• No excess of bright galaxies around the redshift 7.1 quasar ULAS J1120+0641
• The environments of high redshift radio galaxies and quasars: probes of protoclusters
• Identification of High-Redshift Galaxy Overdensities in GOODS-N and GOODS-S
• An H-alpha search for over-dense regions at z=2.23
• The primordial environment of supermassive black holes (II): deep Y and J band images around the z=6.3 quasar SDSS J1030+0524
• Strong Clustering of Lyman Break Galaxies around Luminous Quasars at z~4
• The diverse galaxy counts in the environment of high-redshift massive black holes in Horizon-AGN
• Probing the existence of a rich galaxy overdensity at z=5.2
• Close companions to two high-redshift quasars
• Active Galactic Nucleus Environments and Feedback to Neighboring Galaxies at $z\sim 5$ Probed by Lyman-Alpha Emitters
• Discovery of an Overdensity of Lyman-alpha Emitters Around a $\mathrm{z}\sim 4$ QSO with the Large Binocular Telescope
• No Ly$\alpha$ emitters detected around a QSO at z=6.4: Suppressed by the QSO?
• Clustering of Lyman-alpha Emitters Around Quasars at $z\sim 4$
• Planck far-infrared detection of Hyper Suprime-Cam protoclusters at $\mathbf{z}\sim 4$: hidden AGN and star formation activity
• Evaluating Lya Emission as a Tracer of the Largest Cosmic Structure at z~2.47
• ALMA reveals large overdensity and strong clustering of galaxies in quasar environments at $z\sim 4$
• A detailed study of massive galaxies in a protocluster at z=3.13
• A census of galaxy constituents in a Coma Progenitor observed at z>3
• Measuring the Density Fields around Bright Quasars at $z\sim 6$ with XQR-30 Spectra
• Enhanced star formation in $z\sim 6$ quasar companions
• Clustering of Ly-alpha emitters around luminous quasars at z = 2-3: an alternative probe of reionization on galaxy formation
• A Mixture of LBG Overdensities in the Fields of Three $6<z<7$ Quasars: Implications for the Robustness of Photometric Selection
• Suppression of Low-mass Galaxy Formation around Quasars at z~2-3
• Cosmological 3D HI Gas Map with HETDEX Ly$\alpha$ Emitters and eBOSS QSOs at $z=2$: IGM-Galaxy/QSO Connection and a $\sim$ 40-Mpc Scale Giant HII Bubble Candidate
• An Overdensity of Lyman Break Galaxies Around the Hot Dust-Obscured Galaxy WISE J224607.56$-$052634.9
• Large Scale Overdensity of Lyman Break Galaxies Around the z=6.3 Ultraluminous Quasar J0100+2802
• An overdensity of red galaxies around the hyperluminous dust-obscured quasar W1835$+$4355 at $z=2.3$
• A lack of LAEs within 5Mpc of a luminous quasar in an overdensity at z=6.9: potential evidence of quasar negative feedback at protocluster scales
• The Role of Quasar Radiative Feedback on Galaxy Formation during Cosmic Reionization
• JCMT/SCUBA-2 uncovers an excess of $850\mu$m counts on megaparsec scales around high-redshift quasars. Characterization of the overdensities and their alignment with the quasars' Ly$\alpha$ nebulae
• Faint Quasars Live in the Same Number Density Environments as Lyman Break Galaxies at z ~ 4
• Connecting the growth of galaxies to the large-scale environment in a massive node of the Cosmic Web at z~3
• Are there more galaxies than we see around high-$z$ quasars?
• Overdensity of Lyman-Break Galaxy Candidates Around Hot Dust-Obscured Galaxies
• Filter Induced Bias in Lyα Emitter Surveys: A Comparison Between Standard and Tunable Filters. Gran Telescopio Canarias Preliminary Results
• Are Lyα emitters segregated in protoclusters regions?
• The feedback of quasars on their galactic environment
• A unique window into the Epoch of Reionisation: A double-peaked Lyman-$\alpha$ emitter in the proximity zone of a quasar at $z\sim 6.6$
• Environments around quasars at $z\sim$3 revealed by wide-field imaging with Subaru HSC and CFHT
• The Diversity of Environments Around Luminous Quasars at Redshift $z\sim 6$
• Environment of SDSS quasars at $z=0.4$$-$$1.0$ explored by Subaru HSC
• Can luminous Lyman alpha emitters at $z$ $\simeq$ 5.7 and $z$ $\simeq$ 6.6 suppress star formation?
• Quasar clustering at redshift 6