LATIS: Comparing Galaxy and IGM Tomography Maps as Tracers of Large-scale Structure and Protoclusters at $z\sim 2.5$

Abstract

We investigate the consistency of intergalactic medium (IGM) tomography and galaxy surveys as tracers of the cosmic web and protoclusters at $z\sim 2.5$. We use maps from the Ly$\alpha$ Tomography IMACS Survey (LATIS), which trace the distributions of Lyman-break galaxies (LBGs) and IGM Ly$\alpha$ absorption on $\simeq 4$ $h^{-1}$ cMpc scales within the same large volume. Overall, the joint distribution of IGM absorption and LBG density is well constrained and accurately described by a simple physical model. However, we identify several exceptional locations exhibiting strong IGM absorption indicative of a massive protocluster, yet no coincident overdensity of LBGs. As discussed by Newman et al., whose results we revise using the complete LATIS survey data, these are candidate ultraviolet (UV)-dim protoclusters that may harbor distinct galaxy populations missed by rest-UV spectroscopic surveys. We present follow-up observations targeting one such candidate embedded within Antu, an extended region of IGM absorption at $z=2.685$ that contains five IGM-selected protoclusters and has a total mass of $3\times 10^{15}{M}_{\odot }$. Ly$\alpha$ emitters trace the overall structure of Antu but avoid the center of the candidate UV-dim protocluster, which also appears to contain no submillimeter-selected sources. A near-infrared spectroscopic galaxy census is needed to determine whether this large region is dominated by galaxies with reduced or absent star-formation activity. This work adds to a growing and puzzling literature on discrepancies among different galaxy and IGM tracers, whose resolution promises to shed light on the early stages of environment-dependent galaxy evolution.

arXiv commentPublished in ApJ. This is second of two related papers published today

References in corpus (96)

• Planck 2015 results. XIII. Cosmological parameters
• SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
• EAZY: A Fast, Public Photometric Redshift Code
• Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
• Galactic star formation and accretion histories from matching galaxies to dark matter haloes
• UniverseMachine: The Correlation between Galaxy Growth and Dark Matter Halo Assembly from z=0-10
• zCOSMOS: A Large VLT/VIMOS redshift survey covering 0 < z < 3 in the COSMOS field
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• MultiDark simulations: the story of dark matter halo concentrations and density profiles
• The First Release COSMOS Optical and Near-IR Data and Catalog
• Lyman Break Galaxies at Redshift z~3: Survey Description and Full Data Set
• 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 Survey of Star-Forming Galaxies in the z=1.4-2.5 `Redshift Desert': Overview
• 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
• Euclid. I. Overview of the Euclid mission
• Galaxies and Intergalactic Matter at Redshift z~3: Overview
• COLOSSUS: A python toolkit for cosmology, large-scale structure, and dark matter halos
• COSMOS2020: A panchromatic view of the Universe to $z\sim 10$ from two complementary catalogs
• Recovery of the Power Spectrum of Mass Fluctuations from Observations of the Lyman-alpha Forest
• A Public Ks-selected Catalog in the COSMOS/UltraVISTA Field: Photometry, Photometric Redshifts and Stellar Population Parameters
• The VIMOS VLT Deep Survey final data release: a spectroscopic sample of 35016 galaxies and AGN out to z~6.7 selected with 17.5<=i_{AB}<=24.7
• Ancient Light from Young Cosmic Cities: Physical and Observational Signatures of Galaxy Proto-Clusters
• The VIMOS Ultra-Deep Survey: ~10,000 galaxies with spectroscopic redshifts to study galaxy assembly at early epochs 2<z<~6
• The Gaseous Environment of High-z Galaxies: Precision Measurements of Neutral Hydrogen in the Circumgalactic Medium of z ~ 2-3 Galaxies in the Keck Baryonic Structure Survey
• Tracing the molecular gas in distant submillimetre galaxies via CO(1-0) imaging with the EVLA
• The Connection Between Galaxies and Intergalactic Absorption Lines at Redshift 2<z<3
• Target Selection and Validation of DESI Quasars
• "Super-deblended" Dust Emission in Galaxies: II. Far-IR to (sub)millimeter photometry and high redshift galaxy candidates in the full COSMOS field
• Lyman-Alpha-Emitting Galaxies at z = 2.1 in ECDF-S: Building Blocks of Typical Present-day Galaxies?
• The Ly-alpha Properties of Faint Galaxies at z2-3 with Systemic Redshifts and Velocity Dispersions from Keck-MOSFIRE
• Star formation relations and CO SLEDs across the J-ladder and redshift
• The Spectroscopic Properties of Lyα-Emitters at z $\approx$ 2.7: Escaping Gas and Photons from Faint Galaxies
• Resolving the ISM at the peak of cosmic star formation with ALMA - The distribution of CO and dust continuum in z~2.5 sub-millimetre galaxies
• The Connection Between Reddening, Gas Covering Fraction, and the Escape of Ionizing Radiation at High Redshift
• The High Latitude Spectroscopic Survey on the Nancy Grace Roman Space Telescope
• The progeny of a Cosmic Titan: a massive multi-component proto-supercluster in formation at z=2.45 in VUDS
• The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections
• Bright and Faint Ends of Ly$\alpha$ Luminosity Functions at $\text{z}=2$ Determined by the Subaru Survey: Implications for AGN, Magnification Bias, and ISM HI Evolution
• First Data Release of the COSMOS Lyman-Alpha Mapping And Tomography Observations: 3D Lyman-$\alpha$ Forest Tomography at 2.05 < z < 2.55
• MApping the Most Massive Overdensities (MAMMOTH) II -- Discovery of an Extremely Massive Overdensity BOSS1441 at $z=2.32$
• The East Asian Observatory SCUBA--2 survey of the COSMOS field: unveiling 1147 bright sub-millimeter sources across 2.6 square degrees
• The CALYMHA survey: Lya luminosity function and global escape fraction of Lya photons at z=2.23
• Unveiling the Nature of Infrared Bright, Optically Dark Galaxies with Early JWST Data
• Automated Mining of the ALMA Archive in the COSMOS Field (A3COSMOS): I. Robust ALMA Continuum Photometry Catalogs and Stellar Mass and Star Formation Properties for ~700 Galaxies at z=0.5-6
• Lyman-alpha Forest Tomography from Background Galaxies: The First Megaparsec-Resolution Large-Scale Structure Map at z>2
• Spectroscopic Confirmation of a Protocluster at $z=3.37$ with a High Fraction of Quiescent Galaxies
• A Systematic Survey of Protoclusters at $z\sim 3-6$ in the CFHTLS Deep Fields
• Discovery of a large number of candidate proto-clusters traced by ~15 Mpc-scale galaxy overdensities in COSMOS
• Shadow of a Colossus: A z=2.45 Galaxy Protocluster Detected in 3D Ly-a Forest Tomographic Mapping of the COSMOS Field
• MApping the Most Massive Overdensities Through Hydrogen (MAMMOTH) I: Methodology
• The VLT LBG Redshift Survey - III. The clustering and dynamics of Lyman-break galaxies at z ~ 3
• Observational Requirements for Lyman-alpha Forest Tomographic Mapping of Large-Scale Structure at z ~ 2
• The Keck Baryonic Structure Survey: Using foreground/background galaxy pairs to trace the structure and kinematics of circumgalactic neutral hydrogen at $z\sim 2$
• MUSEQuBES: Calibrating the redshifts of Ly α emitters using stacked circumgalactic medium absorption profiles
• The VIMOS Ultra Deep Survey: The reversal of the star-formation rate $-$ density relation at $2<z<5$
• LATIS: The Ly$\alpha$ Tomography IMACS Survey
• VLT LBG Redshift Survey II: Interactions between galaxies and the IGM at z ~3
• Protocluster Discovery in Tomographic Ly$\alpha$ Forest Flux Maps
• Accurate mass and velocity functions of dark matter halos
• COSMOS2020: Discovery of a protocluster of massive quiescent galaxies at $z=2.77$
• MUSE Analysis of Gas around Galaxies (MAGG) -- IV: The gaseous environment of $z\sim$ 3-4 Lyman-alpha emitting galaxies
• Galaxy evolution in protoclusters
• Direct evidence for Ly$\alpha$ depletion in the protocluster core
• How Do Galaxies trace a large scale structure?: A case study around a massive protocluster at $z=3.13$
• MUSEQuBES: Characterizing the circumgalactic medium of redshift $\approx 3.3$ Ly$\alpha$ emitters
• Second Data Release of the COSMOS Lyman-alpha Mapping and Tomographic Observation: The First 3D Maps of the Detailed Cosmic Web at 2.05<z<2.55
• Nonparametric 3D map of the IGM using the Lyman-alpha forest
• A measurement of galaxy halo mass from the surrounding HI Lyα absorption
• Establishing a New Technique for Discovering Large-Scale Structure Using the ORELSE Survey
• A tomographic map of the large-scale matter distribution using the eBOSS Stripe 82 Ly-$\alpha$ forest
• Environmental Dependence of Galactic Properties Traced by Ly$\alpha$ Forest Absorption: Diversity among Galaxy Populations
• Predicted future fate of COSMOS galaxy protoclusters over 11 Gyr with constrained simulations
• BIRTH of the COSMOS Field: Primordial and Evolved Density Reconstructions During Cosmic High Noon
• Evaluating Lya Emission as a Tracer of the Largest Cosmic Structure at z~2.47
• A detailed study of massive galaxies in a protocluster at z=3.13
• Spectroscopic Confirmation of two Extremely Massive Protoclusters BOSS1244 and BOSS1542 at $z=2.24$
• Statistical correlation between the distribution of Ly$\alpha$ emitters and IGM HI at $z\sim 2.2$ mapped by Subaru/Hyper Suprime-Cam
• MAMMOTH: Confirmation of Two Massive Galaxy Overdensities at $z=2.24$ with H$\alpha$ Emitters
• GOGREEN: a critical assessment of environmental trends in cosmological hydrodynamical simulations at z ~ 1
• A population of ultraviolet-dim protoclusters detected in absorption
• Characterizing Protoclusters and Protogroups at z $\sim$ 2.5 Using Ly$\alpha$ Tomography
• Cosmic Galaxy-IGM HI Relation at $z\sim 2-3$ Probed in the COSMOS/UltraVISTA $1.6$ deg${}^2$ Field
• Observational Evidence for Large-Scale Gas Heating in a Galaxy Protocluster at z=2.30
• Catch Me if You Can: Biased Distribution of Ly$\alpha$-emitting Galaxies according to the Viewing Direction
• Interrelation of the environment of Ly$\alpha$ emitters and massive galaxies at $2<z<4.5$
• 3D Distribution Map of HI Gas and Galaxies Around an Enormous Ly$\alpha$ Nebula and Three QSOs at $z=2.3$ Revealed by the HI Tomographic Mapping Technique
• 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
• Discovering Large-Scale Structure at $2<z<5$ in the C3VO Survey
• Constraining the Fluctuating Gunn-Peterson Approximation Using Lyman-$\alpha$ Forest Tomography at $z=2$
• Detecting preheating in proto-clusters with Lyman-$\alpha$ Forest Tomography
• Searching for the shadows of giants II: the effect of local ionisation on the Lyman-$\alpha$ absorption signatures of protoclusters at redshift $z\sim 2.4$
• The SCUBA-2 Cosmology Legacy Survey: The EGS deep field -- III. The evolution of faint submillimeter galaxies at $z<4$
• A Search for Massive Galaxy Population in a Protocluster of LAEs at $z=2.39$ near the Radio Galaxy 53W002
• Are Lyα emitters segregated in protoclusters regions?
• LATIS: A Sample of IGM-selected Protoclusters and Protogroups at $z\sim 2.5$
• Cosmological-Scale Lyman-alpha Forest Absorption Around Galaxies and AGN Probed with the HETDEX and SDSS Spectroscopic Data

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• LATIS: A Sample of IGM-selected Protoclusters and Protogroups at $z\sim 2.5$
• LATIS Data Release: $\sim 4200$ Spectra of $z\sim 2-3$ Galaxies, Redshifts, and Intergalactic Medium Tomography Maps