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

Abstract

We present results from the Keck Baryonic Structure Survey (KBSS), a unique spectroscopic survey designed to explore the connection between galaxies and intergalactic baryons. The KBSS is optimized for the redshift range z ~ 2-3, combining S/N ~ 100 Keck/HIRES spectra of 15 hyperluminous QSOs with densely sampled galaxy redshift surveys surrounding each QSO sightline. We perform Voigt profile decomposition of all 6000 HI absorbers within the full Lya forest in the QSO spectra. Here we present the distribution, column density, kinematics, and absorber line widths of HI surrounding 886 star-forming galaxies with 2.0 < z < 2.8 and within 3 Mpc of a QSO sightline. We find that N_HI and the multiplicity of HI components increase rapidly near galaxies. The strongest HI absorbers within ~ 100 physical kpc of galaxies have N_HI ~ 3 dex higher than those near random locations in the IGM. The circumgalactic zone of most enhanced HI absorption (CGM) is found within 300 kpc and 300 km/s of galaxies. Nearly half of absorbers with log(N_HI) > 15.5 are found within the CGM of galaxies meeting our photometric selection, while their CGM occupy only 1.5% of the cosmic volume. The spatial covering fraction, multiplicity of absorption components, and characteristic N_HI remain elevated to transverse distances of 2 physical Mpc. Absorbers with log(N_HI) > 14.5 are tightly correlated with the positions of galaxies, while absorbers with lower N_HI are correlated only on Mpc scales. Redshift anisotropies on Mpc scales indicate coherent infall toward galaxies, while on scales of ~100 physical kpc peculiar velocities of 260 km/s are indicated. The median Doppler widths of absorbers within 1-3 virial radii of galaxies are ~50% larger than randomly chosen absorbers of the same N_HI, suggesting higher gas temperatures and/or increased turbulence likely caused by accretion shocks and/or galactic winds.

Accepted to ApJ

References in corpus (18)

• The Mass-Metallicity Relation at z~2
• Mass, Metal, and Energy Feedback in Cosmological Simulations
• The Stellar, Gas and Dynamical Masses of Star-Forming Galaxies at z~2
• The Origin of the Galaxy Mass-Metallicity Relation and Implications for Galactic Outflows
• 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
• H-alpha Observations of a Large Sample of Galaxies at z~2: Implications for Star Formation in High Redshift Galaxies
• Bimodal gas accretion in the Horizon-MareNostrum galaxy formation simulation
• Evolution of the Intergalactic Opacity: Implications for the Ionizing Background, Cosmic Star Formation, and Quasar Activity
• GOODS-Herschel Measurements of the Dust Attenuation of Typical Star-Forming Galaxies at High Redshift: Observations of UV-Selected Galaxies at z~2
• A Model for Star Formation, Gas Flows and Chemical Evolution in Galaxies at High Redshifts
• An HST/WFC3-IR Morphological Survey of Galaxies at z = 1.5-3.6: I. Survey Description and Morphological Properties of Star Forming Galaxies
• Seeding the formation of cold gaseous clouds in Milky Way size halos
• A downturn in intergalactic CIV as redshift 6 is approached
• Constraints on the Universal CIV Mass Density at z~6 from Early IR Spectra Obtained with the Magellan FIRE Spectrograph
• Intergalactic CIV absorption at redshifts 5.4 to 6
• The Varied Fates of z~2 Star-forming Galaxies
• The enrichment history of cosmic metals
• The Carbon Content of Intergalactic Gas at z=4.25 and its Evolution Toward z=2.4

Cited by in corpus (260)

• Physical Models of Galaxy Formation in a Cosmological Framework
• The Circumgalactic Medium
• Gusty, gaseous flows of FIRE: galactic winds in cosmological simulations with explicit stellar feedback
• Strong Nebular Line Ratios in the Spectra of z~2-3 Star-forming Galaxies: First Results from KBSS-MOSFIRE
• The COS-Halos Survey: Physical Conditions and Baryonic Mass in the Low-Redshift Circumgalactic Medium
• Cool Outflows in Galaxies and their Implications
• The COS-Halos Survey: Rationale, Design, and A Census of Circumgalactic Neutral Hydrogen
• The COS-Halos Survey: An Empirical Description of the Metal-Line Absorption in the Low-Redshift Circumgalactic Medium
• Evidence for Ubiquitous Collimated Galactic-Scale Outflows along the Star-Forming Sequence at z~0.5
• The Keck Lyman Continuum Spectroscopic Survey (KLCS): The Emergent Ionizing Spectrum of Galaxies at $z\sim 3$
• Nebular Emission Line Ratios in z~2-3 Star-Forming Galaxies with KBSS-MOSFIRE: Exploring the Impact of Ionization, Excitation, and Nitrogen-to-Oxygen Ratio
• A Characteristic Scale for Cold Gas
• Magnetized Gas Clouds can Survive Acceleration by a Hot Wind
• An Origin for Multi-Phase Gas in Galactic Winds and Halos
• The circumgalactic medium of massive galaxies at z~3: a test for stellar feedback, galactic outflows, and cold streams
• Bimodality of low-redshift circumgalactic O VI in non-equilibrium EAGLE zoom simulations
• The Impact of Enhanced Halo Resolution on the Simulated Circumgalactic Medium
• Baryons in the CosmicWeb of IllustrisTNG - I: Gas in Knots, Filaments, Sheets and Voids
• The Origins of the Circumgalactic Medium in the FIRE Simulations
• The Lyman-$\alpha$ forest in optically-thin hydrodynamical simulations
• Galaxy assembly, stellar feedback and metal enrichment: the view from the GAEA model
• The Impact of Star Formation Feedback on the Circumgalactic Medium
• Metal-line absorption around $z\approx$2.4 star-forming galaxies in the Keck Baryonic Structure Survey
• Tracing Inflows and Outflows with Absorption Lines in Circumgalactic Gas
• The Spectroscopic Properties of Lyα-Emitters at z $\approx$ 2.7: Escaping Gas and Photons from Faint Galaxies
• Neutral hydrogen in galaxy halos at the peak of the cosmic star formation history
• Q1549-C25: A Clean Source of Lyman-Continuum Emission at $z=3.15$
• MAGIICAT II. General Characteristics of the MgII Absorbing Circumgalactic Medium
• Nearly all the sky is covered by Lyman-alpha emission around high redshift galaxies
• Quasars Probing Quasars VI. Excess HI Absorption Within One Proper Mpc of z~2 Quasars
• The distribution of neutral hydrogen around high-redshift galaxies and quasars in the EAGLE simulation
• Mining Circumgalactic Baryons in the Low-Redshift Universe
• Diffuse Lyman Alpha Haloes around Lyman Alpha Emitters at z=3: Do Dark Matter Distributions Determine the Lyman Alpha Spatial Extents?
• The evolution of metallicity and metallicity gradients from z=2.7-0.6 with KMOS3D
• The FMOS-COSMOS survey of star-forming galaxies at z~1.6. IV: Excitation state and chemical enrichment of the interstellar medium
• Measuring the Physical Conditions in High-Redshift Star-Forming Galaxies: Insights from KBSS-MOSFIRE
• The Role of Cosmic Ray Transport in Shaping the Simulated Circumgalactic Medium
• Zooming in on accretion - II. Cold Circumgalactic Gas Simulated with a super-Lagrangian Refinement Scheme
• The Column Density Distribution and Continuum Opacity of the Intergalactic and Circumgalactic Medium at Redshift <z>=2.4
• Metal-enriched, sub-kiloparsec gas clumps in the circumgalactic medium of a faint z = 2.5 galaxy
• Line Transfer through Clumpy, Large-Scale Outflows: Lyman Alpha Absorption and Halos around Starforming Galaxies
• The Epoch of Reionization
• Quasars Probing Quasars VII. The Pinnacle of the Cool Circumgalactic Medium Surrounds Massive z~2 Galaxies
• Extended Hot Halos Around Isolated Galaxies Observed in the ROSAT All-Sky Survey
• Galactic and Circumgalactic OVI and its Impact on the Cosmological Metal and Baryon Budgets at 2<z<3.5
• Zooming in on accretion - I. The structure of halo gas
• A Universal Density Structure for Circum-Galactic Gas
• Inspiraling Halo Accretion Mapped in Lyman-$\alpha$ Emission around a $z\sim 3$ Quasar
• The Column Density, Kinematics, and Thermal State of Metal-Bearing Gas within the Virial Radius of z~2 Star-Forming Galaxies in the Keck Baryonic Structure Survey
• XQ-100: A legacy survey of one hundred 3.5 < z < 4.5 quasars observed with VLT/XSHOOTER
• The Impact of Galactic Feedback on the Circumgalactic Medium
• A Stellar Feedback Origin for Neutral Hydrogen in High-Redshift Quasar-Mass Halos
• Dissecting the properties of optically-thick hydrogen at the peak of cosmic star formation history
• Predictions for the relation between strong HI absorbers and galaxies at redshift 3
• The impact of stars stripped in binaries on the integrated spectra of stellar populations
• The physical properties of z>2 Lyman limit systems: new constraints for feedback and accretion models
• A consistent determination of the temperature of the intergalactic medium at redshift z=2.4
• The Temperature-Density Relation in the Intergalactic Medium at Redshift <z>=2.4
• Trident: a universal tool for generating synthetic absorption spectra from astrophysical simulations
• A Substantial Mass of Cool, Metal-Enriched Gas Surrounding the Progenitors of Modern-Day Ellipticals
• The Rest-Frame Optical Spectroscopic Properties of Ly$\alpha$-Emitters at $z\sim 2.5$: The Physical Origins of Strong Ly$\alpha$ Emission
• MAGIICAT V. Orientation of Outflows and Accretion Determine the Kinematics and Column Densities of the Circumgalactic Medium
• A halo model for cosmological neutral hydrogen: abundances and clustering
• Dust Attenuation, Star Formation, and Metallicity in z ~ 2-3 Galaxies from KBSS-MOSFIRE
• Neutral hydrogen optical depth near star-forming galaxies at z~2.4 in the Keck Baryonic Structure Survey
• MUSE searches for galaxies near very metal-poor gas clouds at z~3: new constraints for cold accretion models
• MApping the Most Massive Overdensities Through Hydrogen (MAMMOTH) I: Methodology
• The Fates of the Circumgalactic Medium in the FIRE Simulations
• Deep HeII and CIV Spectroscopy of a Giant Lyman alpha Nebula: Dense Compact Gas Clumps in the Circumgalactic Medium of a z~2 Quasar
• A New Measurement of the Temperature Density Relation of the IGM From Voigt Profile Fitting
• Column Density Profiles of Multi-Phase Gaseous Halos
• MUSE Analysis of Gas around Galaxies (MAGG) -- III: The gas and galaxy environment of z = 3-4.5 quasars
• MAGIICAT III. Interpreting Self-Similarity of the Circumgalactic Medium with Virial Mass using MgII Absorption
• Feedback in low-mass galaxies in the early Universe
• A comparison of observed and simulated absorption from HI, CIV, and SiIV around $z\approx 2$ star-forming galaxies suggests redshift-space distortions are due to inflows
• Confronting Simulations of Optically Thick Gas in Massive Halos with Observations at z=2-3
• Quasars Probing Quasars VIII. The Physical Properties of the Cool Circumgalactic Medium Surrounding z ~ 2-3 Massive Galaxies Hosting Quasars
• Multi-phase Circum-Galactic Medium probed with MUSE and ALMA
• The Cosmic Ultraviolet Baryon Survey (CUBS) I. Overview and the diverse environments of Lyman limit systems at z<1
• The Role of Galaxies and AGN in Reionising the IGM - I: Keck Spectroscopy of 5 < z < 7 Galaxies in the QSO Field J1148+5251
• Metal-Poor, Cool Gas in the Circumgalactic Medium of a z = 2.4 Star-Forming Galaxy: Direct Evidence for Cold Accretion?
• The Keck Baryonic Structure Survey: Using foreground/background galaxy pairs to trace the structure and kinematics of circumgalactic neutral hydrogen at $z\sim 2$
• Probing the Circumgalactic Medium at High-Redshift Using Composite BOSS Spectra of Strong Lyman-alpha Forest Absorbers
• The redshift evolution of rest-UV spectroscopic properties in Lyman Break Galaxies at z ~ 2-4
• NIHAO VIII: Circum-galactic medium and outflows - The puzzles of HI and OVI gas distributions
• The Second Data Release of the KODIAQ Survey
• Characterizing Circumgalactic Gas around Massive Ellipticals at z ~ 0.4 I. Initial Results
• Towards a Unified Description of the Intergalactic Medium at Redshift z~2.5
• The Mass-Metallicity Relation Of A Z~2 Protocluster With MOSFIRE
• Where Do Galaxies End?
• Dissecting the Gaseous Halos of z~2 Damped Ly$\alpha$ Systems with Close Quasar Pairs
• Three Lyman-alpha emitting galaxies within a quasar proximity zone at z=5.8
• Heavy Element Absorption Systems at $5.0<z<6.8$: Metal-Poor Neutral Gas and a Diminishing Signature of Highly Ionized Circumgalactic Matter
• The Stacked Lyman-Alpha Emission Profile from the Circum-Galactic Medium of z~2 Quasars
• CGM${}^2$ I: The Extent of the Circumgalactic Medium Traced by Neutral Hydrogen
• MUSE Analysis of Gas around Galaxies (MAGG) -- I: Survey design and the environment of a near pristine gas cloud at z~3.5
• The MUSE Ultra Deep Field (MUDF). II. Survey design and the gaseous properties of galaxy groups at 0.5 < z < 1.5
• MAGIICAT VI. The MgII Intragroup Medium is Kinematically Complex
• On the contribution of fluorescence to Ly$\alpha$ halos (LAHs) around star forming galaxies
• Resolving shocks and filaments in galaxy formation simulations: effects on gas properties and star formation in the circumgalactic medium
• Probing the intra-group medium of a z = 0.28 galaxy group
• On the connection between the intergalactic medium and galaxies: The HI-galaxy cross-correlation at z < 1
• Relationship between the Metallicity of the Circumgalactic Medium and Galaxy Orientation
• A SINFONI Integral Field Spectroscopy Survey for Galaxy Counterparts to Damped Lyman-alpha Systems - VI. Metallicity and Geometry as Gas Flow Probes
• The physical nature of the cosmic accretion of baryons and dark matter into halos and their galaxies
• On the origin of excess cool gas in quasar host halos
• Constraints on Hyperluminous QSO Lifetimes via Fluorescent Lya Emitters at Z~2.7
• Chemical abundance scaling relations for multiple elements in z~2-3 star-forming galaxies
• The Kinematics of Extended Lyman-alpha Emission in a Low Mass, Low Metallicity Galaxy at z = 2.3
• Protocluster Discovery in Tomographic Ly$\alpha$ Forest Flux Maps
• Metal-enriched halo gas across galaxy overdensities over the last 10 billion years
• The evolution of HI and CIV quasar absorption line systems at 1.9 < z < 3.2
• How Gas Accretion Feeds Galactic Disks
• The Keck+Magellan Survey for Lyman Limit Absorption III: Sample Definition and Column Density Measurements
• MUSE Analysis of Gas around Galaxies (MAGG) -- IV: The gaseous environment of $z\sim$ 3-4 Lyman-alpha emitting galaxies
• The VANDELS survey: a measurement of the average Lyman-continuum escape fraction of star-forming galaxies at z=3.5
• Herschel protocluster survey: A search for dusty star-forming galaxies in protoclusters at z=2-3
• A Deep Narrowband Imaging Search for CIV and He II Emission from Ly$\alpha$ Blobs
• Lyman-Alpha Emitting Galaxies as a Probe of Reionization: Large-Scale Bubble Morphology and Small-Scale Absorbers
• Figuring Out Gas & Galaxies in Enzo (FOGGIE). II. Emission from the z=3 Circumgalactic Medium
• Detection of hot, metal-enriched outflowing gas around $z\approx$2.3 star-forming galaxies in the Keck Baryonic Structure Survey
• Fast Winds Drive Slow Shells: A Model for the Circumgalactic Medium as Galactic Wind-Driven Bubbles
• Turbulent density and pressure fluctuations in the stratified intracluster medium
• Properties of the Simulated Circumgalactic Medium
• Searching for z > 6.5 Analogs Near the Peak of Cosmic Star Formation
• Metals in the z~3 intergalactic medium: results from an ultra-high signal-to-noise ratio UVES quasar spectrum
• The Redshift Evolution of Rest-UV Spectroscopic Properties to z~5
• Dark Galaxy Candidates at Redshift ~3.5 Detected with MUSE
• Two sub-millimetre bright protoclusters bounding the epoch of peak star-formation activity
• The KBSS-KCWI Survey: The connection between extended Ly$\alpha$ halos and galaxy azimuthal angle at $z\sim 2-3$
• The High-Ion Content and Kinematics of Low-Redshift Lyman Limit Systems
• An absorption-selected survey of neutral gas in the Milky Way halo
• Predicting Ly$\alpha$ Emission from Galaxies via Empirical Markers of Production and Escape in the KBSS
• Radio wave scattering by circumgalactic cool gas clumps
• MUSEQuBES: Characterizing the circumgalactic medium of redshift $\approx 3.3$ Ly$\alpha$ emitters
• The Impact of the Group Environment on the OVI Circumgalactic Medium
• Observations of metals in the $z\approx 3.5$ intergalactic medium and comparison to the EAGLE simulations
• The MUSE eXtremely Deep Field: Individual detections of Lyα haloes around rest-frame UV-selected galaxies at z~2.9-4.4
• Dust in the Wind: Composition and Kinematics of Galaxy Outflows at the Peak Epoch of Star Formation
• A measurement of galaxy halo mass from the surrounding HI Lyα absorption
• A Galaxy Redshift Survey near HST/COS AGN Sight Lines
• Metal line emission from galaxy haloes at z~1
• A Comparison of Circumgalactic MgII Absorption between the TNG50 Simulation and the MEGAFLOW Survey
• Halo Mass Dependence of HI and OVI Absorption: Evidence for Differential Kinematics
• The circumgalactic medium of high redshift galaxies
• Environmental Dependence of Galactic Properties Traced by Ly$\alpha$ Forest Absorption: Diversity among Galaxy Populations
• Osaka Feedback Model II: Modeling Supernova Feedback Based on High-Resolution Simulations
• Kinematics of the Circumgalactic Medium of a $z=0.77$ Galaxy from MgII Tomography
• MusE GAs FLOw and Wind (MEGAFLOW) V. The dust/metallicity-anisotropy of the Circum-Galactic Medium
• The connection between the escape of ionizing radiation and galaxy properties at z~3 in the Keck Lyman Continuum Spectroscopic Survey
• Lyman Alpha and MgII as Probes of Galaxies and their Environments
• Cool circumgalactic gas of passive galaxies from cosmological inflow
• Large Scale Structure in Absorption: Gas within and around Galaxy Voids
• The Cosmic Ultraviolet Baryon Survey (CUBS) IV: The Complex Multiphase Circumgalactic Medium as Revealed by Partial Lyman Limit Systems
• Figuring Out Gas & Galaxies In Enzo (FOGGIE) VI: The Circumgalactic Medium of $L^{\ast }$ Galaxies is Supported in an Emergent, Non-Hydrostatic Equilibrium
• The dispersion measure and scattering of FRBs: Contributions from the intergalactic medium, foreground halos, and hosts
• The Circumgalactic Medium of Extreme Emission Line Galaxies at z ~ 2: Resolved Spectroscopy and Radiative Transfer Modeling of Spatially Extended Lyman-alpha Emission in the KBSS-KCWI Survey
• CECILIA: The Faint Emission Line Spectrum of z~2-3 Star-forming Galaxies
• The Effect of Fluctuations on the Helium-Ionizing Background
• MUSE Analysis of Gas around Galaxies (MAGG) -- V: Linking ionized gas traced by CIV and SiIV absorbers to Ly$\alpha$ emitting galaxies at $z\approx 3.0-4.5$
• The case against large intensity fluctuations in the z ~ 2.5 HeII Lyman-alpha forest
• The Cosmic Ultraviolet Baryon Survey (CUBS) VI: Connecting Physical Properties of the Cool Circumgalactic Medium to Galaxies at $z\approx 1$
• The CGM at Cosmic Noon with KCWI: Outflows from a Star-forming Galaxy at z=2.071
• Simba: The average properties of the circumgalactic medium of $2\le z\le 3$ quasars are determined primarily by stellar feedback
• Cool circumgalactic gas in galaxy clusters: connecting the DESI legacy imaging survey and SDSS DR16 MgII absorbers
• The VLT LBG Redshift Survey - VI. Mapping HI in the proximity of $z\sim 3$ LBGs with X-Shooter
• Project AMIGA: A Minimal Covering Factor for Optically Thick Circumgalactic Gas Around the Andromeda Galaxy
• A Unique View of AGN-Driven Molecular Outflows: The Discovery of a Massive Galaxy Counterpart to a $z=2.4$ High-Metallicity Damped Lyman-$\alpha$ Absorber
• Statistical correlation between the distribution of Ly$\alpha$ emitters and IGM HI at $z\sim 2.2$ mapped by Subaru/Hyper Suprime-Cam
• The mean free path of hydrogen ionizing photons during the epoch of reionization
• A Fundamental Test for Galaxy Formation Models: Matching the Lyman-$\alpha$ Absorption Profiles of Galactic Halos over Three Decades in Distance
• The Impact of Cosmic Rays on the Kinematics of the Circumgalactic Medium
• Gauging Metallicity of Diffuse Gas Under An Uncertain Ionizing Radiation Field
• Clumpiness of Observed and Simulated Cold Circumgalactic Gas
• A Complex Multiphase DLA Associated with a Compact Group at z=2.431 Traces Accretion, Outflows, and Tidal Streams
• Figuring Out Gas & Galaxies In Enzo (FOGGIE) V: The Virial Temperature Does Not Describe Gas in a Virialized Galaxy Halo
• Cosmic Galaxy-IGM HI Relation at $z\sim 2-3$ Probed in the COSMOS/UltraVISTA $1.6$ deg${}^2$ Field
• The VLT LBG Redshift Survey - IV. Gas and galaxies at z ~ 3 in observations and simulations
• A high baryon fraction in massive haloes at z~3
• Gas around galaxy haloes - II: hydrogen absorption signatures from the environments of galaxies at redshifts 2 < z < 3
• The Bimodal Absorption System Imaging Campaign (BASIC) I. A Dual Population of Low-metallicity Absorbers at z $<1$
• The Cosmic Dispersion Measure in the EAGLE Simulations
• A new model framework for circumgalactic Ly$\alpha$ radiative transfer constrained by galaxy-Ly$\alpha$ forest clustering
• MUSE-ALMA Halos VI: Coupling Atomic, Ionised & Molecular Gas Kinematics of Galaxies
• Gas Accretion in Star-Forming Galaxies
• Where Outflows Meet Inflows: Gas Kinematics in SSA22 Lyman-$\alpha$ Blob 2 Decoded by Advanced Radiative Transfer Modelling
• The morphology and kinematics of neutral hydrogen in the vicinity of z=0 galaxies with Milky Way masses -- a study with the Illustris simulation
• The Anatomy of a Turbulent Radiative Mixing Layer: Insights from an Analytic Model with Turbulent Conduction and Viscosity
• Warm-hot gas in groups and galaxies toward H2356-309
• Strongly Time-Variable Ultra-Violet Metal Line Emission from the Circum-Galactic Medium of High-Redshift Galaxies
• The Impacts of Modeling Choices on the Inference of the Circumgalactic Medium Properties from Sunyaev-Zeldovich Observations
• MUSEQuBES: The relation between Ly$\alpha$ emitters and C IV absorbers at $z\approx 3.3$
• Constraining the cosmic UV background at z>3 with MUSE Lyman-α emission observations
• A Long Stream of Metal-Poor Cool Gas around a Massive Starburst Galaxy at z = 2.67
• Constraints on the $z\sim 6-13$ intergalactic medium from JWST spectroscopy of Lyman-alpha damping wings in galaxies
• FIREBall-2: The Faint Intergalactic Medium Redshifted Emission Balloon Telescope
• The Lyman Alpha Spectral Database (LASD)
• 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
• Imaging Spectroscopy of Ionized Gaseous Nebulae around Optically Faint AGN at Redshift z ~ 2
• Evidence for galaxy quenching in the green valley caused by a lack of a circumgalactic medium
• The Flatness and Sudden Evolution of the Intergalactic Ionizing Background
• The Circumgalactic Medium of Submillimeter Galaxies. I. First Results from a Radio-Identified Sample
• ELUCID VII: Using Constrained Hydro Simulations to Explore the Gas Component of the Cosmic Web
• Tentative Detection of the Circumgalactic Medium of the Isolated Low-Mass Dwarf Galaxy WLM
• Metal Enrichment in the Reionization Epoch
• A millimeter-wave redshift search for the unlensed HyLIRG, HS1700.850.1
• A ~6 Mpc overdensity at z = 2.7 detected along a pair of quasar sight lines: filament or protocluster?
• Modeling Photoionized Turbulent Material in the Circumgalactic Medium
• Numerical Simulations of a Shock-Filament Interaction
• Gas around galaxy haloes: methodology comparisons using hydrodynamical simulations of the intergalactic medium
• VLT/UVES observations of peculiar alpha abundances in a sub-DLA at z ~ 1.8 towards the quasar B1101-26
• Modeling Photoionized Turbulent Material in the Circumgalactic Medium II: Effect of Turbulence within a Stratified Medium
• The Physical Nature of Circumgalactic Medium Absorbers in Simba
• Metal content of the circumgalactic medium around star-forming galaxies at z $\sim$ 2.6 as revealed by the VIMOS Ultra-Deep Survey
• The Circumgalactic Medium in Massive Halos
• Probing IGM accretion onto faint Lyα emitters at z~2.8
• The circumgalactic medium in Lyman-alpha: a new constraint on galactic outflow models
• The SCUBA-2 Web Survey: I. Observations of CO(3-2) in hyper-luminous QSO fields
• UV & Ly$\alpha$ halos of Ly$\alpha$ emitters across environments at z=2.84
• Resolving the Internal Structure of Circum-Galactic Medium using Gravitationally Lensed Quasars
• The Grism Lens-Amplified Survey from Space (GLASS). XIII. G800L optical spectra from the parallel fields
• Probing Large Galaxy Halos at $z\sim 0$ with Automated $\mathrm{Ly}\alpha$-Absorption Matching
• Probing Large-scale UV Background Inhomogeneity Associated with Quasars using Metal Absorption
• A partial Lyman limit system tracing intragroup gas at $z\approx 0.8$ towards HE1003+0149
• Investigating the Physics and Environment of Lyman Limit Systems in Cosmological Simulations
• Observational Diagnostics of Gas Flows: Insights from Cosmological Simulations
• Connection Between Galaxies and HI in the Circumgalactic and Intergalactic Media: Variation According to Galaxy Stellar Mass and Star-formation Activity
• Reconciling the Results of the z~2 MOSDEF and KBSS-MOSFIRE Surveys
• Modeling Photoionized Turbulent Material in the Circumgalactic Medium III: Effects of Co-rotation and Magnetic Fields
• Observations of Ly$\alpha$ Emitters at High Redshift
• Low Mass Group Environments have no Substantial Impact on the Circumgalactic Medium Metallicity
• Spatially Resolved Circumgalactic Medium around a Star-Forming Galaxy Driving a Galactic Outflow at $z\approx 0.8$
• The Dwarf Galaxy Population at $z\sim 0.7$: A Catalog of Emission Lines and Redshifts from Deep Keck Observations
• A public grid of radiative transfer simulations for Lyman-alpha and metal lines in idealised galactic outflows
• MUSE Analysis of Gas around Galaxies (MAGG) -- VI. The cool and enriched gas environment of z$\gtrsim$3 Ly$\alpha$ emitters
• Pair Lines of Sight Observations of Multiphase Gas Bearing O VI in a Galaxy Environment
• A High Signal-to-Noise HST Spectrum Toward J1009+0713: Precise Absorption Measurements in the CGM of Two Galaxies
• On the Metallicities and Kinematics of the Circumgalactic Media of Damped Ly$\alpha$ Systems at $z\sim 2.5$
• KBSS-InCLOSE I: Design and First Results from the Inner CGM of QSO Line Of Sight Emitting Galaxies at z~2-3
• The nebular properties of star-forming galaxies at intermediate redshift from the Large Early Galaxy Astrophysics Census
• Active Galactic Nuclei in the Green Valley at z$\sim$0.7
• Circumgalactic Ly$\alpha$ Nebulae in Overdense Quasar Pair Regions Observed with the Palomar Cosmic Web Imager
• The Neon Gap: Probing Ionization with Dwarf Galaxies at z~1
• Resolving a merger in a hyper-luminous submillimeter galaxy at z=2.82
• Harvesting the Lyα forest with convolutional neural networks
• Constraining blazar heating with the 2<z<3 Lyman-$\alpha$ forest
• LATIS: Comparing Galaxy and IGM Tomography Maps as Tracers of Large-scale Structure and Protoclusters at $z\sim 2.5$
• Neutral hydrogen in the post-reionization universe
• CECILIA: Ultra-Deep Rest-Optical Spectra of Faint Galaxies at Cosmic Noon
• Cosmological-Scale Lyman-alpha Forest Absorption Around Galaxies and AGN Probed with the HETDEX and SDSS Spectroscopic Data
• The Circumgalactic Medium from the CAMELS Simulations: Forecasting Constraints on Feedback Processes from Future Sunyaev-Zeldovich Observations
• GRBs as Probes of the IGM
• Identifying Circumgalactic Medium Absorption in QSO Spectra: A Bayesian Approach
• Constraining cosmic ray transport models using circumgalactic medium properties and observables
• DESI Mg II Absorbers: Extinction Characteristics & Quasar Redshift Accuracy
• FEASTS and MHONGOOSE: HI Column Density Distribution at $z=0$ for $N_{\mathrm{HI}}>10^{17.8}{\mathrm{cm}}^{-2}$
• The Thermodynamic and Kinematic Evolution of Circumgalactic Gas around $z=1$ in the IllustrisTNG model
• The stellar population of a $z\sim 3.25$ Ly$\alpha$ emitting group associated with a damped Ly$\alpha$ absorber
• MUSE Analysis of Gas around Galaxies (MAGG) -- VII. Emission line galaxies near strong blended Ly$\alpha$ absorption systems at $z\gtrsim 3$
• Intergalactic Medium Tomography with the Sunburst Arc