Extended Lyman alpha haloes around individual high-redshift galaxies revealed by MUSE

Abstract

We report the detection of extended Ly alpha emission around individual star-forming galaxies at redshifts z = 3-6 in an ultradeep exposure of the Hubble Deep Field South obtained with MUSE on the ESO-VLT. The data reach a limiting surface brightness (1sigma) of ~1 x 10^-19 erg s^-1 cm^-2 arcsec^-2 in azimuthally averaged radial profiles, an order of magnitude improvement over previous narrowband imaging. Our sample consists of 26 spectroscopically confirmed Ly alpha-emitting, but mostly continuum-faint (m_AB >~ 27) galaxies. In most objects the Ly alpha emission is considerably more extended than the UV continuum light. While 5 of the faintest galaxies in the sample show no significantly detected Ly alpha haloes, the derived upper limits suggest that this is just due to insufficient S/N. Ly alpha haloes therefore appear to be (nearly) ubiquitous even for low-mass (~10^8-10^9 M_sun) star-forming galaxies at z>3. We decompose the Ly alpha emission of each object into a compact `continuum-like' and an extended halo component, and infer sizes and luminosities of the haloes. The extended Ly alpha emission approximately follows an exponential surface brightness distribution with a scale length of a few kpc. While these haloes are thus quite modest in terms of their absolute sizes, they are larger by a factor of 5-15 than the corresponding rest-frame UV continuum sources as seen by HST. They are also much more extended, by a factor ~5, than Ly alpha haloes around low-redshift star-forming galaxies. Between ~40% and >90% of the observed Ly alpha flux comes from the extended halo component, with no obvious correlation of this fraction with either the absolute or the relative size of the Ly alpha halo. Our observations provide direct insights into the spatial distribution of at least partly neutral gas residing in the circumgalactic medium of low to intermediate mass galaxies at z > 3.

accepted by Astronomy & Astrophysics

References in corpus (19)

• The Relation Between SFR and Stellar Mass for Galaxies at 3.5 $\le z\le$ 6.5 in CANDELS
• Lyman Alpha Emitting Galaxies as a Probe of Reionization
• A Population of Faint Extended Line Emitters and the Host Galaxies of Optically Thick QSO Absorption Systems
• The MUSE 3D view of the Hubble Deep Field South
• Metal-line absorption around $z\approx$2.4 star-forming galaxies in the Keck Baryonic Structure Survey
• Diffuse Lyman-alpha Halos around Galaxies at z=2.2-6.6: Implications for Galaxy Formation and Cosmic Reionization
• The Lyman alpha Reference Sample: Extended Lyman alpha Halos Produced at Low Dust Content
• The VIMOS Ultra-Deep Survey (VUDS): fast increase of the fraction of strong Lyman alpha emitters from z=2 to z=6
• The Lyman-alpha Reference Sample: I. Survey outline and first results for Markarian 259
• Lyman alpha Resonant Scattering in Young Galaxies - Predictions from Cosmological Simulations
• A young star-forming galaxy at z = 3.5 with an extended Ly\,$\alpha$ halo seen with MUSE
• The influence of diffuse scattered light I. The PSF and its role to observations of the edge-on galaxy NGC 5907
• Deficiency of large equivalent width Lyman-alpha emission in luminous Lyman break galaxies at z~5-6?
• Resolved Spectroscopy of a Gravitationally Lensed L* Lyman-break Galaxy at z~5
• The physical properties of Lyalpha emitting galaxies: not just primeval galaxies?
• The UV, Lyman-alpha, and dark matter halo properties of high redshift galaxies
• On the Diffuse Lyman-alpha Halo Around Lyman-alpha Emitting Galaxies
• The Lyman alpha reference sample: IV. Morphology at low and high redshift
• Where is the fuzz? Undetected Lyman alpha nebulae around QSOs at z~2.3

Cited by in corpus (217)

• Cool Outflows in Galaxies and their Implications
• JADES NIRSpec Spectroscopy of GN-z11: Lyman-$\alpha$ emission and possible enhanced nitrogen abundance in a $z=10.60$ luminous galaxy
• The Data Processing Pipeline for the MUSE Instrument
• The MUSE Hubble Ultra Deep Field Survey: I. Survey description, data reduction and source detection
• The Keck Lyman Continuum Spectroscopic Survey (KLCS): The Emergent Ionizing Spectrum of Galaxies at $z\sim 3$
• Ubiquitous giant Ly $\alpha$ nebulae around the brightest quasars at $z\sim 3.5$ revealed with MUSE
• Inferences on the Timeline of Reionization at z~8 From the KMOS Lens-Amplified Spectroscopic Survey
• Relativistic jet feedback in high-redshift galaxies I: Dynamics
• Observations of the Lyman-$\alpha$ Universe
• Constraining the neutral fraction of hydrogen in the IGM at redshift 7.5
• The Low-Redshift Lyman Continuum Survey I: New, Diverse Local Lyman-Continuum Emitters
• The MUSE Hubble Ultra Deep Field Survey: II. Spectroscopic redshifts and comparisons to color selections of high-redshift galaxies
• QSO MUSEUM I: A sample of 61 extended Ly$\alpha$-emission nebulae surrounding $z\sim 3$ quasars
• How cold gas continuously entrains mass and momentum from a hot wind
• Nearly all the sky is covered by Lyman-alpha emission around high redshift galaxies
• The ALPINE-ALMA [CII] Survey: Size of Individual Star-Forming Galaxies at z=4-6 and their Extended Halo Structure
• An Atlas of MUSE Observations towards Twelve Massive Lensing Clusters
• The MUSE-Wide Survey: Survey Description and First Data Release
• Slicing COSMOS with SC4K: the evolution of typical Lya emitters and the Lya escape fraction from z~2 to z~6
• Feedback by Massive Black Holes in Dwarf Galaxies
• The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections
• The MUSE Hubble Ultra Deep Field surveys: Data release II
• Evolution of the Cool Gas in the Circumgalactic Medium (CGM) of Massive Halos -- A Keck Cosmic Web Imager (KCWI) Survey of Ly$\alpha$ Emission around QSOs at $z\approx 2$
• The origin of the escape of Lyman alpha and ionizing photons in Lyman Continuum Emitters
• Consensus report on 25 years of searches for damped Ly$\alpha$ galaxies in emission: Confirming their metallicity-luminosity relation at $z\gtrsim 2$
• The Lyman-alpha luminosity function at z=5.7-6.6 and the steep drop of the faint end: implications for reionization
• The REQUIEM Survey I: A Search for Extended Ly-Alpha Nebular Emission Around 31 z>5.7 Quasars
• The CALYMHA survey: Lya luminosity function and global escape fraction of Lya photons at z=2.23
• The MUSE-Wide Survey: A first catalogue of 831 emission line galaxies
• Survival and mass growth of cold gas in a turbulent, multiphase medium
• The physics of multiphase gas flows: fragmentation of a radiatively cooling gas cloud in a hot wind
• The MUSE Hubble Ultra Deep Field Survey VI: The Faint-End of the Lya Luminosity Function at 2.91 < z < 6.64 and Implications for Reionisation
• Large turbulent reservoirs of cold molecular gas around high-redshift starburst galaxies
• Ly$\alpha$ Spectra from Multiphase Outflows, and their Connection to Shell Models
• Optically-Thin Spatially-Resolved Mg II Emission Maps the Escape of Ionizing Photons
• Diverse properties of Ly-alpha emission in low-redshift compact star-forming galaxies with extremely high [OIII]/[OII] ratios
• The MUSE Hubble Ultra Deep Field Survey XIII. Spatially resolved spectral properties of Lyman alpha haloes around star-forming galaxies at z > 3
• A Close Relationship between Lyman Alpha and Mg II in Green Pea Galaxies
• Spectroscopic properties of luminous Lyman-α emitters at $z\approx 6-7$ and comparison to the Lyman-break population
• A VLT/FORS2 view at $z\sim 6$: Lyman-$\alpha$ emitter fraction and galaxy physical properties at the edge of the epoch of cosmic reionization
• The Aurora radiation-hydrodynamical simulations of reionization: calibration and first results
• The Mean Ultraviolet Spectrum of a Representative Sample of Faint z~3 Lyman Alpha Emitters
• The MUSE Hubble Ultra Deep Field Survey X. Ly$\alpha$ Equivalent Widths at $2.9<z<6.6$
• Puzzling Lyman-alpha line profiles in green pea galaxies
• MUSE Analysis of Gas around Galaxies (MAGG) -- III: The gas and galaxy environment of z = 3-4.5 quasars
• The MUSE Extremely Deep Field: the Cosmic Web in Emission at High Redshift
• Is Multiphase Gas Cloudy or Misty?
• Multi-phase Circum-Galactic Medium probed with MUSE and ALMA
• The Keck Baryonic Structure Survey: Using foreground/background galaxy pairs to trace the structure and kinematics of circumgalactic neutral hydrogen at $z\sim 2$
• RASCAS: RAdiation SCattering in Astrophysical Simulations
• The MUSE-Wide Survey: A determination of the Lyman $\alpha$ emitter luminosity function at $3<z<6$
• MUSEQuBES: Calibrating the redshifts of Ly α emitters using stacked circumgalactic medium absorption profiles
• LAGER Ly$\alpha$ Luminosity Function at $z\sim 7$, Implications for Reionization
• MusE GAs FLOw and Wind (MEGAFLOW) VIII. Discovery of a MgII emission halo probed by a quasar sightline
• A Comprehensive Study of Ly$\alpha$ Emission in the High-redshift Galaxy Population
• Molecular gas on large circumgalactic scales at z=3.47
• LSDCat: Detection and cataloguing of emission-line sources in integral-field spectroscopy datacubes
• Morphologies of ~190,000 Galaxies at z=0-10 Revealed with HST Legacy Data. III. Continuum Profile and Size Evolution of Lya Emitters
• The physical origins and dominant emission mechanisms of Lyman-alpha halos: results from the TNG50 simulation in comparison to MUSE observations
• Nature of the Absorbing Gas associated with a Galaxy Group at z~0.4
• On the UV compactness and morphologies of typical Lyman-a emitters from z~2 to z~6
• Modeling $237$ Lyman-$\alpha$ spectra of the MUSE-Wide survey
• Probing 3D Structure with a Large MUSE Mosaic: Extending the Mass Model of Frontier Field Abell 370
• The Stacked Lyman-Alpha Emission Profile from the Circum-Galactic Medium of z~2 Quasars
• MUSE Analysis of Gas around Galaxies (MAGG) -- I: Survey design and the environment of a near pristine gas cloud at z~3.5
• Mapping the Lyman-Alpha Emission Around a z~6.6 QSO with MUSE: Extended Emission and a Companion at Close Separation
• Outflows and extended [CII] halos in high redshift galaxies
• The Grism Lens-Amplified Survey from Space (GLASS). XI. Detection of CIV in Multiple Images of $z=6.11$ Ly$\alpha$ Emitter Behind RXCJ2248.7-4431
• Lyman-$\alpha$ as a tracer of cosmic reionisation in the SPHINX radiation-hydrodynamics cosmological simulation
• MUSE Deep-Fields: The Lya Luminosity Function in the Hubble Deep Field South at 2.91 < z < 6.64
• Illuminating gas in-/outflows in the MUSE deepest fields: discovery of Ly-alpha nebulae around forming galaxies at z~3.3
• Witnessing galaxy assembly in an extended z~3 structure
• The Kinematics of Extended Lyman-alpha Emission in a Low Mass, Low Metallicity Galaxy at z = 2.3
• The Diversity of Diffuse Ly$\alpha$ Nebulae around Star-Forming Galaxies at High Redshift
• Simulating the diversity of shapes of the Lyman-$\alpha$ line
• The FLASHES Survey I: Integral Field Spectroscopy of the CGM around 48 $z=2.3-3.1$ QSOs
• The UV and Ly$\alpha$ Luminosity Functions of galaxies and the Star Formation Rate Density at the end of HI reionization from the VIMOS Ultra-Deep Survey (VUDS)
• Figuring Out Gas & Galaxies in Enzo (FOGGIE). II. Emission from the z=3 Circumgalactic Medium
• Metal enrichment in the circumgalactic medium and Lyα haloes around quasars at z $\sim$3
• Galactic Winds with MUSE: A Direct Detection of FeII* Emission from a z = 1.29 Galaxy
• The MUSE Hubble Ultra Deep Field Survey: XII. MgII emission and absorption in star-forming galaxies
• Spectral variations of Lyman-alpha emission within strongly lensed sources observed with MUSE
• Ionised gas structure of 100 kpc in an over-dense region of the galaxy group COSMOS-Gr30 at z ~ 0.7
• The MUSE-Wide survey: A measurement of the Ly$\alpha$ emitting fraction among $z>3$ galaxies
• Equivalent widths of Lyman $\alpha$ emitters in MUSE-Wide and MUSE-Deep
• A systematic study of the escape of LyC and Ly$\alpha$ photons from star-forming, magnetized turbulent clouds
• The Magellan M2FS Spectroscopic Survey of High-$z$ Galaxies: Lyα Emitters at $z\approx 6.6$ and the Evolution of Lyα Luminosity Function over $z\approx 5.7-6.6$
• Small-scale Intensity Mapping: Extended Ly$\alpha$, H$\alpha$ and Continuum emission as a Probe of Halo Star Formation in High-redshift Galaxies
• Discovery of a faint, star-forming, multiply lensed, Lyman-alpha blob
• Dark Galaxy Candidates at Redshift ~3.5 Detected with MUSE
• The KBSS-KCWI Survey: The connection between extended Ly$\alpha$ halos and galaxy azimuthal angle at $z\sim 2-3$
• Stacking the Cosmic Web in Fluorescent Lyman alpha Emission with MUSE
• A High Space Density of Luminous Lyman Alpha Emitters at z~6.5
• Constraining Lyman-alpha spatial offsets at $3<z<5.5$ from VANDELS slit spectroscopy
• Predicting Ly$\alpha$ Emission from Galaxies via Empirical Markers of Production and Escape in the KBSS
• Faint end of the $z\sim 3-7$ luminosity function of Lyman-alpha emitters behind lensing clusters observed with MUSE
• MUSEQuBES: Characterizing the circumgalactic medium of redshift $\approx 3.3$ Ly$\alpha$ emitters
• First Results from the KMOS Lens-Amplified Spectroscopic Survey (KLASS): Kinematics of Lensed Galaxies at Cosmic Noon
• Bipolar Outflows out to 10~kpc for Massive Galaxies at Redshift $z\approx 1$
• Gas Accretion and Giant Lyman-alpha Nebulae
• Resolving on 100 pc scales the UV-continuum in Lyman-$\alpha$ emitters between redshift 2 to 3 with gravitational lensing
• Ly$\alpha$ Halos Around $z\sim 6$ Quasars
• The MUSE Hubble Ultra Deep Field Survey. XV. The mean rest-UV spectra of Ly-alpha emitters at z>3
• Revealing the Impact of Quasar Luminosity on Giant Ly$\alpha$ Nebulae
• The MUSE eXtremely Deep Field: Individual detections of Lyα haloes around rest-frame UV-selected galaxies at z~2.9-4.4
• Surface Brightness Profile of Lyman-$\alpha$ Halos out to 320 kpc in HETDEX
• The Lensed Lyman-Alpha MUSE Arcs Sample (LLAMAS) : I. Characterisation of extended Lyman-alpha haloes and spatial offsets
• MUSE observations of the lensing cluster Abell 1689
• The MUSE Hubble Ultra Deep Field Survey: III. Testing photometric redshifts to 30th magnitude
• Searching for proto-planets with MUSE
• Metal line emission from galaxy haloes at z~1
• J-PLUS: Unveiling the brightest-end of the Lyα luminosity function at 2.0<z<3.3 over 1000 deg^2
• Ly$\alpha$ and UV Sizes of Green Pea Galaxies
• Emission from the circumgalactic medium: from cosmological zoom-in simulations to multiwavelength observables
• The nature of faint radio galaxies at high redshifts
• The MUSE Extremely Deep Field: a first panoramic view of an Mg II emitting intragroup medium
• Gas flows in the circumgalactic medium around simulated high-redshift galaxies
• Morphological and Rotation Structures of Circumgalactic Mg II Gas in the EAGLE Simulation and the Dependence on Galaxy Properties
• 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
• Early Results from GLASS-JWST XXII: Rest frame UV-optical spectral properties of Lyman-alpha emitting galaxies at 3 $<$ z $<$ 6
• ORIGIN: Blind detection of faint emission line galaxies in MUSE datacubes
• MUSE Illuminates Channels for Lyman Continuum Escape in the Halo of SBS 0335-52E
• MUSE Analysis of Gas around Galaxies (MAGG) -- V: Linking ionized gas traced by CIV and SiIV absorbers to Ly$\alpha$ emitting galaxies at $z\approx 3.0-4.5$
• On the detectability of visible-wavelength line emission from the local circumgalactic and intergalactic medium
• Recovery and analysis of rest-frame UV emission lines in 2052 galaxies observed with MUSE at $1.5<z<6.4$
• Mapping UV Properties Throughout the Cosmic Horseshoe: Lessons from VLT-MUSE
• The VLT LBG Redshift Survey - VI. Mapping HI in the proximity of $z\sim 3$ LBGs with X-Shooter
• Variations of Observed Lyman-α Spectra Shapes due to the Intergalactic Absorption
• Small-scale Intensity Mapping: Extended Halos as a Probe of the Ionizing Escape Fraction and Faint Galaxy Populations during Reionization
• Unlocking the Full Potential of Extragalactic Ly$\alpha$ through Its Polarization Properties
• The VIMOS Ultra Deep Survey: The role of HI kinematics and HI column density on the escape of Lyalpha photons in star-forming galaxies at 2<z<4
• Empirical constraints on the turbulence in QSO host nebulae from velocity structure function measurements
• The Effect of Bi-conical Outflows on Ly$\alpha$ Escape From Green Peas
• Resolved Lyman-α properties of a luminous Lyman-break galaxy in a large ionised bubble at z = 6.53
• Lyman-alpha radiative transfer: Modeling spectrum and surface brightness profile of Lyman-alpha emitting galaxies at z=3-6
• The imprint of cosmic ray driven outflow on Lyman-alpha spectra
• The ALMA-CRISTAL survey. Discovery of a 15 kpc-long gas plume in a $z=4.54$ Lyman-$\alpha$ blob
• Giant Lyman-Alpha Nebulae in the Illustris Simulation
• Rest-frame UV Properties of Luminous Strong Gravitationally Lensed Ly$\alpha$ Emitters from the BELLS GALLERY Survey
• Clumpiness of Observed and Simulated Cold Circumgalactic Gas
• ZELDA: fitting Lyman-alpha line profiles using deep learning
• The Ionised- and Cool-Gas Content of The BR1202-0725 System as seen by MUSE and ALMA
• MUSE-ALMA Haloes VII: Survey Science Goals & Design, Data Processing and Final Catalogues
• 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$100 comoving kpc around and beyond the Virial-Radius Scale of Galaxy Dark Matter Halos
• A new model framework for circumgalactic Ly$\alpha$ radiative transfer constrained by galaxy-Ly$\alpha$ forest clustering
• The Bimodal Absorption System Imaging Campaign (BASIC) I. A Dual Population of Low-metallicity Absorbers at z $<1$
• The Size and Pervasiveness of Ly$\alpha$-UV Spatial Offsets in Star-Forming Galaxies at $z\sim 6$
• The cosmic web in Lyman-alpha emission
• MUSE-ALMA Halos VI: Coupling Atomic, Ionised & Molecular Gas Kinematics of Galaxies
• Sub-kiloparsec Imaging of Lyman-alpha Emission in a Low Mass, Highly Ionized, Gravitationally Lensed Galaxy at z = 1.84
• CHORUS. III. Photometric and Spectroscopic Properties of Ly$\alpha$ Blobs at $z=4.9-7.0$
• Damped Ly-alpha Absorbers in Star-forming Galaxies at z < 0.15 Detected with the Hubble Space Telescope and Implications for Galaxy Evolution
• The dominant origin of diffuse Ly$\alpha$ halos around LAEs explored by SED fitting and clustering analysis
• Mapping the "invisible" circumgalactic medium around a z $\sim$ 4.5 radio galaxy with MUSE
• Starburst galaxies
• The nature of CR7 revealed with MUSE: a young starburst powering extended Lyman-$\alpha$ emission at z=6.6
• Where Outflows Meet Inflows: Gas Kinematics in SSA22 Lyman-$\alpha$ Blob 2 Decoded by Advanced Radiative Transfer Modelling
• The HETDEX Survey: The Ly$\alpha$ Escape Fraction from 3D-HST Emission Line Galaxies at $z\sim 2$
• ALMA and MUSE observations reveal a quiescent multi-phase circumgalactic medium around the z~3.6 radio galaxy 4C 19.71
• Space Debris -- Optical Measurements
• Lyα Halos around [O III]-Selected Galaxies in HETDEX
• Strongly Time-Variable Ultra-Violet Metal Line Emission from the Circum-Galactic Medium of High-Redshift Galaxies
• A double-peaked Lyman-$\alpha$ emitter with a strong blue peak multiply imaged by the galaxy cluster RXC J0018.5+1626
• Median Surface Brightness Profiles of Lyman-$\alpha$ Haloes in the MUSE Extremely Deep Field
• Constraining the cosmic UV background at z>3 with MUSE Lyman-α emission observations
• Lyman-$\alpha$ Polarization Intensity Mapping
• MUSE-inspired view of the quasar Q2059-360, its Lyman alpha blob, and its neighborhood
• 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
• Diffuse Lyman-alpha Halos around ~300 Spectroscopically Confirmed Lyman-alpha Emitters at z ~ 5.7
• Linking Mg II and [O II] spatial distribution to ionizing photon escape in confirmed LyC leakers and non-leakers
• SILVERRUSH. XI. Intensity Mapping for Lya Emission Extending over $100-1000$ comoving kpc around $z\sim 2-7$ LAEs with Subaru HSC-SSP and CHORUS Data
• Inside-out star formation quenching and the need for a revision of bulge-disk decomposition concepts for spiral galaxies
• Prospects for Observing the low-density Cosmic Web in Lyman-alpha Emission
• On the evolution of the size of Lyman alpha halos across cosmic time: no change in the circumgalactic gas distribution when probed by line emission
• Evolution of the Lyman-α emitting fraction and UV properties of lensed star-forming galaxies between 2.9 < z < 6.7
• Three Dimensional Optimal Spectral Extraction (TDOSE) from Integral Field Spectroscopy
• Revealing the Nature of a Lyman-$\alpha$ Halo in a Strongly Lensed Interacting System at $z=2.92$
• Metal content of the circumgalactic medium around star-forming galaxies at z $\sim$ 2.6 as revealed by the VIMOS Ultra-Deep Survey
• A search for dust and molecular gas in enormous Ly$\alpha$ nebulae at $z\approx 2$
• Probing the Diffuse Lyman-alpha Emission on Cosmological Scales: Lyα Emission Intensity Mapping Using the Complete SDSS-IV eBOSS Survey
• The Lyman Alpha Reference Sample XII: Morphology of extended Lyman alpha emission in star-forming galaxies
• Spatially resolved Lyman-$\alpha$ emission around radio bright quasars
• The Ly$\alpha$, CIV, and HeII nebulae around J1000+0234: a galaxy pair at the center of a galaxy overdensity at $z=4.5$
• Discovery of a Damped Ly-alpha System in a Low-z Galaxy Group: Possible Evidence for Gas Inflow and Nuclear Star Formation
• Tomography of the environment of the COSMOS/AzTEC-3 submillimeter galaxy at z=5.3 revealed by Lyalpha and MUSE observations
• RELICS-DP7: Spectroscopic Confirmation of a Dichromatic Primeval Galaxy at z ~ 7
• Spatially-resolved Spectroscopic Analysis of Ly$\alpha$ Haloes: Radial Evolution of the Ly$\alpha$ Line Profile out to 60 kpc
• The Lyman $\alpha$ Reference Sample XIV: Lyman $\alpha$ imaging of 45 low redshift star-forming galaxies and inferences on global emission
• UV & Ly$\alpha$ halos of Ly$\alpha$ emitters across environments at z=2.84
• A galactic outflow traced by its extended Mg II emission out to a $\sim 30$ kpc radius in the Hubble Ultra Deep Field with MUSE
• Crossing walls and windows: the curious escape of Lyman-$\alpha$ photons through ionised channels
• Resolved galactic superwinds reconstructed around their host galaxies at z>3
• The Utility of Lyman-alpha Emission Lines as a Probe of Interactions between High Redshift Galaxies and their Environments
• Direct high-resolution observation of feedback and chemical enrichment in the circumgalactic medium at redshift z ~ 2.8
• Possible evolution of the circum-galactic medium around QSOs with QSO age and cosmic time revealed by Ly$\alpha$ halos
• A new fitting concept for the robust determination of Sérsic model parameters
• Observational Diagnostics of Gas Flows: Insights from Cosmological Simulations
• The Lyman-alpha and Continuum Origins Survey II: the connection between the escape of ionizing radiation and Lyman-alpha halos in star-forming galaxies
• Observations of Ly$\alpha$ Emitters at High Redshift
• Revisiting the Emission Line Source Detection Problem in Integral Field Spectroscopic Data
• A public grid of radiative transfer simulations for Lyman-alpha and metal lines in idealised galactic outflows
• Prospects for detecting cosmic filaments in Lyman-alpha emission across redshifts $z=2-5$
• The Role of Dust, UV Luminosity and Large-scale Environment on the Escape of Lya Photons: A Case Study of a Protocluster field at z = 3.1
• The miniJPAS Survey: Detection of double-core Lyα morphology of two high-redshift (z>3) QSOs
• Circumgalactic Ly$\alpha$ Nebulae in Overdense Quasar Pair Regions Observed with the Palomar Cosmic Web Imager
• The Intrinsic Distribution of Lyman-$\alpha$ Halos
• Revealing the Warm and Hot Halo Baryons via Thomson Scattering of Quasar Light
• The contribution of faint Lyman-$\alpha$ emitters to extended Lyman-$\alpha$ halos constrained by MUSE clustering measurements
• Discovery of faint double-peak Halpha emission in the halo of low redshift galaxies
• A meeting at z~3: Young massive galaxies and an AGN within 30kpc of the luminous QSO LBQS0302-0019
• QSO MUSEUM III: the circumgalactic medium in Ly$\alpha$ emission around 120 $z\sim 3$ quasars covering the SDSS parameter space. Witnessing the instantaneous AGN feedback on halo scales
• A Strange EUV Emission: Scattered Continuum in the Lymann Limit Absorption Edge toward the Quasar SDSS J125903.26+621211.5?
• Lyman-alpha at Cosmic Noon II: The relationship between kinematics and Lyman-alpha in z~2-3 Lyman Break Galaxies
• First statistical constraints on galactic scale outflows properties traced by their extended Mg II emission with MUSE
• The stellar population of a $z\sim 3.25$ Ly$\alpha$ emitting group associated with a damped Ly$\alpha$ absorber
• Bayesian luminosity function estimation in multi-depth datasets with selection effects: A case study for $3<z<5$ Lyman $\alpha$ emitters