The Ly$\alpha$, CIV, and HeII nebulae around J1000+0234: a galaxy pair at the center of a galaxy overdensity at $z=4.5$

Abstract

Ly$\alpha$ $\lambda$1216 (Ly$\alpha$) emission extending over $\gtrsim 10\mathrm{kiloparsec}(\mathrm{kpc})$ around dusty, massive starbursts at $z\gtrsim 3$ might represent a short-lived phase in the evolution of present-day, massive quiescent galaxies. To obtain empirical constraints on this emerging scenario, we present Ly$\alpha$, CIV $\lambda$1550 (CIV), and HeII $\lambda$1640 (HeII) observations taken with the Multi Unit Spectroscopic Explorer towards J1000$+$0234: a galaxy pair at $z=4.5$ composed of a low-mass starburst (J1000$+$0234$-$South) neighboring a massive Submillimeter Galaxy (SMG; J1000$+$0234$-$North) that harbors a rotationally supported gas disk. Based on the spatial distribution and relative strength of Ly$\alpha$, CIV, and HeII, we find that star formation in J1000+0234$-$South and an active galactic nucleus in J1000+0234$-$North are dominant factors in driving the observed 40 kiloparsec-scale Ly$\alpha$ blob (LAB). We use the non-resonant HeII line to infer kinematic information of the LAB. We find marginal evidence for two spatially and spectrally separated HeII regions, which suggests that the two-peaked Ly$\alpha$ profile is mainly a result of two overlapping and likely interacting HI clouds. We also report the serendipitous identification of three Ly$\alpha$ emitters spanning over a redshift bin $\Delta z\le 0.007$ (i.e., $\lesssim 380\mathrm{km}{\mathrm{s}}^{-1}$) located at $\lesssim 140\mathrm{kpc}$ from J1000+0234. A galaxy overdensity analysis confirms that J1000+0234 lies near the center of a Megaparsec-scale galaxy overdensity at $z=4.5$ that might evolve into a galaxy cluster at $z=0$. The properties of J1000+0234 and its large-scale environment strengthen the link between SMGs within LABs, tracing overdense regions, as the progenitors of local massive ellipticals in galaxy clusters.

arXiv commentAccepted for publication in MNRAS

References in corpus (110)

• Star Formation in Galaxies Along the Hubble Sequence
• The many lives of active galactic nuclei: cooling flows, black holes and the luminosities and colours of galaxies
• A Unified, Merger-Driven Model for the Origin of Starbursts, Quasars, the Cosmic X-Ray Background, Supermassive Black Holes and Galaxy Spheroids
• Rest-Frame Ultraviolet Spectra of z~3 Lyman Break Galaxies
• The COSMOS2015 Catalog: Exploring the 1<z<6 Universe with half a million galaxies
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• De Re Metallica: The cosmic chemical evolution of galaxies
• Lyman Alpha Imaging of a Proto-Cluster Region at <z>=3.09
• The Chandra Deep Field South: Optical Spectroscopy I
• 3D Lyman-alpha radiation transfer. I. Understanding Lyman-alpha line profile morphologies
• COSMOS2020: A panchromatic view of the Universe to $z\sim 10$ from two complementary catalogs
• Formation of a spiral galaxy in a major merger
• A cosmic web filament revealed in Lyman-alpha emission around a luminous high-redshift quasar
• The VLA-COSMOS 3 GHz Large Project: Continuum data and source catalog release
• Diffuse Lyman Alpha Emitting Halos: A Generic Property of High Redshift Star Forming Galaxies
• Ancient Light from Young Cosmic Cities: Physical and Observational Signatures of Galaxy Proto-Clusters
• A Subaru Search for Ly-alpha Blobs in and around the Proto-cluster Region at Redshift z=3.1
• Sub-millimeter galaxies as progenitors of compact quiescent galaxies
• Ubiquitous giant Ly $\alpha$ nebulae around the brightest quasars at $z\sim 3.5$ revealed with MUSE
• Extended Lyman alpha haloes around individual high-redshift galaxies revealed by MUSE
• Cooling Radiation and the Lyman-alpha Luminosity of Forming Galaxies
• What controls the C IV line profile in active galactic nuclei?
• A massive, quiescent galaxy at redshift of z=3.717
• Quasar Quartet Embedded in Giant Nebula Reveals Rare Massive Structure in Distant Universe
• AzTEC Millimetre Survey of the COSMOS Field: I. Data Reduction and Source Catalogue
• The Dawes Review 9: The role of cold gas stripping on the star formation quenching of satellite galaxies
• Fluorescent Ly-alpha emission from the high-redshift intergalactic medium
• VLA-COSMOS 3GHz Large Project: The infrared-radio correlation of star-forming galaxies and AGN to $z\lesssim 6$
• Observations of the Lyman-$\alpha$ Universe
• Intergalactic Transmission and its Impact on the Lyα Line
• The far-infrared/radio correlation and radio spectral index of galaxies in the SFR-M* plane up to z 2
• Lyman Alpha Blobs as an Observational Signature of Cold Accretion Streams into Galaxies
• Neutral hydrogen in galaxy halos at the peak of the cosmic star formation history
• Superwind model of extended Lyman alpha emitters at high redshift
• The AzTEC mm-Wavelength Camera
• Nearly all the sky is covered by Lyman-alpha emission around high redshift galaxies
• Radiative Transfer Modeling of Lyman Alpha Emitters. I. Statistics of Spectra and Luminosity
• Discovery of an Enormous Ly$\alpha$ nebula in a massive galaxy overdensity at $z=2.3$
• Diffuse Lyman Alpha Haloes around Lyman Alpha Emitters at z=3: Do Dark Matter Distributions Determine the Lyman Alpha Spatial Extents?
• Discovery of a Large ~200 kpc Gaseous Nebula at z=2.7 with the Spitzer Space Telescope
• The role of mergers in driving morphological transformation over cosmic time
• Spectroscopic Confirmation Of An Extreme Starburst At Redshift 4.547
• The large and small scale properties of the intergalactic gas in the Slug Ly-alpha nebula revealed by MUSE HeII emission observations
• Molecular Gas in a Submillimeter Galaxy at z=4.5: Evidence for a Major Merger at 1 Billion Years after the Big Bang
• How is Star Formation Quenched in Massive Galaxies?
• Central Powering of the Largest Lyman-alpha Nebula is Revealed by Polarized Radiation
• HST Images of a Galaxy Group at z=2.81, and the Sizes of Damped Lyman Alpha Galaxies
• A New Population of High Redshift, Dusty Lyman-Alpha Emitters and Blobs Discovered by WISE
• Fast rotating and low-turbulence discs at $z\simeq 4.5$: Dynamical evidence of their evolution into local early-type galaxies
• A Galactic Wind at z = 5.190
• A submm survey of Lyman-alpha haloes in the SA22 protocluster at z=3.1
• Three Lyman-alpha emitting filaments converging to a massive galaxy group at z=2.91: discussing the case for cold gas infall
• The MUSE Hubble Ultra Deep Field Survey XIII. Spatially resolved spectral properties of Lyman alpha haloes around star-forming galaxies at z > 3
• Starburst to quiescent from HST/ALMA: Stars and dust unveil minor mergers in submillimeter galaxies at $z\sim 4.5$
• Statistical Properties of Diffuse Lyman-alpha Halos around Star-forming Galaxies at z~2
• The Discovery of a Large Lyman-alpha+HeII Nebula at z~1.67: A Candidate Low Metallicity Region?
• Ly-alpha excess in high redshift radio galaxies: a signature of star formation
• Physical properties of z>4 submillimeter galaxies in the COSMOS field
• The early early type: discovery of a passive galaxy at z=3
• Can galactic outflows explain the properties of Ly-alpha emitters?
• Mapping the Dynamics of a Giant Ly-alpha Halo at z=4.1 with MUSE: The Energetics of a Large Scale AGN-Driven Outflow around a Massive, High-Redshift Galaxy
• Filamentary Large Scale Structure Traced by Six Ly-alpha Blobs at z=2.3
• Mapping the Lyman-Alpha Emission Around a z~6.6 QSO with MUSE: Extended Emission and a Companion at Close Separation
• Obscured AGN at 1.5 < z < 3.0 from the zCOSMOS-deep Survey I. Properties of the emitting gas in the Narrow Line Region
• On the Diffuse Lyman-alpha Halo Around Lyman-alpha Emitting Galaxies
• Dynamical Characterization of Galaxies at z~4-6 via Tilted Ring Fitting to ALMA [CII] Observations
• Jet-gas interactions in z~2.5 radio galaxies: evolution of the ultraviolet line and continuum emission with radio morphology
• The Diversity of Diffuse Ly$\alpha$ Nebulae around Star-Forming Galaxies at High Redshift
• SILVERRUSH. II. First Catalogs and Properties of ~2,000 Lya Emitters and Blobs at z~6-7 Identified over the 14-21 deg2 Sky
• MUFASA: The assembly of the red sequence
• A Deep Narrowband Imaging Search for CIV and He II Emission from Ly$\alpha$ Blobs
• Spectral shapes of the Lyman-alpha emission from galaxies: I. blueshifted emission and intrinsic invariance with redshift
• Inclination Dependence of Lyman-Alpha Properties in a Turbulent Disk Galaxy
• Metal enriched gaseous halos around distant radio galaxies: Clues to feedback in galaxy formation
• Discovery of a Proto-cluster Associated with a Ly-$\alpha$ Blob Pair at z=2.3
• 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
• ALMA observations of Lyman-alpha Blob 1: halo sub-structure illuminated from within
• Gas Accretion and Giant Lyman-alpha Nebulae
• Deciphering Lyman $\alpha$ blob 1 with deep MUSE observations
• (Sub)millimetre interferometric imaging of a sample of COSMOS/AzTEC submillimetre galaxies III. Environments
• Formation of massive disk galaxies in the IllustrisTNG simulation
• Disc galaxies formed from major mergers in Illustris
• Extended and broad Lyman alpha emission around a BAL quasar at z~5
• The Gentle Growth of Galaxies at High Redshifts in Overdense Environments
• A giant Ly$\alpha$ nebula in the core of an X-ray cluster at $z=1.99$: implications for early energy injection
• A submillimeter galaxy illuminating its circumgalactic medium: Ly-alpha scattering in a cold, clumpy outflow
• Galaxy Formation in Heavily Overdense Regions at z~10: the Prevalence of Disks in Massive Halos
• An ALMA survey of the SCUBA-2 Cosmology Legacy SurveyUKIDSS/UDS Field: Halo Masses for Submillimetre Galaxies
• Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913
• Acceleration of Galactic Supershells by Lyman Alpha Radiation
• Lyman-alpha radiative transfer: Modeling spectrum and surface brightness profile of Lyman-alpha emitting galaxies at z=3-6
• ALMA observations of a z~3.1 Protocluster: Star Formation from Active Galactic Nuclei and Lyman-Alpha Blobs in an Overdense Environment
• Deep submillimeter and radio observations in the SSA22 field. I. Powering sources and Lyα escape fraction of Lyα blobs
• A giant Ly$\alpha$ nebula and a small-scale clumpy outflow in the system of the exotic quasar J0952+0114 unveiled by MUSE
• Probing the AGN Unification Model at redshift z $\sim$ 3 with MUSE observations of giant Ly$\alpha$ nebulae
• ZELDA: fitting Lyman-alpha line profiles using deep learning
• Mapping the Morphology and Kinematics of a Lyman-alpha-selected Nebula at z=3.15 with MUSE
• Nowhere to Hide: Radio-faint AGN in the GOODS-N field. II. Multi-wavelength AGN selection techniques and host galaxy properties
• Mapping the "invisible" circumgalactic medium around a z $\sim$ 4.5 radio galaxy with MUSE
• Photoionization models for extreme Ly$\alpha$ $\lambda$1216 and HeII $\lambda$1640 ratios in quasar halos, and PopIII vs AGN diagnostics
• MUSE unravels the ionisation and origin of metal enriched absorbers in the gas halo of a z = 2.92 radio galaxy
• Galaxy Peculiar Velocities and Infall onto Groups
• The average submillimetre properties of Lyman-alpha Blobs at z=3
• Discovery of a giant and luminous Lya+CIV+HeII nebula at z=3.326 with extreme emission line ratios
• Discovery of a protocluster core associated with an enormous Ly$\alpha$ Nebula at $z=2.3$
• Revealing the Nature of a Lyman-$\alpha$ Halo in a Strongly Lensed Interacting System at $z=2.92$
• Tomography of the environment of the COSMOS/AzTEC-3 submillimeter galaxy at z=5.3 revealed by Lyalpha and MUSE observations
• Lyman alpha Properties of Simulated Galaxies in Overdense Regions: Effects of Galactic Winds at z > 6
• Infall of galaxies onto groups

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• The ALMA-CRISTAL survey: Gas, dust, and stars in star-forming galaxies when the Universe was ~1 Gyr old I. Survey overview and case studies
• A hidden active galactic nucleus powering bright [O III] nebulae in a protocluster at $z=4.5$ revealed by JWST
• The ALMA-CRISTAL survey. Discovery of a 15 kpc-long gas plume in a $z=4.54$ Lyman-$\alpha$ blob
• The ALPINE-CRISTAL-JWST Survey: Gas-phase abundance gradients of main sequence star-forming galaxies and their kinematics at $4<z<6$
• Resolving circumgalactic gas flows around a z$\approx$3.6 quasar using MUSE and ALMA
• GA-NIFS: AGN activity in a Lyα emitter within a triple-AGN system anchored by a passive galaxy at z=3