Massive starburst galaxies in a z=2.16 proto-cluster unveiled by panoramic H-alpha mapping

Abstract

We present a panoramic narrow-band study of H-alpha emitters in the field of the z=2.16 proto-cluster around PKS1138-262 using MOIRCS on the Subaru Telescope. We find 83 H-alpha emitters down to a SFR(Ha)~10Msun/yr across a ~7'x7' region centered on the radio galaxy, and identify ~10-Mpc scale filaments of emitters running across this region. By examining the properties of H-alpha emitters within the large-scale structure, we find that galaxies in the higher-density environments at z=2.16 tend to have redder colours and higher stellar masses compared to galaxies in more underdense regions. We also find a population of H-alpha emitters with red colours ((J-Ks)>1), which are much more frequent in the denser environments and which have apparently very high stellar masses with M*>~10^11Msun, implying that these cluster galaxies have already formed a large part of their stellar mass before z~2. Spitzer Space Telescope 24-micron data suggests that many of these red H-alpha emitters are bright, dusty starbursts (rather than quiescent sources). We also find that the proto-cluster galaxies follow the same correlation between SFR and M* (the "main sequence") of z~2 field star-forming galaxies, but with an excess of massive galaxies. These very massive star-forming galaxies are not seen in our similar, previous study of z~1 clusters, suggesting that their star-formation activity has been shut off at 1<~z<~2. We infer that the massive red (but active) galaxies in this rich proto-cluster are likely to be the products of environmental effects, and they represent the accelerated galaxy formation and evolution in a biased high density region in the early Universe.

14 pages, 7 figures, accepted for publication in MNRAS

References in corpus (23)

• The Star-formation Mass Sequence out to z=2.5
• Subaru Deep Survey V. A Census of Lyman Break Galaxies at z=4 and 5 in the Subaru Deep Fields: Photometric Properties
• Distant Radio Galaxies and their Environments
• The DEEP2 Galaxy Redshift Survey: The Role of Galaxy Environment in the Cosmic Star-Formation History
• Protoclusters associated with z > 2 radio galaxies. I. Characteristics of high redshift protoclusters
• HiZELS: a high redshift survey of H-alpha emitters. I: the cosmic star-formation rate and clustering at z=2.23
• The First Appearance of the Red Sequence of Galaxies in Proto-Clusters at 2<~z<~3
• The XMM Cluster Survey: A Massive Galaxy Cluster at z=1.45
• The Spiderweb galaxy: a forming massive cluster galaxy at z~2
• The Evolution of Active Galactic Nuclei in Clusters of Galaxies to Redshift 1.3
• A Panoramic Mid-infrared Survey of Two Distant Clusters
• A star-bursting proto-cluster in making associated to a radio galaxy at z=2.53 discovered by H_alpha imaging
• Spitzer/MIPS 24um Observations of Galaxy Clusters: An Increasing Fraction of Obscured Star-forming Members from z=0.02 to z=0.83
• Strong dusty bursts of star formation in galaxies falling into the cluster RXJ0152.7-1357
• First Measurement of a Rapid Increase in the AGN Fraction in High-Redshift Clusters of Galaxies
• The Nascent Red Sequence at z~2
• Mapping dusty star formation in and around a cluster at z=0.81 by wide-field imaging with AKARI
• MOIRCS Deep Survey. VIII. Evolution of Star Formation Activity as a Function of Stellar Mass in Galaxies since z~3
• Proto-Clusters with Evolved Populations around Radio Galaxies at z~2.5
• Diffuse UV light associated with the Spiderweb Galaxy: evidence for in-situ star formation outside galaxies
• The growth and assembly of a massive galaxy at z ~ 2
• Morphologies of Galaxies in and around a Protocluster at z=2.300
• Dependence of the Build-up of the Colour-Magnitude Relation on Cluster Richness at z ~ 0.8

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• The realm of the galaxy protoclusters
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• The Grism Lens-Amplified Survey from Space (GLASS). I. Survey overview and first data release
• What are Protoclusters? -- Defining High Redshift Galaxy Clusters and Protoclusters
• On the evolution and environmental dependence of the star formation rate versus stellar mass relation since z~2
• An excess of dusty starbursts related to the Spiderweb galaxy
• The Ubiquity of Coeval Starbursts in Massive Galaxy Cluster Progenitors
• Cosmic Web and Star Formation Activity in Galaxies at z~1
• Molecular Gas in the Halo Fuels the Growth of a Massive Cluster Galaxy at High Redshift
• WFC3 grism confirmation of the distant cluster Cl J1449+0856 at z=2.00: Quiescent and star-forming galaxy populations
• Stellar mass function of cluster galaxies at z $\sim$ 1.5: evidence for reduced quenching efficiency at high redshift
• Surveying Galaxy Proto-clusters in Emission: A Large-scale Structure at z=2.44 and the Outlook for HETDEX
• The SINFONI survey of powerful radio galaxies at z~2: Jet-driven AGN feedback during the Quasar Era
• MAHALO Deep Cluster Survey I. Accelerated and enhanced galaxy formation in the densest regions of a protocluster at z=2.5
• The implications of the surprising existence of a large, massive CO disk in a distant protocluster
• Identification of the progenitors of rich clusters and member galaxies in rapid formation at z>2
• MAHALO Deep Cluster Survey II. Characterizing massive forming galaxies in the Spiderweb protocluster at z=2.2
• An early phase of environmental effects on galaxy properties unveiled by near-infrared spectroscopy of protocluster galaxies at z>2
• A z=2.5 protocluster associated with the radio galaxy MRC 2104-242: star formation and differing mass functions in dense environments
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• The SCUBA-2 Cosmology Legacy Survey: Ultraluminous star-forming galaxies in a z=1.6 cluster
• Revealing environmental dependence of molecular gas content in a distant X-ray cluster at z=2.51
• Characterising and Identifying Galaxy Protoclusters
• ZFIRE: Galaxy Cluster Kinematics, H$\alpha$ Star Formation Rates, and Gas-Phase Metallicities of XMM-LSS J02182-05102 at z=1.6233
• Discovery of a Very Large Structure at Z=3.78
• Environmental impacts on molecular gas in protocluster galaxies at z~2
• Large scale structure around a z=2.1 cluster
• On the formation time scale of massive cluster ellipticals based on deep near-IR spectroscopy at z~2
• COSMOS2020: Discovery of a protocluster of massive quiescent galaxies at $z=2.77$
• The Diversity of Diffuse Ly$\alpha$ Nebulae around Star-Forming Galaxies at High Redshift
• Herschel protocluster survey: A search for dusty star-forming galaxies in protoclusters at z=2-3
• Nature of H-alpha selected galaxies at z>2. II. Clumpy galaxies and compact star-forming galaxies
• The environmental impacts on the star formation main sequence: an H-alpha study of the newly discovered rich cluster at z=1.52
• The 700 ks Chandra Spiderweb Field I: evidence for widespread nuclear activity in the Protocluster
• COALAS: I. ATCA CO(1-0) survey and luminosity function in the Spiderweb protocluster at z=2.16
• A large-scale galaxy structure at z = 2.02 associated with the radio galaxy MRC0156-252
• Spectroscopic observations of PHz G237.01+42.50: A galaxy protocluster at z=2.16 in the Cosmos field
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• The dependence of galaxy clustering on stellar mass, star-formation rate and redshift at z = 0.8-2.2, with HiZELS
• Spectroscopic Confirmation of a Coma Cluster Progenitor at z ~ 2.2
• Nature of H-alpha selected galaxies at z>2. I. Main sequence and dusty star-forming galaxies
• A Planck-selected dusty proto-cluster at z=2.16 associated with a strong over-density of massive H$\alpha$ emitting galaxies
• Cosmic Vine: A z=3.44 large-scale structure hosting massive quiescent galaxies
• The Grism lens-amplified survey from space (GLASS). VII. The diversity of the distribution of star formation in cluster and field galaxies at 0.3<z<0.7
• An high definition view of the COSMOS Wall at z~0.73
• Revealing impacts of stellar mass and environment on galaxy quenching
• Planck far-infrared detection of Hyper Suprime-Cam protoclusters at $\mathbf{z}\sim 4$: hidden AGN and star formation activity
• The candidate cluster and protocluster catalog (CCPC) II: Spectroscopically identified structures spanning 2 < z < 6.6
• The UV Luminosity Function of Protocluster Galaxies at $z\sim 4$: the Bright-end Excess and the Enhanced Star Formation Rate Density
• Mapping the large scale structure around a z=1.46 galaxy cluster in 3-D using two adjacent narrow-band filters
• A census of galaxy constituents in a Coma Progenitor observed at z>3
• MAMMOTH: Confirmation of Two Massive Galaxy Overdensities at $z=2.24$ with H$\alpha$ Emitters
• The structure and evolution of a forming galaxy cluster at z = 1.62
• The VANDELS survey: Discovery of massive overdensities of galaxies at z>2
• ZFIRE: Similar Stellar Growth in H$\alpha$-emitting Cluster and Field Galaxies at z~2
• The candidate cluster and protocluster catalog (CCPC) of spectroscopically identified structures spanning $2.74<z<3.71$
• Serendipitous detection of an overdensity of Herschel-SPIRE 250 micron sources south of MRC1138-26
• The Grism Lens-Amplified Survey from Space (GLASS). V. Extent and spatial distribution of star formation in z~0.5 cluster galaxies
• The impact of protocluster environments at z = 1.6
• Similarities and uniqueness of Ly$\alpha$ emitters among star-forming galaxies at z=2.5
• A galaxy group candidate at z~3.7 in the COSMOS field
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• ENISALA: II. Distinct Star Formation and Active Galactic Nucleus Activity in Merging and Relaxed Galaxy Clusters
• Interrelation of the environment of Ly$\alpha$ emitters and massive galaxies at $2<z<4.5$
• Correlations between H$\alpha$ Equivalent Width and Galaxy Properties at $z=0.47$: Physical or Selection-driven?
• Massive Quiescent Galaxies at z>3 in The Millennium Simulation Populated by A Semi-analytic Galaxy Formation Model
• Defying jet-gas alignment in two radio galaxies at z~2 with extended light profiles: Similarities to brightest cluster galaxies
• Extended star-forming region within galaxies in a dense proto-cluster core at z=2.53
• Environmental impacts on the rest-frame UV size and morphology ofstar-forming galaxies at $z\sim 2$
• Revealing the quiescent galaxy population in the Spiderweb protocluster at z=2.16 with deep HST/WFC3 slitless spectroscopy
• ASW${}^2$DF: Census of the obscured star formation in a galaxy cluster in formation at $z=2.2$
• Early Quenching of Massive Protocluster Galaxies Around z=2.2 Radio Galaxies
• COALAS III: The ATCA CO(1-0) look at the growth and death of H$\alpha$ emitters in the Spiderweb protocluster at z=2.16
• A Tale of Two Clusters: An Analysis of Gas-Phase Metallicity and Nebular Gas Conditions in Proto-cluster Galaxies at z~2
• The environments and hosts of metal absorption at z>5
• JWST/NIRCam Narrowband Survey of Pa$\beta$ Emitters in the Spiderweb Protocluster at z=2.16
• Connecting the growth of galaxies to the large-scale environment in a massive node of the Cosmic Web at z~3
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