Forming intracluster gas in a galaxy protocluster at a redshift of 2.16

Abstract

Galaxy clusters are the most massive gravitationally bound structures in the Universe, comprising thousands of galaxies and pervaded by a diffuse, hot ``intracluster medium'' (ICM) that dominates the baryonic content of these systems. The formation and evolution of the ICM across cosmic time is thought to be driven by the continuous accretion of matter from the large-scale filamentary surroundings and dramatic merger events with other clusters or groups. Until now, however, direct observations of the intracluster gas have been limited only to mature clusters in the latter three-quarters of the history of the Universe, and we have been lacking a direct view of the hot, thermalized cluster atmosphere at the epoch when the first massive clusters formed. Here we report the detection (about $6\sigma$) of the thermal Sunyaev-Zeldovich (SZ) effect in the direction of a protocluster. In fact, the SZ signal reveals the ICM thermal energy in a way that is insensitive to cosmological dimming, making it ideal for tracing the thermal history of cosmic structures. This result indicates the presence of a nascent ICM within the Spiderweb protocluster at redshift $z=2.156$, around 10 billion years ago. The amplitude and morphology of the detected signal show that the SZ effect from the protocluster is lower than expected from dynamical considerations and comparable with that of lower-redshift group-scale systems, consistent with expectations for a dynamically active progenitor of a local galaxy cluster.

arXiv comment18 pages (main text + methods), 10 figures, 2 tables; published online in Nature on March 29th, 2023

References in corpus (94)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
• Observational Evidence of AGN Feedback
• dynesty: A Dynamic Nested Sampling Package for Estimating Bayesian Posteriors and Evidences
• The universal galaxy cluster pressure profile from a representative sample of nearby systems (REXCESS) and the Y_SZ-M_500 relation
• Formation of Galaxy Clusters
• Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey
• Effects of Galaxy Formation on Thermodynamics of the Intracluster Medium
• The 10 Meter South Pole Telescope
• Mechanical Feedback from Active Galactic Nuclei in Galaxies, Groups, and Clusters
• The Atacama Large Millimeter/submillimeter Array
• PolyChord: next-generation nested sampling
• Towards a realistic population of simulated galaxy groups and clusters
• SINFONI - Integral Field Spectroscopy at 50 milli-arcsecond resolution with the ESO VLT
• The realm of the galaxy protoclusters
• Bayesian model averaging: A systematic review and conceptual classification
• The galaxy cluster mass scale and its impact on cosmological constraints from the cluster population
• Compressed sensing imaging techniques for radio interferometry
• The Representative XMM-Newton Cluster Structure Survey (REXCESS) of an X-ray Luminosity Selected Galaxy Cluster Sample
• Interferometric Imaging Directly with Closure Phases and Closure Amplitudes
• Astrophysics with the Spatially and Spectrally Resolved Sunyaev-Zeldovich Effects: A Millimetre/Submillimetre Probe of the Warm and Hot Universe
• The SPTpol Extended Cluster Survey
• The Population of Dark Matter Subhaloes: Mass Functions and Average Mass Loss Rates
• Radio Continuum Imaging of High Redshift Radio Galaxies
• An excess of dusty starbursts related to the Spiderweb galaxy
• The Remarkable Similarity of Massive Galaxy Clusters From z~0 to z~1.9
• Nested sampling for physical scientists
• Sparsity Averaging Reweighted Analysis (SARA): a novel algorithm for radio-interferometric imaging
• The Spiderweb galaxy: a forming massive cluster galaxy at z~2
• Toward Unbiased Galaxy Cluster Masses from Line of Sight Velocity Dispersions
• The impact of mergers on relaxed X-ray clusters - II. Effects on global X-ray and SZ properties and their scaling relations
• The Redshift Evolution of the Mean Temperature, Pressure, and Entropy Profiles in 80 SPT-Selected Galaxy Clusters
• A search for clusters at high redshift - III. Candidate H-alpha emitters and EROs in the PKS 1138-262 proto-cluster at z=2.16
• The application of compressive sampling to radio astronomy I: Deconvolution
• LOFAR Sparse Image Reconstruction
• Super-resolution Full Polarimetric Imaging for Radio Interferometry with Sparse Modeling
• Molecular Gas in the Halo Fuels the Growth of a Massive Cluster Galaxy at High Redshift
• Pressure of the hot gas in simulations of galaxy clusters
• The X-ray -- radio alignment in the z = 2.2 radio galaxy PKS 1138--262
• The imprints of local superclusters on the Sunyaev-Zel'dovich signals and their detectability with Planck
• A search for clusters at high redshift - IV. Spectroscopy of H-alpha emitters in a proto-cluster at z=2.16
• Scaling Properties of Galaxy Groups
• Coordinate Descent Converges Faster with the Gauss-Southwell Rule Than Random Selection
• Testing Sunyaev-Zel'dovich measurements of the hot gas content of dark matter haloes using synthetic skies
• Galaxy Clusters Selected via the Sunyaev-Zel'dovich Effect in the SPTpol 100-Square-Degree Survey
• 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
• Giant galaxy growing from recycled gas: ALMA maps the circumgalactic molecular medium of the Spiderweb in [CI]
• SZE Observables, Pressure Profiles and Center Offsets in Magneticum Simulation Galaxy Clusters
• Sparsity and adaptivity for the blind separation of partially correlated sources
• The DIANOGA simulations of galaxy clusters: characterizing star formation in proto-clusters
• MORESANE: MOdel REconstruction by Synthesis-ANalysis Estimators. A sparse deconvolution algorithm for radio interferometric imaging
• A SINFONI view of flies in the Spiderweb: a galaxy cluster in the making
• Forming intracluster gas in a galaxy protocluster at a redshift of 2.16
• Environmental impacts on molecular gas in protocluster galaxies at z~2
• Very Light Magnetized Jets on Large Scales - I. Evolution and Magnetic Fields
• Superresolution Interferometric Imaging with Sparse Modeling Using Total Squared Variation --- Application to Imaging the Black Hole Shadow
• Optical and near-IR spectroscopy of candidate red galaxies in two z~2.5 proto-clusters
• The XXL Survey: XVII. X-ray and Sunyaev-Zel'dovich Properties of the Redshift 2.0 Galaxy Cluster XLSSC 122
• Diffuse UV light associated with the Spiderweb Galaxy: evidence for in-situ star formation outside galaxies
• CO(1-0) detection of molecular gas in the massive Spiderweb Galaxy (z=2)
• Merger induced scatter and bias in the cluster mass - Sunyaev-Zeldovich effect scaling relation
• The Young and the Wild: What happens to Protoclusters forming at z = 4?
• On the X-ray emission of z~2 radio galaxies: IC scattering of the CMB & no evidence for fully-formed potential wells
• 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
• nestcheck: diagnostic tests for nested sampling calculations
• Cosmology dependency of halo masses and concentrations in hydrodynamic simulations
• Comprehensive Gas Characterization of a $z=2.5$ Protocluster: A Cluster Core Caught in the Beginning of Virialization?
• Signs of environmental effects on star-forming galaxies in the Spiderweb protocluster at z=2.16
• ALMA Finds Dew Drops in the Dusty Spider's Web
• The Sunyaev-Zel'dovich Effect at Five Arc-seconds: RXJ1347.5-1145 Imaged by ALMA
• The 700 ks Chandra Spiderweb Field II: Evidence for inverse-Compton and thermal diffuse emission in the Spiderweb galaxy
• Scaling Rrelation in two situations of extreme mergers
• Simulating the formation of a proto-cluster at z~2
• A joint ALMA-Bolocam-Planck SZ study of the pressure distribution in RX J1347.5-1145
• An ALMA+ACA measurement of the shock in the Bullet Cluster
• Erratum for: An X-ray Cluster at Redshift 2.156?
• Sunyaev-Zel'dovich detection of the galaxy cluster Cl J1449+0856 at z = 1.99: the pressure profile in uv space
• Feeding the spider with carbon -- [CII] emission from the circum galactic medium and active galactic nucleus
• A Baryonic Effect on the Merger Timescale of Galaxy Clusters
• The Spiderweb proto-cluster is being magnetized by its central radio jet
• Joint Multichannel Deconvolution and Blind Source Separation
• Deeply cooled core of the Phoenix galaxy cluster imaged by ALMA with the Sunyaev-Zel'dovich effect
• Bayesian sparse reconstruction: a brute-force approach to astronomical imaging and machine learning
• Multiwavelength view of SPT-CL J2106-5844. The radio galaxies and the thermal and relativistic plasmas in a massive galaxy cluster merger at z~1.13
• X-ray Emission and Radio Emission from the Jets and Lobes of the Spiderweb Radio Galaxy
• The Massive and Distant Clusters of WISE Survey: SZ effect Verification with the Atacama Compact Array -- Localization and Cluster Analysis
• The European ALMA Regional Centre Network: A Geographically Distributed User Support Model

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• Quantifying the detection likelihood of faint peaks in interferometric data through jackknifing: Test application on finding $z>10$ galaxy candidates
• An X-ray-Emitting Proto-Cluster at $z\approx 5.7$ Reveals Rapid Structure Growth
• Probing the influence of the protocluster environment on galaxy morphology at z = 2.23
• A Decentralized Framework for Radio-interferometric Image Reconstruction
• Thermal Sunyaev-Zel'dovich effect at the core of CL J1226.9+3332 revealed by NOEMA
• Resolving circumgalactic gas flows around a z$\approx$3.6 quasar using MUSE and ALMA
• Spider-Webb: enhanced star formation in low-mass galaxies within the Spiderweb protocluster revealed by JWST Pa$\beta$ narrow-band imaging