The Planck clusters in the LOFAR sky. I. LoTSS-DR2: new detections and sample overview

Abstract

Relativistic electrons and magnetic fields permeate the intra-cluster medium (ICM) and manifest themselves as diffuse sources of synchrotron emission observable at radio wavelengths, namely radio halos and radio relics. Although there is broad consensus that the formation of these sources is connected to turbulence and shocks in the ICM, the details of the required particle acceleration, the strength and morphology of the magnetic field in the cluster volume, and the influence of other sources of high-energy particles are poorly known. Sufficiently large samples of radio halos and relics, which would allow us to examine the variation among the source population and pinpoint their commonalities and differences, are still missing. At present, large numbers of these sources are easiest to detect at low radio frequencies, where they shine brightly. We examined the low-frequency radio emission from all 309 clusters in the second catalog of Planck Sunyaev Zel'dovich detected sources that lie within the 5634 deg${}^2$ covered by the Second Data Release of the LOFAR Two-meter Sky Survey (LoTSS-DR2). We produced LOFAR images at different resolutions, with and without discrete sources subtracted, and created overlays with optical and X-ray images before classifying the diffuse sources in the ICM, guided by a decision tree. Overall, we found 83 clusters that host a radio halo and 26 that host one or more radio relics (including candidates). About half of them are new discoveries. The detection rate of clusters hosting a radio halo and one or more relics in our sample is $30\pm 11$% and $10\pm 6$%, respectively. Extrapolating these numbers, we anticipate that once LoTSS covers the entire northern sky it will provide the detection of $251\pm 92$ clusters hosting a halo and $83\pm 50$ clusters hosting at least one relic from Planck clusters alone.

arXiv commentMatched to the A&A published version. Abstract abridged to meet arXiv requirements. All FITS images and tables produced in this work are publicly available on the project website https://lofar-surveys.org/planck_dr2.html

References in corpus (177)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• emcee: The MCMC Hammer
• Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
• LOFAR: The LOw-Frequency ARray
• The Murchison Widefield Array: the Square Kilometre Array Precursor at low radio frequencies
• WSClean: an implementation of a fast, generic wide-field imager for radio astronomy
• The eROSITA X-ray telescope on SRG
• Shocks and cold fronts in galaxy clusters
• The LOFAR Two-metre Sky Survey - I. Survey Description and Preliminary Data Release
• Clusters of galaxies : observational properties of the diffuse radio emission
• The LOFAR Two-metre Sky Survey - II. First data release
• Cosmic rays in galaxy clusters and their non-thermal emission
• The Expanded Very Large Array -- a New Telescope for New Science
• The LOFAR Two-metre Sky Survey -- V. Second data release
• Diffuse Radio Emission from Galaxy Clusters
• The Coma cluster magnetic field from Faraday rotation measures
• Improving galaxy morphologies for SDSS with Deep Learning
• On the connection between giant radio halos and cluster mergers
• An optimized algorithm for multi-scale wideband deconvolution of radio astronomical images
• Radio Halo and Relic Candidates from the NRAO VLA Sky Survey
• The impact of mergers on relaxed X-ray clusters - I. Dynamical evolution and emergent transient structures
• Australian Square Kilometre Array Pathfinder: I. System Description
• Cosmic Rays, Radio Halos and Non-Thermal X-ray Emission in Clusters of Galaxies
• LOFAR facet calibration
• LOFAR 150-MHz observations of the Boötes field: Catalogue and Source Counts
• The LOFAR Two Meter Sky Survey: Deep Fields, I -- Direction-dependent calibration and imaging
• A Powerful Radio Halo in the Hottest Known Cluster of Galaxies 1E0657-56
• Faceting for direction-dependent spectral deconvolution
• Cluster mergers and non-thermal phenomena: expectations from a statistical magneto-turbulent model
• Radio and X-ray diffuse emission in six clusters of galaxies
• Halo and Relic Sources in Clusters of Galaxies
• Searching for Cool Core Clusters at High redshift
• Systematic effects in LOFAR data: A unified calibration strategy
• GMRT Radio Halo Survey in galaxy clusters at z = 0.2 -- 0.4. II.The eBCS clusters and analysis of the complete sample
• Radio interferometric gain calibration as a complex optimization problem
• GMRT Radio Halo Survey in galaxy clusters at z = 0.2 -- 0.4 I.The REFLEX sub--sample
• Statistics of Giant Radio Halos from Electron Reacceleration Models
• The X-ray cluster survey with eROSITA: forecasts for cosmology, cluster physics and primordial non-Gaussianity
• Radio Halo and Relic Candidates from the Westerbork Northern Sky Survey
• The diffuse radio emission from the Coma cluster at 2.675 GHz and 4.85 GHz
• On The Origin of Radio Halos in Galaxy Clusters
• On the evolution of giant radio halos and their connection with cluster mergers
• Diffuse Radio Emission in/around the Coma Cluster: Beyond Simple Accretion
• A radio ridge connecting two galaxy clusters in a filament of the cosmic web
• Radio halos in nearby (z < 0.4) clusters of galaxies
• Deep images of cluster radio halos
• LOFAR/H-ATLAS: A deep low-frequency survey of the Herschel-ATLAS North Galactic Pole field
• Discovery of radio halos and double-relics in distant MACS galaxy clusters: clues to the efficiency of particle acceleration
• LOFAR observations of galaxy clusters in HETDEX
• Classifying Radio Galaxies with Convolutional Neural Network
• Non-linear Kalman filters for calibration in radio interferometry
• X-Ray morphological analysis of the Planck ESZ clusters
• Double relics in Abell 2345 and Abell 1240: spectral index and polarization analysis
• Comparative analysis of the diffuse radio emission in the galaxy clusters A1835, A2029, and Ophiuchus
• The cool core state of Planck SZ-selected clusters versus X-ray selected samples: evidence for cool core bias
• Substructure and dynamical state of 2092 rich clusters of galaxies derived from photometric data
• A new double radio relic in PSZ1 G096.89+24.17 and a radio relic mass-luminosity relation
• New scaling relations in cluster radio halos and the re-acceleration model
• Gentle re-energisation of electrons in merging galaxy clusters
• Radio continuum observations of new radio halos and relics from the NVSS and WENSS surveys
• New detections of radio minihalos in cool cores of galaxy clusters
• On the occurrence of Radio Halos in galaxy clusters - Insight from a mass-selected sample
• Occurrence of radio minihalos in a mass-limited sample of galaxy clusters
• Relativistic protons in the Coma galaxy cluster: first gamma-ray constraints ever on turbulent reacceleration
• A search for diffuse radio emission in the relaxed, cool-core galaxy clusters A1068, A1413, A1650, A1835, A2029, and Ophiuchus
• The LOFAR LBA Sky Survey I. survey description and preliminary data release
• Spectral index maps of the radio halos in Abell 665 and Abell 2163
• Low-Frequency study of two clusters of galaxies: A2744 and A2219
• Unveiling radio halos in galaxy clusters in the LOFAR era
• Radio Galaxy Zoo: Compact and extended radio source classification with deep learning
• The beautiful mess in Abell 2255
• A shock at the radio relic position in Abell 115
• Particle acceleration in cooling flow clusters of galaxies: the case of Abell 2626
• LOFAR discovery of an ultra-steep radio halo and giant head-tail radio galaxy in Abell 1132
• The Extended GMRT Radio Halo Survey I: New upper limits on radio halos and mini-halos
• LoTSS jellyfish galaxies: I. Radio tails in low redshift clusters
• Radio Halos in future surveys in the radio continuum
• LoTSS jellyfish galaxies: II. Ram pressure stripping in groups versus clusters
• LOFAR discovery of a double radio halo system in Abell 1758 and radio/X-ray study of the cluster pair
• Constraints on diffuse gamma-ray emission from structure formation processes in the Coma cluster
• Implications of Fermi Observations for Hadronic Models of Radio Halos in Clusters of Galaxies
• Discovery of Megaparsec-Scale, Low Surface Brightness Nonthermal Emission in Merging Galaxy Clusters using the Green Bank Telescope
• Low frequency follow up of radio halos and relics in the GMRT Radio Halo Cluster Survey
• A LOFAR study of non-merging massive galaxy clusters
• A search for steep spectrum radio relics and halos with the GMRT
• Morphological classification of radio galaxies: Capsule Networks versus Convolutional Neural Networks
• Fast magnetic field amplification in distant galaxyclusters
• How many radio relics await discovery?
• A plethora of diffuse steep spectrum radio sources in Abell 2034 revealed by LOFAR
• Morphology parameters: substructure identification in X-ray galaxy clusters
• Revised statistics of radio halos and the re-acceleration model
• NGC 326: X-shaped no more
• First evidence of diffuse ultra-steep-spectrum radio emission surrounding the cool core of a cluster
• The very steep spectrum radio halo in Abell 697
• The Coma cluster at LOFAR frequencies I: insights into particle acceleration mechanisms in the radio bridge
• Can cluster merger shocks reproduce the luminosity and shape distribution of radio relics?
• A snapshot of the oldest AGN feedback phases
• Robust Quantification of Galaxy Cluster Morphology Using Asymmetry and Central Concentration
• Dynamical state for 964 galaxy clusters from Chandra X-ray images
• The FIRST Classifier: Compact and Extended Radio Galaxy Classification using Deep Convolutional Neural Networks
• The ultra-steep diffuse radio emission observed in the cool-core cluster RX J1720.1+2638 with LOFAR at 54 MHz
• LOFAR Observations of X-ray Cavity Systems
• Revived Fossil Plasma Sources in Galaxy Clusters
• Radio morphology and spectral analysis of cD galaxies in rich and poor galaxy clusters
• 153 MHz GMRT follow-up of steep-spectrum diffuse emission in galaxy clusters
• Machine learning technique for morphological classification of galaxies from the SDSS. I. Photometry-based approach
• An Objective Survey of Mpc-Scale Radio Emission in 0.03<z<0.3 Bright X-ray Clusters
• Unveiling the rarest morphologies of the LOFAR Two-metre Sky Survey radio source population with self-organised maps
• Radio spectral properties and jet duty cycle in the restarted radio galaxy 3C388
• Mpc-scale diffuse radio emission in two massive cool-core clusters of galaxies
• Abell 1033: birth of a radio phoenix
• The contribution of discrete sources to the sky temperature at 144 MHz
• Discovering the most elusive radio relic in the sky: Diffuse Shock Acceleration caught in the act?
• Constraining the AGN duty cycle in the cool-core cluster MS 0735.6+7421 with LOFAR data
• The scaling relations and the fundamental plane for radio halos and relics of galaxy clusters
• LoTSS Jellyfish Galaxies III. The first identification of jellyfish galaxies in the Perseus cluster
• Deep Learning Based Detection of Cosmological Diffuse Radio Sources
• GASP XXXVIII: The LOFAR-MeerKAT-VLA view on the non-thermal side of a jellyfish galaxy
• A Robust Model for Flux Density Calculations of Radio Halos in Galaxy Clusters: Halo-FDCA
• Particle acceleration in a nearby galaxy cluster pair: the role of cluster dynamics
• Diffuse radio emission in MACS J1752.0+4440
• Discovery of a Supercluster in the eROSITA Final Equatorial Depth Survey: X-ray Properties, Radio Halo, and Double Relics
• An Ultra-Steep Spectrum Radio Relic in the Galaxy Cluster Abell 2443
• Analytical model for cluster radio relics
• ComPRASS: a Combined Planck-RASS catalogue of X-ray-SZ clusters
• Probing the Relation Between X-ray-Derived and Weak-Lensing-Derived Masses for Shear-Selected Galaxy Clusters: I. A781
• Optical identifications of high-redshift galaxy clusters from Planck Sunyaev-Zeldovich survey
• New radio halos and relics in clusters of galaxies
• Optical validation and characterization of Planck PSZ1 sources at the Canary Islands observatories. I. First year of ITP13 observations
• Detection of diffuse radio emission in the galaxy clusters A800, A910, A1550, and CL1446+26
• An extension of the Planck galaxy cluster catalogue
• Narrow head-tail radio galaxies at very high resolution
• Mystery solved: discovery of extended radio emission in the merging galaxy cluster Abell 2146
• Ultra-steep spectrum emission in the merging galaxy cluster Abell 1914
• Evolutionary phases of merging clusters as seen by LOFAR
• The eROSITA Final Equatorial-Depth Survey (eFEDS): LOFAR view of brightest cluster galaxies and AGN feedback
• A 3.5 Mpc-long radio relic in the galaxy cluster ClG 0217+70
• A giant radio halo in the massive and merging cluster Abell 1351
• Probing the Curious Case of a Galaxy Cluster Merger in Abell 115 with High Fidelity Chandra X-ray Temperature and Radio Maps
• Chandra View of the Ultra-Steep Spectrum Radio Source in Abell 2443: Merger Shock-Induced Compression of Fossil Radio Plasma?
• Nonthermal phenomena in the center of Abell 1775: An 800 kpc head-tail, revived fossil plasma and slingshot radio halo
• Origin of the ring structures in Hercules A -- Sub-arcsecond 144 MHz to 7 GHz observations
• XMM-Newton observations of the Coma cluster relic 1253+275
• The Good, the Bad and the Ugly: Statistical quality assessment of SZ detections
• Optical & Sunyaev-Zel'dovich Observations of a New Sample of Distant Rich Galaxy Clusters in the ROSAT All Sky Survey
• The puzzling radio source in the cool core cluster A 2626
• Diffuse Radio Emission from Galaxy Clusters in the LOFAR Two-metre Sky Survey Deep Fields
• The large-scale diffuse radio emission in A781
• The great Kite in the sky: a LOFAR observation of the radio source in Abell 2626
• Characterizing the radio emission from the binary galaxy cluster merger Abell 2146
• Ultra-Steep Spectrum Radio `Jellyfish' Uncovered in Abell 2877
• Characterization of a subsample of the Planck SZ source cluster catalogues using optical SDSS DR12 data
• A Massive Cluster at z = 0.288 Caught in the Process of Formation: The Case of Abell 959
• A LOFAR view into the stormy environment of the galaxy cluster 2A0335+096
• LOFAR discovery of a radio halo in the high-redshift galaxy cluster PSZ2 G099.86+58.45
• Discovery of a radio halo (and relic) in a $M_{500}<2\times 10^{14}$ M${}_{\odot }$ cluster
• Optical validation and characterization of Planck PSZ2 sources at the Canary Islands observatories. II. Second year of LP15 observations
• Studying the late evolution of a radio-loud AGN in a galaxy group with LOFAR
• The merging galaxy cluster Abell 3266 at low radio frequencies
• An elusive radio halo in the merging cluster Abell 781?
• Signatures from a merging galaxy cluster and its AGN population: LOFAR observations of Abell 1682
• A study of spectral curvature in the radio relic in Abell 4038 using the uGMRT
• Forming one of the most massive objects in the Universe: The quadruple merger in Abell 1758
• New JVLA observations at 3 GHz and 5.5 GHz of the `Kite' radio source in Abell 2626
• The spectacular cluster chain Abell 781 as observed with LOFAR, GMRT, and XMM-Newton
• LOFAR Detection of a Low-Power Radio Halo in the Galaxy Cluster Abell 990
• Optical validation and characterization of \Planck\ PSZ2 sources at the Canary Islands observatories. I. First year of LP15 observations
• Signatures of multiple episodes of AGN activity in the core of Abell 1795
• Discovery of large-scale diffuse radio emission in low-mass galaxy cluster Abell 1931
• Discovery of a fourth arc in Abell 2626 at 610 MHz with the GMRT: Spectral properties and possibilities for the origin
• Optical follow-up study of 32 high-redshift galaxy cluster candidates from Planck with the William Herschel Telescope
• uGMRT detection of cluster radio emission in low-mass Planck~SZ clusters
• Diffuse radio emission in the complex merging galaxy cluster Abell 2069
• Radio-relic and the diffuse emission trail discovered in a low mass galaxy cluster Abell 1697
• Imaging results from the legacy GMRT Galaxy Cluster Key Project

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• Surface brightness discontinuities in radio halos. Insights from the MeerKAT Galaxy Cluster Legacy Survey
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• A MeerKAT-meets-LOFAR study of Abell 1413: a moderately disturbed non-cool-core cluster hosting a $\sim 500$ kpc 'mini'-halo
• The prototypical major cluster merger Abell 754. I. Calibration of MeerKAT data and radio/X-ray spectral mapping of the cluster
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• Limits and challenges of the detection of cluster-scale diffuse radio emission at high redshift: The Massive and Distant Clusters of WISE Survey (MaDCoWS) in LoTSS-DR2
• Double radio relics and radio halo in the high redshift galaxy cluster El Gordo with the Upgraded GMRT
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• Prospects for $\gamma$-ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array
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• Weak-Lensing Analysis of the Complex Cluster Merger Abell 746 with Subaru/Hyper Suprime-Cam
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• High-energy neutrino constraints on cosmic-ray re-acceleration in radio halos of massive galaxy clusters
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• A Semi-Analytical Model for the Formation and Evolution of Radio Relics in Galaxy Clusters
• Constraining the average magnetic field in galaxy clusters with current and upcoming CMB surveys
• Electron-Ion Equilibration in the Merging Galaxy Cluster A665
• Radio emission from a massive node of the cosmic web. A discovery powered by machine learning
• CHEX-MATE: New detections and properties of the radio diffuse emission in massive clusters with MeerKAT
• New supernova remnant candidates in the LOFAR Two Metre Sky Survey
• Toward a Robust R2D2 Paradigm for Radio-interferometric Imaging: Revisiting Deep Neural Network Training and Architecture
• Mapping Diffuse Radio Sources Using TUNA: A Transformer-Based Deep Learning Approach
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• Resurging from the ashes: A spectral study of seven candidate revived radio fossils in nearby low-mass galaxy clusters
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