Low-frequency integrated radio spectra of diffuse, steep-spectrum sources in galaxy clusters: palaeontology with the MWA and ASKAP

Abstract

Galaxy clusters have been found to host a range of diffuse, non-thermal emission components, generally with steep, power law spectra. In this work we report on the detection and follow-up of radio halos, relics, remnant radio galaxies, and other fossil radio plasmas in Southern Sky galaxy clusters using the Murchison Widefield Array and the Australian Square Kilometre Array Pathfinder. We make use of the frequency coverage between the two radio interferometers - from 88 to $\sim 900$ MHz - to characterise the integrated spectra of these sources within this frequency range. Highlights from the sample include the detection of a double relic system in Abell 3186, a mini-halo in RXC J0137.2-0912, a candidate halo and relic in Abell 3399, and a complex multi-episodic head-tail radio galaxy in Abell 3164. We compare this selection of sources and candidates to the literature sample, finding sources consistent with established radio power-cluster mass scaling relations. Finally, we use the low-frequency integrated spectral index, $\alpha$ ($S_{\nu }\propto {\nu }^{\alpha }$), of the detected sample of cluster remnants and fossil sources to compare with samples of known halos, relics, remnants and fossils to investigate a possible link between their electron populations. We find the distributions of $\alpha$ to be consistent with relic and halo emission generated by seed electrons that originated in fossil or remnant sources. However, the present sample sizes are insufficient to rule out other scenarios.

arXiv comment30 pages, 108 individual PDF figures. Accepted for publication in PASA. Images and catalogue available at https://dx.doi.org/10.26185/611f33b774e96

References in corpus (116)

• Astropy: A Community Python Package for Astronomy
• The NumPy array: a structure for efficient numerical computation
• The VizieR database of Astronomical Catalogues
• The Pan-STARRS1 Photometric System
• The GMRT 150 MHz All-sky Radio Survey: First Alternative Data Release TGSS ADR1
• SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. II. The Source Catalogue
• Linear Regression for Astronomical Data with Measurement Errors and Intrinsic Scatter
• Galaxy cluster X-ray luminosity scaling relations from a representative local sample (REXCESS)
• The ROSAT-ESO Flux Limited X-ray (REFLEX) Galaxy Cluster Survey. V. The cluster catalogue
• The SuperCOSMOS Sky Survey. Paper I: Introduction and Description
• The MCXC: a Meta-Catalogue of X-ray detected Clusters of galaxies
• Cosmic rays in galaxy clusters and their non-thermal emission
• A New Radio - X-Ray Probe of Galaxy Cluster Magnetic Fields
• Particle reacceleration in Coma cluster: radio properties and hard X-ray emission
• Diffuse Radio Emission from Galaxy Clusters
• SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. I. Science goals, survey design and instrumentation
• Particle Acceleration on Megaparsec Scales in a Merging Galaxy Cluster
• A Catalog of 200 Galaxy Clusters Serendipitously Detected in the ROSAT PSPC Pointed Observations
• A catalog of 132,684 clusters of galaxies identified from Sloan Digital Sky Survey III
• On the connection between giant radio halos and cluster mergers
• Bow shock and radio halo in the merging cluster A520
• An optimized algorithm for multi-scale wideband deconvolution of radio astronomical images
• The impact of mergers on relaxed X-ray clusters - I. Dynamical evolution and emergent transient structures
• Reviving Fossil Radio Plasma in Clusters of Galaxies by Adiabatic Compression in Environmental Shock Waves
• A low-frequency radio halo associated with a cluster of galaxies
• The Molonglo Galactic Plane Survey (MGPS-2): Compact Source Catalogue
• The Dark Energy Survey Image Processing Pipeline
• The SuperCOSMOS Sky Survey. Paper II: Image detection, parameterisation, classification and photometry
• Searching for Cool Core Clusters at High redshift
• Revisiting scaling relations for giant radio halos in galaxy clusters
• Radio signature of cosmological structure formation shocks
• GMRT Radio Halo Survey in galaxy clusters at z = 0.2 -- 0.4. II.The eBCS clusters and analysis of the complete sample
• The Case for Electron Re-Acceleration at Galaxy Cluster Shocks
• The SuperCOSMOS Sky Survey. Paper III: Astrometry
• Four Extreme Relic Radio Sources in Clusters of Galaxies
• Radio Halo and Relic Candidates from the Westerbork Northern Sky Survey
• On the Formation of Cluster Radio Relics
• Source finding in the era of the SKA (precursors): Aegean 2.0
• 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
• A radio ridge connecting two galaxy clusters in a filament of the cosmic web
• XMM-Newton Observation of the Northwest Radio Relic Region in Abell 3667
• Calibration of the optical mass proxy for clusters of galaxies and an update of the WHL12 cluster catalog
• Evidence for particle re-acceleration in the radio relic in the galaxy cluster PLCKG287.0 +32.9
• A Flux-limited Sample of Bright Clusters of Galaxies from the Southern Part of the ROSAT All-Sky Survey: the Catalog and the LogN-LogS
• Modeling the interaction between ICM and relativistic plasma in cooling flows: the case of the Perseus Cluster
• The "toothbrush-relic": evidence for a coherent linear 2-Mpc scale shock wave in a massive merging galaxy cluster?
• Substructure of the galaxy clusters in the REXCESS sample: observed statistics and comparison to numerical simulations
• X-Ray morphological analysis of the Planck ESZ clusters
• Comparative analysis of the diffuse radio emission in the galaxy clusters A1835, A2029, and Ophiuchus
• Shock acceleration efficiency in radio relics
• The cool core state of Planck SZ-selected clusters versus X-ray selected samples: evidence for cool core bias
• Hot X-ray coronae around massive spiral galaxies: a unique probe of structure formation models
• In search of dying radio sources in the local universe
• Re-acceleration of Nonthermal Particles at Weak Cosmological Shock Waves
• A new double radio relic in PSZ1 G096.89+24.17 and a radio relic mass-luminosity relation
• The Fundamental Manifold of Spheroids
• Radio continuum observations of new radio halos and relics from the NVSS and WENSS surveys
• Gentle re-energisation of electrons in merging galaxy clusters
• The dynamical state of brightest cluster galaxies and the formation of clusters
• Shock heating of the merging galaxy cluster A521
• Discovery of a spiral-host episodic radio-galaxy
• Low-Frequency study of two clusters of galaxies: A2744 and A2219
• Temperature structure of the intergalactic medium within seven nearby and bright clusters of galaxies observed with XMM-Newton
• Search and modelling of remnant radio galaxies in the LOFAR Lockman Hole field
• Second order Fermi reacceleration mechanisms and large scale synchrotron radio emission in intra-cluster bridges
• A shock at the radio relic position in Abell 115
• The beautiful mess in Abell 2255
• The ROSAT All-Sky Survey: a Catalog of Clusters of Galaxies in a Region of 1 Ster around the South Galactic Pole
• A $\mathcal{M}\gtrsim 3$ shock in `El Gordo' cluster and the origin of the radio relic
• LOFAR discovery of a double radio halo system in Abell 1758 and radio/X-ray study of the cluster pair
• Radio halos in a mass-selected sample of 75 galaxy clusters. II. Statistical analysis
• Remnant radio-loud AGN in the Herschel-ATLAS field
• Re-acceleration Model for Radio Relics with Spectral Curvature
• VLA Radio Observations of the HST Frontier Fields Cluster Abell 2744: The Discovery of New Radio Relics
• The life cycle of radio galaxies in the LOFAR Lockman Hole field
• How many radio relics await discovery?
• Bandpass Dependence of X-ray Temperatures in Galaxy Clusters
• The very steep spectrum radio halo in Abell 697
• Discovery of the first giant double radio relic in a galaxy cluster found in the PLANCK Sunyaev-Zel'dovich cluster survey: PLCK G287.0+32.9
• Merging Cluster Collaboration: A Panchromatic Atlas of Radio Relic Mergers
• Expanding the sample of radio minihalos in galaxy clusters
• Frontier Fields Clusters: Chandra and JVLA View of the Pre-Merging Cluster MACS J0416.1-2403
• The radio relic in Abell 2256: overall spectrum and implications for electron acceleration
• Jet termination in wide-angle tailed radio sources
• Physical insights from the spectrum of the radio halo in MACS J0717.5+3745
• Revived Fossil Plasma Sources in Galaxy Clusters
• 153 MHz GMRT follow-up of steep-spectrum diffuse emission in galaxy clusters
• Discovery of a giant radio fossil in the Ophiuchus galaxy cluster
• ATLBS: the Australia Telescope Low-brightness Survey
• The ROSAT-ESO Flux Limited X-ray Galaxy Cluster Survey (REFLEX II) I. Newly identified X-ray luminous clusters at z>=0.2
• Do radio mini-halos and gas heating in cool-core clusters have a common origin?
• On the relation between mini-halos and AGN feedback in clusters of galaxies
• The LOFAR and JVLA view of the distant steep spectrum radio halo in MACS J1149.5+2223
• PUMA: The Positional Update and Matching Algorithm
• Understanding the radio relic emission in the galaxy cluster MACS J0717.5+3745: spectral analysis
• An Ultra-Steep Spectrum Radio Relic in the Galaxy Cluster Abell 2443
• MWA and ASKAP observations of atypical radio-halo-hosting galaxy clusters: Abell 141 and Abell 3404
• A perfect power-law spectrum even at highest frequencies: The Toothbrush relic
• KAT-7 observations of a mass-selected sample of galaxy clusters
• Twin radio relics in a near-by low-mass galaxy cluster Abell 168
• Recovering galaxy cluster gas density profiles with XMM-Newton and Chandra
• Evolutionary phases of merging clusters as seen by LOFAR
• Diffuse galaxy cluster emission at 168 MHz within the Murchison Widefield Array Epoch of Reionization 0-hour field
• Nonthermal phenomena in the center of Abell 1775: An 800 kpc head-tail, revived fossil plasma and slingshot radio halo
• Ultra-Steep Spectrum Radio `Jellyfish' Uncovered in Abell 2877
• SPT-CL J2032-5627: a new Southern double relic cluster observed with ASKAP
• Redshifts and Velocity Dispersions of Galaxy Clusters in the Horologium-Reticulum Supercluster
• The Aquarius Superclusters - I. Identification of Clusters and Superclusters
• A matched filter approach for blind joint detection of galaxy clusters in X-ray and SZ surveys
• 3C 40 in Abell 194: can tail radio galaxies exist in a quiescent cluster?
• Radio emission from weak spherical shocks in the outskirts of galaxy clusters
• Low(er) frequency follow-up of 28 candidate, large-scale synchrotron sources
• Joint signal extraction from galaxy clusters in X-ray and SZ surveys: A matched-filter approach
• High resolution imaging of the ATLBS regions: the radio source counts

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• The MeerKAT Galaxy Cluster Legacy Survey I. Survey Overview and Highlights
• A MeerKAT-meets-LOFAR Study of MS 1455.0+2232: A 590 kiloparsec 'Mini'-Halo in a Sloshing Cool-Core Cluster
• Exploring diffuse radio emission in galaxy clusters and groups with the uGMRT and the SKA
• Radio multifrequency observations of galaxy clusters. The Abell 399$-$401 pair
• GaLactic and Extragalactic All-sky Murchison Widefield Array survey eXtended (GLEAM-X) I: Survey Description and Initial Data Release