J/A+A/695/A215ivo://CDS.VizieR/J/A+A/695/A215doi:10.26093/cds/vizier/bc-nq/lcbfCDSDi Gennaro G.Bruggen M.Moravec E.Di Mascolo L.Van Weeren R.J.,Brunetti G.Cassano R.Botteon A.Churazov E.Khabibullin I.,Lyskova N.De Gasperin F.Hardcastle M.J.Rottgering H.J.A.,Shimwell T.Sunyaev R.Stanford A.2026-07-03T06:36:37Z2025-08-28T08:53:18ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxy-clustersradio-sourcesredshiftedDiffuse radio emission in galaxy clusters is a tracer of ultra-relativistic particles and uG-level magnetic fields, and is thought to be triggered by cluster merger events. In the distant Universe (i.e. z>0.6), such sources have been observed only in a handful of systems, and their study is important to understand the evolution of large-scale magnetic fields over the cosmic time. Previous studies of nine Planck clusters up to z~0.9 suggest a fast amplification of cluster-scale magnetic fields, at least up to half of the current Universe's age, and steep spectrum cluster scale emission, in line with particle re-acceleration due to turbulence. In this paper, we investigate the presence of diffuse radio emission in a larger sample of galaxy clusters reaching even higher redshifts (i.e. z?~1). We selected clusters from the Massive and Distant Clusters of WISE Survey (MaDCoWS) with richness {lambda}15>40 covering the area of the second data release of the LOFAR Two-Meter Sky Survey (LoTSS-DR2) at 144MHz. These selected clusters are in the redshift range 0.78-1.53 (with a median value of 1.05). We detect the possible presence of diffuse radio emission, with the largest linear sizes of 350-500kpc, in five out of the 56 clusters in our sample. If this diffuse radio emission is due to a radio halo, these radio sources lie on or above the scatter of the P_V_-M500 radio halo correlations (at 150MHz and 1.4GHz) found at z<0.6, depending on the mass assumed. We also find that these radio sources are at the limit of the detection by LoTSS, and therefore deeper observations are important for future studies.2025A&A...695A.215Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/695/A215CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/240/33 : MaDCoWS. I. Catalog of z~1 galaxy clusters (Gonzalez+, 2019)J/A+A/659/A1 : LOFAR Two-metre Sky Survey (LoTSS) DR2 (Shimwell+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/695/A215https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/695/A215http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/695/A215https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/695/A215https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/695/A215http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/695/A215GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/695/A215/tablea1 (List of MaDCoWS clusters (Gonzalez et al., 2019ApJS..240...33G, Cat. J/ApJS/240/33) in LOFAR-DR2 (Shimwell et al., 2022A&A...659A...1S, Cat. J/A+A/659/A1) with richness {lambda}15>40)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/695/A215/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/695/A215/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/695/A215/tablea1?GETtext/xml+votable180.050000true1.6220830.848610.0055555555555555566/922 2087 2217 2223 2236 2570 4968 5022 5055 5386 5682 6080 6445 7188 7395 7477 7544 7577 7604 7768 9181 9461 9566 9572 9980 10257 10282 10308 10341 10352 10381 10457 10500 10523 10575 10809 10831 10961 11016 11025 11111 11124 11306 11319 11364 11386 11406 11546 11598 11652 11931 11939 13411 19823 19939 20221 20293 20331 20342 20452 28601 286359.54153977050123e-26 9.54153977050123e-26https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/695/A215?format=asciiRadiodefaultJ/A+A/695/A215/tablea1List of MaDCoWS clusters (Gonzalez et al., 2019ApJS..240...33G, Cat. J/ApJS/240/33) in LOFAR-DR2 (Shimwell et al., 2022A&A...659A...1S, Cat. J/A+A/659/A1) with richness {lambda}15>40recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster name (MOO), JHHMM+DDMM (1)meta.id;meta.maincharzRedshift (1)src.redshiftfloatzsp? Spectroscopic redshiftsrc.redshiftfloatnullableRAJ2000Right ascension (J2000) (1)degpos.eq.ra;meta.mainDEJ2000Declination (J2000) (1)degpos.eq.dec;meta.mainlambda15Richness (1)src.class.richnessinte_lambda15Richness error (1)stat.errorintM500Cluster mass (2)1e+14solMassphys.massfloate_M500Cluster mass error (lower value)1e+14solMassstat.errorfloatn_M500[*] *: masses obtained from CARMA observations (Decker et al., 2019ApJ...878...72D)meta.notechare1_M500? Cluster mass error (lower value)1e+14solMassstat.errorfloatnullableE_M500? Cluster mass error (upper value)1e+14solMassstat.error;stat.maxfloatnullableE1_M500? Cluster mass error (upper value)1e+14solMassstat.errorfloatnullableMnoisefullMap noise of the full-resolutionuJy/beaminstr.det.noisedoubleMnoiselowMap noise of the low-resolutionuJy/beaminstr.det.noisedoublel_S144MHzLimit flag on S144MHzmeta.code.errorcharS144MHz? Flux density at 144MHzmJyphot.flux.density;em.radio.100-200MHzfloatnullablee_S144MHz? Flux density at 144MHzmJystat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar