J/A+A/680/A31ivo://CDS.VizieR/J/A+A/680/A31doi:10.26093/cds/vizier/bc-n8/ldbCDSJones A.de Gasperin F.Cuciti V.Botteon A.Zhang X.Gastaldello F.,Shimwell T.Simionescu A.Rossetti M.Cassano R.Akamatsu H.,Bonafede A.Brueggen M.Brunetti G.Camillini L.Di Gennaro G.,Drabent A.Hoang D.N.Rajpurohit K.Natale R.Tasse C.,van Weeren R.J.2026-07-03T06:35:37Z2023-12-07T09:00:30ZCDS support team

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

cds-question@unistra.frgalaxy-clustersradio-continuum-emissionradio-sourcessurveysIt is well-established that shock waves in the intracluster medium launched by galaxy cluster mergers can produce synchrotron emission, which is visible to us at radio frequencies as radio relics. However, the particle acceleration mechanism producing these relics is still not fully understood. It is also unclear how relics relate to radio halos, which trace merger-induced turbulence in the intracluster medium. We aim to perform the first statistical analysis of radio relics in a mass-selected sample of galaxy clusters, using homogeneous observations. We analysed all relics observed by the Low Frequency Array Two Metre Sky Survey Data Release 2 (LoTSS DR2) at 144 MHz, hosted by galaxy clusters in the second Planck catalogue of SZ sources (PSZ2). We measured and compared the relic properties in a uniform, unbiased way. In particular, we developed a method to describe the characteristic downstream width in a statistical manner. Additionally, we searched for differences between radio relic-hosting clusters with and without radio halos. We find that, in our sample, ~10% of galaxy clusters host at least one radio relic. We confirm previous findings, at higher frequencies, of a correlation between the relic-cluster centre distance and the longest linear size, as well as the radio relic power and cluster mass. However, our findings suggest that we are still missing a population of low-power relics. We also find that relics are wider than theoretically expected, even with optimistic downstream conditions. Finally, we do not find evidence of a single property that separates relic-hosting clusters with and without radio halos.2023A&A...680A..31Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/680/A31CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttps://lofar-surveys.org/planck_dr2.html :https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/680/A31https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/680/A31http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/680/A31https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/680/A31https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/680/A31http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/680/A31GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/680/A31/sources (List of studied sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/680/A31/sources?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/680/A31/sources?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/680/A31/sources?GETtext/xml+votable180.050000true230.316130.62780.005555555555555556Cone search capability for table J/A+A/680/A31/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/680/A31/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/680/A31/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/680/A31/list?GETtext/xml+votable180.050000true230.3817830.698640.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/680/A316/2321 4946 5100 5408 5483 5780 7221 7448 9072 9508 9588 10548 10657 10716 10998 11041 11080-11081 11222 11279 11443 13387 13525 19858 19872 20247 20288 28556https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/680/A31?format=asciiRadiodefaultJ/A+A/680/A31/sourcesList of studied sourcesSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName, PSZ2 GLLL.ll+BB.bbmeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainimageslist the fits images for this galaxy clustermeta.ref.urlcharJ/A+A/680/A31/listList of fits imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.dateObservation datestime.epoch;obsnullableFreq? Observed frequencyHzem.freqdoublenullablesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharNameName, PSZ2 GLLL.ll+BB.bbmeta.id;meta.maincharTitleTitle of the FITS filemeta.title;meta.fitscharAssocDataAssociated Data web pagemeta.ref.urlchar