J/A+A/643/A172ivo://CDS.VizieR/J/A+A/643/A172doi:10.26093/cds/vizier.36430172CDSIgnesti A.Shimwell T.Brunetti G.Gitti M.Intema H.,van Weeren R.J.Hardcastle M.J.Clarke A.O.Botteon A.Di Gennaro G.,Brueggen M.Browne I.Mandal S.Roettgering H.J.A.Cuciti V.,de Gasperin F.Cassano R.Scaife A.M.M.2021-02-02T09:01:23Z2020-11-20T08:20:04ZCDS support team

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

cds-question@unistra.frgalaxy-clustersradio-continuum-emissionWe present new LOFAR data of the galaxy cluster Abell 2626. Weproduced a new, resolved spectral index map of the source with a resolution of 7" and we studied the spatial correlation of radio and X-ray emission to investigate the interplay between thermal and nonthermal plasma. The new LOFAR data changed our view of the Kite because we discovered two steep-spectrum ({alpha}<-1.5) plumes of emission connected to the arcs. On the basis of our results, we propose that the Kite was originally an X-shaped radio galaxy whose fossil radio plasma, after the end of the activity of the central active galactic nucleus, has been compressed as a consequence of motions of the thermal plasma encompassing the galaxy. The interplay between the compression and advection of the fossil plasma, with the restarting of the nuclear activity of the central galaxy,could have enhanced the radio emission of the fossil plasma producing the arcs of the Kite. We also present the first, low-frequency observation of a jellyfish galaxy in the same field, in which we detect extended, low-frequency emission without a counterpart at higher frequencies.2020A&A...643A.172Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/643/A172CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/643/A172https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/643/A172http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/643/A172https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/643/A172https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/643/A172http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/643/A172GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/643/A172/list (Information on fits image)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/643/A172/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/643/A172/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/643/A172/list?GETtext/xml+votable180.050000true345.1978221.116140.0055555555555555566/20126https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/643/A172?format=asciiRadiodefaultJ/A+A/643/A172/listInformation on fits imagerecnoRecord 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;obsnullableFreqObserved frequencyMHzem.freqfloatsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar