J/MNRAS/339/913ivo://CDS.VizieR/J/MNRAS/339/913doi:10.26093/cds/vizier.73390913CDSEdge A.C.Ebeling H.Bremer M.Rottgering H.Van Haarlem M.P.,Rengelink R.Courtney N.J.D.2024-06-28T20:17:08Z2006-03-11T23:36:29ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesradio-sourcesWe discuss the radio, optical, and X-ray properties of two newly discovered, very X-ray luminous, distant clusters of galaxies. Both systems were noted as cluster candidates in a cross-correlation of data from the WENSS (<VIII/162>) radio survey and the ROSAT All-Sky Survey (<IX/10>). Follow-up observations performed by us and the Massive Cluster Survey (MACS) team confirmed both sources as distant galaxy clusters. The first cluster, MACS J0717.5+3745 at a redshift of z=0.5548, contains a very extended, steep-spectrum radio source offset from the cluster core, making it the most distant radio relic known. The second cluster, MACS J1621.3+3810 at z=0.465, is a strong cooling flow with a relatively weak central radio source. We present results from ROSAT High-Resolution Imager (HRI, Cat. <IX/28>) observations of both clusters as well as from optical imaging and VLA radio interferometry observations. Our discoveries demonstrate that distant clusters can be efficiently identified in a relatively shallow X-ray survey, that radio/X-ray selection is efficient, and that both cooling flow and non-cooling flow clusters are selected.2003MNRAS.339..913Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/339/913CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)IX/28 : ROSAT HRI Pointed Observations (1RXH) (ROSAT Team, 2000)I/221 : The Magellanic Catalogue of Stars - MACS (Tucholke+ 1996)VIII/62 : The Westerbork Northern Sky Survey (Leiden, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/339/913https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/339/913http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/339/913https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/339/913https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/339/913http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/339/913GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/339/913/table2 (Identifications of cluster candidates and known clusters with z>0.3.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/339/913/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/339/913/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/339/913/table2?GETtext/xml+votable180.050000true4.61583329.7916670.0055555555555555566/1696 2134 2298 2648 3441 5015 5100 5288 5622 5624 5698 5795 6011 6023 6324 6338 6383 6433 6498 6534 6551 6584 6862 6901 7050 7317 7345 7389 7448 7828 7894 7984 7991 8033 8067 9052 9172 9187 9466 9481 9498 9504 9509 9543 9554 9568 9589 9656 9684 9694 9761 9795 9815 9869 9933 9940 9988 9996 10156 10181 10397 10510 10526 10561 10660 10743 10771 10825 10837 10854 10900 10978 10994 11068 11098 11170 11253 11290 11390 11467 12001 12147 12166 12184 12189 13736 13760 13840 15003 15019 15192 15251 15907 15976 15982 15986 16021 16051 16054 16056 16118 16347 20313 20315 20325 20342 28594 32624 32636 32677 32740https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/339/913?format=asciiX-rayRadiodefaultJ/MNRAS/339/913/table2Identifications of cluster candidates and known clusters with z>0.3.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRASS-BSCRASS-BSC designation (JHHMMSS.s+DDMMSS)charn_RASS-BSC[*] Note (1)charWENSSWENSS designation (WNBHHMM.m+DDMM)charOffSetOffset between RASS-BSC and WENSS objectsarcsecfloatFluxWENSS Integrated flux density at 330MHzmJyintSp-IndexSpectral index (alpha^1.4GHz^_365MHz_)floatP1.4GHz[YN] Polarized flag, Pol_1.4GHz_>2%charObs?[YN-] Observed ?charNoteComments, identifications and redshifts (2)Ref? Reference for redshift specified in Com, in refs.dat file (3)intnullable_RAPosition derived from RASS-BSC name (right ascension part)degpos.eq.ra;meta.main_DEPosition derived from RASS-BSC name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/339/913/refsReferencesComCommentscharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codeintprimaryBibCodeBibCodecharAutAuthor's namechar