J/ApJ/591/640ivo://CDS.VizieR/J/ApJ/591/640doi:10.26093/cds/vizier.15910640CDSCohen A.S.Rottgering H.J.A.Kassim N.E.Cotton W.D.Perley R.A.,Wilman R.Best P.Pierre M.Birkinshaw M.Bremer M.Zanichelli A.2017-10-18T08:23:54Z2009-04-28T21:58:24ZCDS support team

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

cds-question@unistra.frgalaxy-clustersradio-sourcesgalaxy-classification-systemsThe XMM Large-Scale Structure Survey (XMM-LSS) is a major project to map the large-scale structure of the universe out to cosmological distances. An 8x8 region will be surveyed by XMM with planned optical follow-up to produce a three-dimensional map of many hundreds of clusters out to a redshift of z=1. To explore the relation of the large-scale structure to the location and properties of extragalactic radio sources, the XMM-LSS project also includes a low-frequency radio survey of this region. This combination will provide unprecedented insight into how the radio source formation and evolution are affected by the local environment. Here we present preliminary results from our 325 and 74MHz surveys in this region. At 325MHz, we have a flux limit of 4mJy/beam, a resolution of 6.3", and a total of 256 source detections over 5.6deg^2^. At 74MHz, we have a flux limit of 275mJy/beam, a resolution of 30", and a total of 211 source detections over 110deg^2^. We describe these results and explore what they tell us about the population of extragalactic low-frequency radio sources. The 74MHz survey represents the first presentation of a deep, subarcminute resolution survey at such a low frequency. This was made possible by recent advances in both hardware and data reduction algorithms, which we describe in detail.2003ApJ...591..640Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/591/640CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/xmm : XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2002)IX/37 : XMM-Newton Serendipitous Source Catalogue (1XMM) (XMM-SSC, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/591/640https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/591/640http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/591/640https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/591/640https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/591/640http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/591/640GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/591/640/table3 (74MHz source list)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/591/640/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/591/640/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/591/640/table3?GETtext/xml+votable180.050000true30.438375-4.32355560.005555555555555556Cone search capability for table J/ApJ/591/640/table4 (Objects with known redshifts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/591/640/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/591/640/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/591/640/table4?GETtext/xml+votable180.050000true32.7210833-6.56063890.005555555555555556Cone search capability for table J/ApJ/591/640/table2 (325MHz source list)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/591/640/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/591/640/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/591/640/table2?GETtext/xml+votable180.050000true34.899-4.31208330.0055555555555555564/1105 5/4417 4418 4419 4428 4429 4432 4440 4441 9195 9198 9210 6/17666 17667 17696 17697 17698 17700 17701 17702 17708 17720 17723 17724 17725 17727 17732 17735 17736 17737 17738 17740 17741 17742 17746 17754 17769 17770 17771 17772 17774 17812 17813 17856 17857 36772 36773 36775 36777 36778 36786 36790 36791 36796 36798 36834 36846https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/591/640?format=asciiOpticalRadiodefaultJ/ApJ/591/640/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintBibCodeBibcodemeta.bib.bibcodecharAutAuthotr's namemeta.idcharComCommentsmeta.notecharJ/ApJ/591/640/table374MHz source listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXMM-LSSSource name (JHHMM.m+DDMM)meta.id;meta.maincharprimaryn_XMM-LSS[*] Indicates source detected at 74 and 325MHzmeta.notecharzSimbad column added by the CDSmeta.ref.urlcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Error in Right Ascensionarcsecstat.error;pos.eq.rafloatDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_DEJ2000Error in Declinationarcsecstat.error;pos.eq.decfloatDistDistance from pointing centerdegpos.angDistancefloatTypeSource type (1)src.classcharFluxFlux density at 74MHzmJyphot.flux.density;em.radio.20-100MHzfloate_FluxUncertainty in FluxmJystat.error;phot.fluxfloatl_MajAxis[<= ] Indicates a 2{sigma} upper limit for unresolved source on MajAxismeta.code.error;phys.angSizecharMajAxis? Size of Major Axis (2)arcsecphys.angSizefloatnullablee_MajAxis? Error in MajAxisarcsecstat.error;phys.angSizefloatnullablel_MinAxis[<= ] Indicates a 2{sigma} upper limit for unresolved source on MinAxismeta.code.error;phys.angSizecharMinAxis? Size of Minor Axisarcsecphys.angSize;srcfloatnullablee_MinAxis? Error in MinAxisarcsecstat.error;phys.angSizefloatnullablePA? Position Angledegpos.posAngintnullablee_PA? Error in PAdegstat.errorintnullablef_PA[N] Indicates not applicablemeta.codecharl_alphaLimit flag on alphameta.code.error;pos.eq.racharalphaSpectral index with respect to NVSS 1.4GHz flux (3)spect.index;em.radio.750-1500MHzfloatJ/ApJ/591/640/table4Objects with known redshiftsTypeType (Galaxy or QSO)src.classcharXMM-LSSSource name (JHHMM.m+DDMM)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainzRedshiftsrc.redshiftdoublee_z? rms uncertainty on zstat.error;src.redshiftdoublenullabler_zReference for redshift, in refs.dat filemeta.ref;pos.frameintJ/ApJ/591/640/table2325MHz source listTypeSource type (1)src.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXMM-LSSSource name (JHHMM.m+DDMM)meta.id;meta.maincharprimaryn_XMM-LSS[*] Indicates source detected at 74 and 325MHzmeta.notecharzSimbad column added by the CDSmeta.ref.urlcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Error in Right Ascensionarcsecstat.error;pos.eq.rafloatDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_DEJ2000Error in Declinationarcsecstat.error;pos.eq.decfloatDistDistance from pointing centerdegpos.angDistancefloatFluxFlux density at 325MHzmJyphot.flux.density;em.radio.200-400MHzfloate_FluxUncertainty in FluxmJystat.error;phot.fluxfloatl_MajAxis[<= ] Indicates a 2{sigma} upper limit for unresolved source on MajAxismeta.code.error;phys.angSizecharMajAxis? Size of Major Axis (2)arcsecphys.angSizefloatnullablee_MajAxis? Error in MajAxisarcsecstat.error;phys.angSizefloatnullablel_MinAxis[<= ] Indicates a 2{sigma} upper limit for unresolved source on MinAxismeta.code.error;phys.angSizecharMinAxis? Size of Minor Axisarcsecphys.angSize;srcfloatnullablee_MinAxis? Error in MinAxisarcsecstat.error;phys.angSizefloatnullablePA? Position Angledegpos.posAngintnullablee_PA? Error in PAdegstat.errorintnullablef_PA[N] Indicates not applicablemeta.codecharl_alphaLimit flag on alphameta.code.error;pos.eq.racharalphaSpectral index with respect to NVSS 1.4GHz flux (3)spect.index;em.radio.750-1500MHzfloat