J/MNRAS/373/1531ivo://CDS.VizieR/J/MNRAS/373/1531doi:10.26093/cds/vizier.73731531CDSCruz M.J.Jarvis M.J.Blundell K.M.Rawlings S.Croft S.,Klockner H.-R.McLure R.J.Simpson C.Targett T.A.Willott C.J.2024-07-03T20:14:43Z2007-10-07T09:51:25ZCDS support team

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

cds-question@unistra.frradio-sourcesWe present basic observational data on the 6C** sample. This is a new sample of radio sources drawn from the 151-MHz 6C survey, which was filtered with radio criteria chosen to optimize the chances of finding radio galaxies at z>4. The filtering criteria are a steep-spectral index and a small angular size. The final sample consists of 68 sources from a region of sky covering 0.421sr. We present Very Large Array radio maps, and the results of K-band imaging and optical spectroscopy.2006MNRAS.373.1531Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/373/1531CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/18 : 6C Survey of radio sources - I. (Baldwin+ 1985)VIII/21 : 6C Survey of radio sources - II. (Hales+ 1988)VIII/22 : 6C Survey of Radio Sources - III. (Hales+ 1990)VIII/23 : 6C Survey of radio sources - IV. (Hales+ 1991)VIII/24 : 6C Survey of Radio Sources - V. (Hales+ 1993)VIII/25 : 6C Survey of radio sources - VI. (Hales+ 1993)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/373/1531https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/373/1531http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/373/1531https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/373/1531https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/373/1531http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/373/1531GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/373/1531/tablea1 (The survey flux densities of the 6C** sources and the spectral indices derived from these)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/373/1531/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/373/1531/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/373/1531/tablea1?GETtext/xml+votable180.050000true109.49291746.190.0055555555555555566/5070 5108 5335 5345 5439 5444 5534 5547 5554 5556-5557 5560 5562 5624 5682 5693 5707 5713 5722 5745 5753 5771 5784-5786 5789 5803 5805 5846 5848 5867 5903 5937 5985 5991-5992 6037 6052 6090 6359 6449 6473 6479 6515 6605 6625 6640 6648 6926 6941 6965 6998 7007 7168 7171 7204 7206-7207 7232 7246 7259 7281 7311 7322 28594 28598 28641https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/373/1531?format=asciiRadiodefaultJ/MNRAS/373/1531/tablea1The survey flux densities of the 6C** sources and the spectral indices derived from theseDEJ20006C declination (J2000)pos.eq.dec;meta.mainRANNVSS right ascension (J2000)pos.eq.raDENNVSS declination (J2000)pos.eq.decS151MHz6C flux density at 151MHzJyphot.flux.density;em.radio.100-200MHzfloate_S151MHzrms uncertainty on S151MHzJystat.errorfloatS1.4GHzNVSS flux density at 1.4GHzJyphot.flux.density;em.radio.750-1500MHzfloate_S1.4GHzrms uncertainty on S1.4GHzJystat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint6C6C source name (6CHHMM+DDMM, B1950)meta.id;meta.mainchare_alpharms uncertainty on alphastat.error;pos.eq.rafloatalphaSpectral index 1400MHz to 151MHz (1)spect.index;em.radio.750-1500MHzfloatdistDistance between 6C and NVSS positionarcsecpos;arith.diffintnullableRAJ20006C right ascension (J2000)pos.eq.ra;meta.main