J/A+A/35/393ivo://CDS.VizieR/J/A+A/35/393doi:10.26093/cds/vizier.30350393CDSKatgert J.K.2012-11-13T12:37:01Z2001-07-14T10:30:32ZCDS support team

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

cds-question@unistra.frradio-sourcessurveysA radio survey has been made of an area centered at 01h 03min +29{deg}, using the Westerbork telescope at 1415MHz. The completeness limit of the survey is 7mJy. Additional observations have been made at 610MHz. The Lick 120" telescope has been used to obtain deep (O98-O2 emulsion) plates to serve as an optical counterpart. A catalogue is presented of 58 sources found in the survey. 53 of these comprise a complete sample. 31 sources of the complete sample lie in areas of which Lick plates were taken. Of the sources in Lick plates areas, 11 could be identified with galaxies and 3 with possible QSO's, yielding an identification percentage of 46. For the other 22 sources an identification programme was carried out using Palomar Sky Survey prints and other large 48" Schmidt plates: three of these sources could be identified with galaxies and two with possible QSO's. The survey was also used to derive source counts and a spectral index distribution. The source counts agree well with those derived for an earlier survey. The spectral index distribution has a mean of 0.52 and a width of 0.39. the explanation for the flatter spectra is not clear but might possibly lie in another source population that begins to dominate the results at low flux densities.1974A&A....35..393Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/35/393CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/19 : Catalogues from a deep 327 MHz Westerbork Survey (Wieringa 1991-93)VIII/62 : The Westerbork Northern Sky Survey (Leiden, 1998)J/A+AS/58/1 : 1412 MHz catalogue of Westerbork survey. I. (Windhorst+, 1984)J/A+AS/58/39 : 1412 MHz catalogue of Westerbork survey. II (Windhorst+, 1984)J/A+AS/124/259 : Westerbork Northern Sky Survey I. (Rengelink+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/35/393https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/35/393http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/35/393https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/35/393https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/35/393http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/35/393GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/35/393/table4 (The catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/35/393/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/35/393/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/35/393/table4?GETtext/xml+votable180.050000true15.34518329.47965090.0055555555555555565/547 6/2202 2212-22134.0419025326745717e-25 9.37588818922134e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/35/393?format=asciiRadiodefaultJ/A+A/35/393/table4The cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_2W[+] +: source not in the complete samplemeta.notechar2WSource name, 2W HHMM+DDWNA (1)meta.id;meta.maincharRA1950Right ascension (1950.0)pos.eq.ra;meta.maine_RA1950rms uncertainty on RAsstat.error;pos.eq.rafloatDE1950Declination (1950.0)pos.eq.dec;meta.maine_DE1950rms uncertainty on DEarcsecstat.error;pos.eq.decfloatS1415MHz1415 MHz flux density (2)mJyphot.flux.density;em.radio.750-1500MHzfloate_S1415MHzrms uncertainty on S1415MHzmJystat.errorfloataS1415MHzCorrection for attenuation, due to the 1415 MHz primary beam pattern.mJyinstr.paramfloataS1415MHz2? Second correction for attenuation (3)mJyinstr.paramfloatnullableaS1415MHz3? Third correction for attenuation (3)mJyinstr.paramfloatnullableaS1415MHz4? Fourth correction for attenuation (3)mJyinstr.paramfloatnullableS610MHz? 610 MHz flux densitymJyphot.flux.density;em.radio.400-750MHzfloatnullablee_S610MHz? rms uncertainty on S610MHzmJystat.errorfloatnullableaS610MHz? Correction for attenuation due to the 610 MHz primary beam antenna patternmJyinstr.paramfloatnullableSp-Index? Spectral index {alpha} from 1415 to 610 MHz (S({nu})~{nu}^-{alpha})spect.indexfloatnullableWeight? Weight with which the source enters the spectral index distribution, normalized to a sample size of fiftystat.weight;spect.indexfloatnullableRes[UR] Information on resolution: U = not noticeably resolved, R = noticeably resolvedpos.angResolutioncharExt? Angular extent of the resolved sourcearcsecphys.angSizeintnullablePA? Position angle of the resolution, measured from North through Eastdegpos.posAngintnullablen_PA[+] +: possible core-halo sourcemeta.notecharPA2? Second position angledegpos.posAngintnullableTypeType of identification (GAL or QSO)src.classcharu_Type[?] Uncertainty flag on Typemeta.notecharNote[+] +: identification was obtained from one of the Lick platesmeta.notecharmag? Estimate of the magnitude of the identification (4)magphot.magfloatnullableRemRemarksmeta.notechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed