J/MNRAS/390/741ivo://CDS.VizieR/J/MNRAS/390/741doi:10.26093/cds/vizier.73900741CDSGeorge S.J.Stevens I.R.2024-07-07T20:17:14Z2009-12-08T14:02:37ZCDS support team

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

cds-question@unistra.frradio-sourcessurveysWe present results of a 150MHz survey of a field centred on {epsilon} Eridani, undertaken with the Giant Metrewave Radio Telescope (GMRT). The survey covers an area with a diameter of ~2{deg}, has a spatial resolution of ~30arcsec and a noise level of {sigma}=3.1mJy at the pointing centre. These observations provide a deeper and higher resolution view of the 150MHz radio sky than the 7C survey (although the 7C survey covers a much larger area). A total of 113 sources were detected, most are point-like, but 20 are extended. We present an analysis of these sources, in conjunction with the National Radio Astronomy Observatory (NRAO) Very Large Array (VLA) telescope Sky Survey (NVSS) (at 1.4GHz) and VLA Low-frequency Sky Survey (VLSS) (at 74MHz). This process allowed us to identify five Ultra-Steep Spectrum (USS) radio sources that are candidate high-redshift radio galaxies (HzRGs). In addition, we have derived the dN/dS distribution for these observations and compare our results with other low-frequency radio surveys.2008MNRAS.390..741Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/390/741CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/390/741https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/390/741http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/390/741https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/390/741https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/390/741http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/390/741GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/390/741/table1 (The complete GMRT 150MHz source catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/390/741/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/390/741/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/390/741/table1?GETtext/xml+votable180.050000true52.135625-9.44705560.0055555555555555566/36691 36694-36697 36699-36702https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/390/741?format=asciiRadiodefaultJ/MNRAS/390/741/table1The complete GMRT 150MHz source cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[GS2008]GMRT source name (JHHMMSS.s+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainBpeakPeak brightness at 150MHz (in mJy/beam)mJyphot.flux.density;em.radio.100-200MHzfloate_Bpeak? 1sigma error on Bpeak for point sourcesmJystat.errorfloatnullableS150? Flux density at 150MHz (only given for resolved sources)mJyphot.flux.density;em.radio.100-200MHzfloatnullablee_S150? 1sigma error on S150MHz for resolved onesmJystat.errorfloatnullablen_S150[*] Note on S150MHz (1)meta.notecharthetaAngular sizearcsecphys.angSizefloatSNVSS? NVSS 1.4GHz peak fluxmJyphot.flux.density;em.radio.750-1500MHzfloatnullablen_SNVSS[+] Note on SNVSS (1)meta.notecharSVLSS? VLSS 74MHz peak fluxmJyphot.flux.density;em.radio.20-100MHzintnullableSpSPECFIND of radio surveys (Vollmer et al., Cat. VIII/85)meta.ref.urlcharRDetails from NVSS and VLSSmeta.ref.urlchar