J/MNRAS/460/2385ivo://CDS.VizieR/J/MNRAS/460/2385doi:10.26093/cds/vizier.74602385CDSWilliams W.L.van Weeren R.J.Rottgering H.J.A.Best P.Dijkema T.J.,de Gasperin F.Hardcastle M.J.Heald G.Prandoni I.Sabater J.,Shimwell T.W.Tasse C.van Bemmel I.M.Bruggen M.Brunetti G.,Conway J.E.Ensslin T.Engels D.Falcke H.Ferrari C.Haverkorn M.,Jackson N.Jarvis M.J.Kapinska A.D.Mahony E.K.Miley G.K.,Morabito L.K.Morganti R.Orru E.Retana-Montenegro E.Sridhar S.S.,Toribio M.C.White G.J.Wise M.W.Zwart J.T.L.2024-08-16T20:17:18Z2017-12-19T15:10:59ZCDS support team

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

cds-question@unistra.frsurveysradio-galaxiesradio-continuum-emissionWe present the first wide area (19 deg^2^), deep (~=120-150 {mu}Jy/beam), high-resolution (5.6x7.4-arcsec) LOFAR High Band Antenna image of the Bootes field made at 130-169MHz. This image is at least an order of magnitude deeper and 3-5 times higher in angular resolution than previously achieved for this field at low frequencies. The observations and data reduction, which includes full direction-dependent calibration, are described here. We present a radio source catalogue containing 6276 sources detected over an area of 19deg^2^, with a peak flux density threshold of 5{sigma}. As the first thorough test of the facet calibration strategy, introduced by van Weeren et al. (2016ApJS..223....2V), we investigate the flux and positional accuracy of the catalogue. We present differential source counts that reach an order of magnitude deeper in flux density than previously achieved at these low frequencies, and show flattening at 150-MHz flux densities below 10 mJy associated with the rise of the low flux density star-forming galaxies and radio-quiet AGN.2016MNRAS.460.2385Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/460/2385CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/123/1784 : 1.4 GHz imaging of the Bootes field (de Vries+, 2002)J/AJ/127/213 : LALA Bootes field X-ray source catalog (Wang+, 2004)J/AJ/130/923 : Faint radio sources in the NOAO Bootes field (Wrobel+, 2005)J/ApJ/634/L1 : 16{mu}m sources in the NOAO Bootes field (Kasliwal+, 2005)J/ApJS/161/9 : X-ray survey of the NDWFS Bootes field (Kenter+, 2005)J/ApJ/641/140 : Optical counterparts in NDWFS Bootes field (Brand+, 2006)J/A+A/535/A38 : Observations of NOAO Bootes field at 153MHz (Intema+, 2011)J/ApJ/772/26 : AGN with WISE. II. The NDWFS Bootes field (Assef+, 2013)J/A+A/549/A55 : GMRT 153MHz (2m) Radio Mini Survey I. (Williams+, 2013)J/MNRAS/450/1477 : VLA 352MHz image of the Bootes field. I. (Coppejans+, 2015)J/ApJ/817/119 : Spitzer/IRAC variability survey of Bootes fieldJ/ApJ/793/82 : LOFAR Bootes and 3C295 field sources (van Weeren+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/460/2385https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/460/2385http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/460/2385https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/460/2385https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/460/2385http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/460/2385GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/460/2385/table2 (LOFAR 150-MHz source catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/460/2385/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/460/2385/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/460/2385/table2?GETtext/xml+votable180.050000true220.2607735.512090.0055555555555555565/2286-2287 2628-2629 6/9133 9135 9139 9142-9143 9186 9192 9194 10501 10503 10520-10521 10524-10525 10560 105629.939104750406538e-26 9.939104750406538e-26https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/460/2385?format=asciiRadiodefaultJ/MNRAS/460/2385/table2LOFAR 150-MHz source cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameLOFAR name (JHHMMSS.ss+DDMMSS.s) (LOFAR_name)meta.id;meta.maincharRAJ2000Flux-weighted right ascension (J2000) (RA)degpos.eq.ra;meta.maine_RAJ2000rms uncertainty on RAdeg (E_RA)degstat.error;pos.eq.radoubleDEJ2000Flux-weighted declination (J2000) (DEC)degpos.eq.dec;meta.maine_DEJ2000rms uncertainty on DEdeg (E_DEC)degstat.error;pos.eq.decdoubleSintIntegrated source flux density at 150MHz (Total_flux)mJyphot.flux.density;em.radio.100-200MHzfloate_Sintrms uncertainty on Sint (E_Total_flux)mJystat.errorfloatFpeakPeak flux density at 150MHz (Peak_flux)mJy/beamphot.flux.density;em.radio.100-200MHzfloate_Fpeakrms uncertainty on Fpeak (E_Peak_flux)mJy/beamstat.errorfloatFsmearApproximate correction factor to the peak flux density to account for bandwidth- and time-smearing (Fsmear)instr.paramfloatrmsLocal rms noise used for the source detection (rms)mJy/beamstat.stdev;instr.det.noisefloatNgaussNumber of Gaussian components (Ngauss)meta.numberintResolved[0/1] flag indicating the resolved parametrization of the source (Flag_resolved) (1)meta.codeintBadfit[0/1] a bad Gaussian fit and so no parameters derived from the Gaussian fit (Flag_badfit)meta.codeintEdge[0/1] a source on the edge of the mosaic such that some of the flux is missing (Flag_edge)meta.codeintBad[0/1] a source has been successfully fit with Gaussians but visual inspection indicates a likely poor fit or other problem (Flag_bad)meta.codeintArtefact[0/2] a source is identified as an artefact (Flag_artefact) (2)meta.codeintMerged[0/1] a large source whose source components have been manually merged into single sources (Flag_merged)meta.codeint