Bootes field LOFAR 150-MHz observations

DOI

We 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.

Cone search capability for table J/MNRAS/460/2385/table2 (LOFAR 150-MHz source catalogue)

Identifier
DOI http://doi.org/10.26093/cds/vizier.74602385
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/460/2385
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/460/2385
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/460/2385
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/460/2385
Provenance
Creator Williams 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.
Publisher CDS
Publication Year 2017
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; Interstellar medium; Natural Sciences; Observational Astronomy; Physics