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Search: onr:"swepub:oai:research.chalmers.se:a98bb2dd-6c85-496b-8465-6df769bb9a50" > LOFAR 150-MHz obser...

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  • Williams, W. L.Universiteit Leiden (UL),Leiden University (UL),Netherlands Institute for Radio Astronomy (ASTRON),University of Hertfordshire (author)

LOFAR 150-MHz observations of the Bootes field: catalogue and source counts

  • Article/chapterEnglish2016

Publisher, publication year, extent ...

  • 2016-05-29
  • Oxford University Press (OUP),2016
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:a98bb2dd-6c85-496b-8465-6df769bb9a50
  • https://research.chalmers.se/publication/243682URI
  • https://doi.org/10.1093/mnras/stw1056DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • We present the first wide area (19 deg(2)), deep (a parts per thousand 120-150 mu Jy beam(-1)), high-resolution (5.6 x 7.4 arcsec) LOFAR High Band Antenna image of the Bootes field made at 130-169 MHz. 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 6 276 sources detected over an area of 19 deg(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., 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.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • van Weeren, R. J.Harvard-Smithsonian Center for Astrophysics (author)
  • Rottgering, H.Universiteit Leiden (UL),Leiden University (UL) (author)
  • Best, P.Royal Observatory (author)
  • Dijkema, T. J.Netherlands Institute for Radio Astronomy (ASTRON) (author)
  • De Gasperin, F.Universität Hamburg,University of Hamburg (author)
  • Hardcastle, M. J.University of Hertfordshire (author)
  • Heald, G.Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Radio Astronomy (ASTRON) (author)
  • Prandoni, I.Istituto nazionale di astrofisica (INAF) (author)
  • Sabater, J.Royal Observatory (author)
  • Shimwell, T. W.Universiteit Leiden (UL),Leiden University (UL) (author)
  • Tasse, C.Paris Diderot University, France (author)
  • van Bemmel, I.Joint Institute for VLBI in Europe (JIVE) (author)
  • Brüggen, M.Universität Hamburg,University of Hamburg (author)
  • Brunetti, G.Istituto nazionale di astrofisica (INAF) (author)
  • Conway, John,1963Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jconway (author)
  • Enßlin, T.A.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG) (author)
  • Engels, D.Universität Hamburg,University of Hamburg (author)
  • Falcke, H.Radboud Universiteit,Radboud University,Netherlands Institute for Radio Astronomy (ASTRON) (author)
  • Ferrari, C.Observatoire de la Cote d'Azur (author)
  • Haverkorn, M.Radboud Universiteit,Radboud University,Universiteit Leiden (UL),Leiden University (UL) (author)
  • Jackson, N.University of Manchester (author)
  • Jarvis, M. J.University Of Oxford,University of the Western Cape (author)
  • Kapinska, A. D.University of Portsmouth,University of Western Australia,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO) (author)
  • Mahony, E.Netherlands Institute for Radio Astronomy (ASTRON) (author)
  • Miley, G. K.Universiteit Leiden (UL),Leiden University (UL) (author)
  • Morabito, L. K.Universiteit Leiden (UL),Leiden University (UL) (author)
  • Morganti, R.Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen (author)
  • Orru, E.Netherlands Institute for Radio Astronomy (ASTRON) (author)
  • Retana-Montenegro, E.Universiteit Leiden (UL),Leiden University (UL) (author)
  • Sridhar, S. S.Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen (author)
  • Toribio, M. C.Universiteit Leiden (UL),Leiden University (UL) (author)
  • White, G. J.STFC Rutherford Appleton Laboratory,Open University (author)
  • Wise, M. W.Netherlands Institute for Radio Astronomy (ASTRON) (author)
  • Zwart, J. T LUniversity of the Western Cape,University of Cape Town (author)
  • Universiteit Leiden (UL)Netherlands Institute for Radio Astronomy (ASTRON) (creator_code:org_t)

Related titles

  • In:Monthly Notices of the Royal Astronomical Society: Oxford University Press (OUP)460:3, s. 2385-24120035-87111365-2966

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