Search: onr:"swepub:oai:research.chalmers.se:c25565de-0b51-41d3-8936-b45316b08206" >
LOFAR/H-ATLAS: a de...
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Hardcastle, M. J.University of Hertfordshire
(author)
LOFAR/H-ATLAS: a deep low-frequency survey of the Herschel-ATLAS North Galactic Pole field
- Article/chapterEnglish2016
Publisher, publication year, extent ...
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2016-07-20
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Oxford University Press (OUP),2016
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:c25565de-0b51-41d3-8936-b45316b08206
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https://doi.org/10.1093/mnras/stw1763DOI
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https://research.chalmers.se/publication/244405URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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We present Low-Frequency Array (LOFAR) High-Band Array observations of the Herschel-ATLAS North Galactic Pole survey area. The survey we have carried out, consisting of four pointings covering around 142 deg(2) of sky in the frequency range 126-173 MHz, does not provide uniform noise coverage but otherwise is representative of the quality of data to be expected in the planned LOFAR wide-area surveys, and has been reduced using recently developed 'facet calibration' methods at a resolution approaching the full resolution of the data sets (similar to 10 x 6 arcsec) and an rms off-source noise that ranges from 100 mu Jy beam(-1) in the centre of the best fields to around 2 mJy beam(-1) at the furthest extent of our imaging. We describe the imaging, cataloguing and source identification processes, and present some initial science results based on a 5 sigma source catalogue. These include (i) an initial look at the radio/far-infrared correlation at 150 MHz, showing that many Herschel sources are not yet detected by LOFAR; (ii) number counts at 150 MHz, including, for the first time, observational constraints on the numbers of star-forming galaxies; (iii) the 150-MHz luminosity functions for active and star-forming galaxies, which agree well with determinations at higher frequencies at low redshift, and show strong redshift evolution of the star-forming population; and (iv) some discussion of the implications of our observations for studies of radio galaxy life cycles.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Gurkan, G.University of Hertfordshire
(author)
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van Weeren, R. J.Harvard-Smithsonian Center for Astrophysics
(author)
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Williams, W. L.University of Hertfordshire
(author)
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Best, P. N.Royal Observatory
(author)
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De Gasperin, F.Universiteit Leiden (UL),Leiden University (UL)
(author)
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Rafferty, D.Universität Hamburg,University of Hamburg
(author)
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Read, S. C.University of Hertfordshire
(author)
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Sabater, J.Royal Observatory
(author)
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Shimwell, T. W.Universiteit Leiden (UL),Leiden University (UL)
(author)
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Smith, D. J. B.University of Hertfordshire
(author)
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Tasse, C.Paris Diderot University, France
(author)
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Bourne, N.Royal Observatory
(author)
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Brienza, M.Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Radio Astronomy (ASTRON)
(author)
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Brüggen, M.Universität Hamburg,University of Hamburg
(author)
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Brunetti, G.Istituto nazionale di astrofisica (INAF)
(author)
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Chyz̊y, K.T.Jagiellonian University in Kraków, Poland
(author)
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Conway, John,1963Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jconway
(author)
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Dunne, L.Cardiff University,Royal Observatory
(author)
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Eales, S.Jagiellonian University in Kraków, Poland
(author)
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Maddox, S. J.Royal Observatory,Cardiff University
(author)
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Jarvis, M. J.University Of Oxford,University of the Western Cape
(author)
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Mahony, E.ARC Centre of Excellence for All-sky Astrophysics (CAASTRO),The University of Sydney
(author)
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Morganti, R.Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen
(author)
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Prandoni, I.Istituto nazionale di astrofisica (INAF)
(author)
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Rottgering, H.Universiteit Leiden (UL),Leiden University (UL)
(author)
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Valiante, E.Cardiff University
(author)
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White, G. J.Open University,STFC Rutherford Appleton Laboratory
(author)
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University of HertfordshireHarvard-Smithsonian Center for Astrophysics
(creator_code:org_t)
Related titles
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In:Monthly Notices of the Royal Astronomical Society: Oxford University Press (OUP)462:2, s. 1910-19360035-87111365-2966
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Hardcastle, M. J ...
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Gurkan, G.
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van Weeren, R. J ...
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Williams, W. L.
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Best, P. N.
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De Gasperin, F.
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Rafferty, D.
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Read, S. C.
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Sabater, J.
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Shimwell, T. W.
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Smith, D. J. B.
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Tasse, C.
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Bourne, N.
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Brienza, M.
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Brüggen, M.
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Brunetti, G.
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Chyz̊y, K.T.
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Conway, John, 19 ...
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Dunne, L.
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Eales, S.
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Maddox, S. J.
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Jarvis, M. J.
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Mahony, E.
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Morganti, R.
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Prandoni, I.
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Rottgering, H.
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Valiante, E.
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White, G. J.
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