University of Hertfordshire

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From the same journal

By the same authors

Documents

  • Kenneth J Duncan
  • J. Sabater
  • H. J. A. Röttgering
  • M. J. Jarvis
  • P. N. Best
  • J. R. Callingham
  • R. Cochrane
  • J. H. Croston
  • B. Mingo
  • L. Morabito
  • D. Nisbet
  • I. Prandoni
  • T. W. Shimwell
  • C. Tasse
  • G. J. White
  • W. L. Williams
  • L. Alegre
  • K. T. Chyży
  • G. Gürkan
  • M. Hoeft
  • R. Kondapally
  • A. P. Mechev
  • G. K. Miley
  • D. J. Schwarz
  • R. J. van Weeren
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Original languageEnglish
JournalAstronomy & Astrophysics
Journal publication date19 Nov 2018
Early online date19 Nov 2018
DOIs
Publication statusE-pub ahead of print - 19 Nov 2018

Abstract

The LOFAR Two-metre Sky Survey (LoTSS) is a sensitive, high-resolution 120-168 MHz survey of the Northern sky. The LoTSS First Data Release (DR1) presents 424 square degrees of radio continuum observations over the HETDEX Spring Field (10h45m00s $ 0.15$) of 7.9%. We also find that, at a given redshift, there is no strong trend in photo-$z$ quality as a function of radio luminosity. However there are strong trends as a function of redshift for a given radio luminosity, a result of selection effects in the spectroscopic sample and/or intrinsic evolution within the radio source population. Additionally, for the sample of sources in the LoTSS First Data Release with optical counterparts, we present rest-frame optical and mid-infrared magnitudes based on template fits to the consensus photometric (or spectroscopic when available) redshift.

Notes

16 figures, 1 table and 18 pages. This paper is part of the LOFAR surveys Data Release 1 and has been accepted for publication in a special edition of A&A that will appear in Feb 2019, Volume 622. The catalogues and images from the data release will be publicly available at http://www.lofar-surveys.org upon publication of the volume. Reproduced with permission from Astronomy & Astrophysics. © 2019 ESO.

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