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The MWA GLEAM 4 Jy sample; a new large, bright radio source sample at 151 MHz

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Open access
Authors
Jackson, C.
Franzen, T.
Seymour, N.
White, S.
Murphy, T.
Sadler, E.
Callingham, J.
Hunstead, R.
Hughes, J.
Wall, J.
Bell, M.
Dwarakanath, K.
For, B.
Gaensler, B.
Hancock, P.
Hindson, L.
Hurley-Walker, N.
Johnston-Hollitt, M.
Kapínska, A.
Lenc, E.
McKinley, B.
Morgan, J.
Offringa, A.
Procopio, P.
Staveley-Smith, L.
Wayth, Randall
Wu, C.
Zheng, Q.
Date
2015
Type
Journal Article

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Jackson, C. and Franzen, T. and Seymour, N. and White, S. and Murphy, T. and Sadler, E. and Callingham, J. et al. 2015. The MWA GLEAM 4 Jy sample; a new large, bright radio source sample at 151 MHz, in Conference Proceedings: The many facets of radio galaxies, Oct 20-23 2015. Bologna: POS.
Source Title
Proceedings of Science
School
Department of Electrical and Computer Engineering
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This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by-nc-nd/4.0/

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Abstract

This paper outlines how the new GaLactic and Extragalactic All-sky MWA Survey (GLEAM, Wayth et al. 2015), observed by the Murchison Widefield Array covering the frequency range 72 231 MHz, allows identification of a new large, complete, sample of more than 2000 bright extragalactic radio sources selected at 151 MHz. With a flux density limit of 4 Jy this sample is significantly larger than the canonical fully-complete sample, 3CRR (Laing, Riley & Longair 1983). In analysing this small bright subset of the GLEAM survey we are also providing a firstuser check of the GLEAM catalogue ahead of its public release (Hurley-Walker et al. in prep). Whilst significant work remains to fully characterise our new bright source sample, in time it will provide important constraints to evolutionary behaviour, across a wide redshift and intrinsic radio power range, as well as being highly complementary to results from targeted, small area surveys.