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

C A Jackson, T M O Franzen, N Seymour, S V White, Tara Murphy, E M Sadler, J R Callingham, R W Hunstead, J Hughes, J V Wall, M E Bell, K S Dwarakanath, B-Q For, B M Gaensler, P J Hancock, L Hindson, N Hurley-Walker, M Johnston-Hollitt, A D Kapinska, E LencB McKinley, J Morgan, A R Offringa, P Procopio, L Staveley-Smith, R B Wayth, C Wu, Q Zheng

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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 first user 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.
    Original languageEnglish
    Publication statusPublished - 20 Oct 2015
    EventThe Many Facests of Extragalactiv Radio Surveys: Towards New Scientific Challenges - CNR RESEARCH AREA, 101 VIA GOBETTI, Bologne, Italy
    Duration: 20 Oct 201523 Oct 2015

    Conference

    ConferenceThe Many Facests of Extragalactiv Radio Surveys: Towards New Scientific Challenges
    Country/TerritoryItaly
    CityBologne
    Period20/10/1523/10/15

    Keywords

    • astro-ph.GA
    • astro-ph.CO

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