GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey – I. A low-frequency extragalactic catalogue

Abstract Using the Murchison Widefield Array (MWA), the low-frequency Square Kilometre Array precursor located in Western Australia, we have completed the GaLactic and Extragalactic All-sky MWA (GLEAM) survey, and present the resulting extragalactic catalogue, utilizing the first year of observations. The catalogue covers 24 831 square degrees, over declinations south of +30° and Galactic latitudes outside 10° of the Galactic plane, excluding some areas such as the Magellanic Clouds. It contains 307 455 radio sources with 20 separate flux density measurements across 72–231 MHz, selected from a time- and frequency-integrated image centred at 200 MHz, with a resolution of ≈2 arcmin. Over the catalogued region,…

• NA
  National Aeronautics and Space Administration
• CI
  California Institute of Technology
• NC
  National Computational Infrastructure
• AA
  Astronomy Australia Limited
• NR
  National Radio Astronomy Observatory
• AG
  Australian Government
• CS
  Commonwealth Scientific and Industrial Research Organisation
• CU
  Curtin University of Technology
• JP
  Jet Propulsion Laboratory
• SA
  Science and Technology Facilities Council

  Award: ST/M001008/1
• NC
  National Cancer Institute