GaLactic and Extragalactic All-sky Murchison Widefield Array eXtended (GLEAM-X) survey II: Second Data Release

K. Ross, N. Hurley-Walker, T. J. Galvin, B. Venville, S. W. Duchesne, J. Morgan, T. An, G. Gurkan, P. J. Hancock, G. Heald, M. Johnston-Hollitt, S. V. White

Research output: Contribution to journalArticlepeer-review

5 Downloads (Pure)

Abstract

We present the second data release for the GaLactic and Extragalactic All-sky Murchison Widefield Array eXtended (GLEAM-X) survey. This data release is an area of 12 892-deg 2 around the South Galactic Pole region covering 20 h40 m ≤ RA ≤ 6 h40 m, -90 ∘ ≤ Dec ≤ +30 ∘ . Observations were taken in 2020 using the Phase-II configuration of the Murchison Widefield Array (MWA) and covering a frequency range of 72–231 MHz with twenty frequency bands. We produce a wideband source finding mosaic over 170–231 MHz with a median root-mean-squared noise of 1.5+1.5−0.5 mJy beam −1 . We present a catalogue of 624 866 components, including 562 302 components which are spectrally fit. This catalogue is 98% complete at 50 mJy, and a reliability of 98.7% at a 5 σ level, consistent with expectations for this survey. The catalogue is made available via Vizier, and the PASA datastore and accompanying mosaics for this data release are made available via AAO Data Central and SkyView.
Original languageEnglish
Article numbere054
Pages (from-to)1-23
Number of pages23
JournalPublications of the Astronomical Society of Australia
Volume41
Early online date24 Sept 2024
DOIs
Publication statusE-pub ahead of print - 24 Sept 2024

Keywords

  • astro-ph.GA

Fingerprint

Dive into the research topics of 'GaLactic and Extragalactic All-sky Murchison Widefield Array eXtended (GLEAM-X) survey II: Second Data Release'. Together they form a unique fingerprint.

Cite this