GaLactic and Extragalactic All-sky Murchison Widefield Array survey eXtended (GLEAM-X) III: Galactic Plane
S. Mantovanini, N. Hurley-Walker, K. Ross, S. W. Duchesne, G. Anderson, and T. J. Galvin

TL;DR
The GLEAM-X survey's third data release provides extensive low-frequency radio observations of the Galactic Plane, combining new and previous data to produce high-resolution images and a large source catalogue for astrophysical research.
Contribution
This work presents the first combined wide-band, high-resolution radio survey of the Galactic Plane at 72-231 MHz, enhancing sensitivity and source detection over previous surveys.
Findings
98,207 sources detected across the surveyed region
Achieved 90% completeness at 50 mJy flux density
Source position accuracy within 1 arcsecond
Abstract
We present the third data release for the Galactic and Extragalactic All-Sky Murchison Widefield Array eXtended (GLEAM-X) survey, covering = 3800 deg2 of the southern Galactic Plane (GP) with \ang{233} < l < \ang{44} and |b| < \ang{11} across a frequency range of 72 - 231 MHz divided into 20 sub-bands. GLEAM-X observations were taken using the "extended" Phase-II configuration of the Murchison Widefield Array (MWA), which features baselines ranging from approximately 12 m to 5 km. This configuration limits sensitivity to the diffuse structure of the GP, with an angular resolution range of about 45'' to 2'. To achieve lower noise levels while being sensitive to a wide range of spatial scales (45''- \ang{15}), we combined these observations with the previous Galactic and Extragalactic All-Sky Murchison Widefield Array (GLEAM) survey. For the area covered, we provide images spanning the…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsRadio Astronomy Observations and Technology · Galaxies: Formation, Evolution, Phenomena · Astrophysics and Cosmic Phenomena
