• DOI:10.1017/pasa.2019.37
• Corpus ID: 208158075

GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey II: Galactic plane 345° < l < 67°, 180° < l < 240°

@article{HurleyWalker2019GaLacticAE,
  title={GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey II: Galactic plane 345° < l < 67°, 180° < l < 240°},
  author={Natasha Hurley-Walker and Paul J. Hancock and Thomas M. O. Franzen and Joseph R. Callingham and Andr{\'e} R. Offringa and Luke Hindson and C. Wu and Martin E. Bell and B.-Q. For and Bryan M. Gaensler and Melanie Johnston-Hollitt and Anna D. Kapińska and John S. Morgan and Tara Murphy and Benjamin McKinley and Pietro Procopio and Lister Staveley-Smith and Randall B. Wayth and Qinghua Zheng},
  journal={Publications of the Astronomical Society of Australia},
  year={2019},
  volume={36}
}

• N. Hurley-Walker, P. Hancock, +16 authors Q. Zheng
• Published 19 November 2019
• Physics
• Publications of the Astronomical Society of Australia

Abstract This work makes available a further $2\,860~\text{deg}^2$ of the GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey, covering half of the accessible galactic plane, across 20 frequency bands sampling 72–231 MHz, with resolution $4\,\text{arcmin}-2\,\text{arcmin}$. Unlike previous GLEAM data releases, we used multi-scale CLEAN to better deconvolve large-scale galactic structure. For the galactic longitude ranges $345^\circ < l < 67^\circ$, $180^\circ < l < 240^\circ$, we provide a compact source catalogue of 22 037 components selected from a 60-MHz bandwidth image centred at 200 MHz, with RMS noise $\approx10-20\,\text{mJy}\,\text{beam}^{-1}$ and position accuracy better than 2 arcsec. The catalogue has a completeness of 50% at ${\approx}120\,\text{mJy}$, and a reliability of 99.86%. It covers galactic latitudes $1^\circ\leq|b|\leq10^\circ$ towards the galactic centre and $|b|\leq10^\circ$ for other regions, and is available from Vizier; images covering $|b|\leq10^\circ$ for all longitudes are made available on the GLEAM Virtual Observatory (VO).server and SkyView.