GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey II: Galactic Plane $345^\circ < l < 67^\circ$, $180^\circ < l < 240^\circ
This work makes available a further 2,860deg$^2$ of the GLEAM survey, covering half of the accessible Galactic Plane, across twenty frequency bands sampling $72-231$MHz, with resolution $4'-2'$. Unlike previous GLEAM data releases, we used multi-scale clean to better deconvolve large-scale...
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Zusammenfassung: | This work makes available a further 2,860deg$^2$ of the GLEAM survey,
covering half of the accessible Galactic Plane, across twenty frequency bands
sampling $72-231$MHz, with resolution $4'-2'$. 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 $\approx10-20$mJy beam$^{-1}$ and position accuracy better than $2"$. The
catalogue has a completeness of 50% at $\approx120$mJy, and a reliability of
99.86%. It covers Galactic latitudes $1^\circ\leq|b|\leq10^\circ$ toward 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 VO server and SkyView. |
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DOI: | 10.48550/arxiv.1911.08127 |