The Rapid ASKAP Continuum Survey V: Cataloguing the sky at 1 367.5 MHz and the second data release of RACS-mid
SW Duchesne, JA Grundy, GH Heald… - Publications of the …, 2024 - cambridge.org
Publications of the Astronomical Society of Australia, 2024•cambridge.org
The Australian SKA Pathfinder (ASKAP) has surveyed the sky at multiple frequencies as part
of the Rapid ASKAP Continuum Survey (RACS). The first two RACS observing epochs, at
887.5 (RACS-low) and 1 367.5 (RACS-mid) MHz, have been released (McConnell, et al.
2020, PASA, 37, e048; Duchesne, et al. 2023, PASA, 40, e034). A catalogue of radio
sources from RACS-low has also been released, covering the sky south of declination), and
we estimate the catalogue to be 95% complete for sources above 2 mJy. With the primary …
of the Rapid ASKAP Continuum Survey (RACS). The first two RACS observing epochs, at
887.5 (RACS-low) and 1 367.5 (RACS-mid) MHz, have been released (McConnell, et al.
2020, PASA, 37, e048; Duchesne, et al. 2023, PASA, 40, e034). A catalogue of radio
sources from RACS-low has also been released, covering the sky south of declination), and
we estimate the catalogue to be 95% complete for sources above 2 mJy. With the primary …
The Australian SKA Pathfinder (ASKAP) has surveyed the sky at multiple frequencies as part of the Rapid ASKAP Continuum Survey (RACS). The first two RACS observing epochs, at 887.5 (RACS-low) and 1 367.5 (RACS-mid) MHz, have been released (McConnell, et al. 2020, PASA, 37, e048; Duchesne, et al. 2023, PASA, 40, e034). A catalogue of radio sources from RACS-low has also been released, covering the sky south of declination ), and we estimate the catalogue to be 95% complete for sources above 2 mJy. With the primary catalogue, we also provide two auxiliary catalogues. The first is a fixed-resolution, 25-arcsec catalogue approximately matching the sky coverage of the RACS-low catalogue. This 25-arcsec catalogue is constructed identically to the primary catalogue, except images are convolved to a less-sensitive 25-arcsec angular resolution. The second auxiliary catalogue is designed for time-domain science and is the concatenation of source lists from the original RACS-mid images with no additional convolution, mosaicking, or de-duplication of source entries to avoid losing time-variable signals. All three RACS-mid catalogues, and all RACS data products, are available through the CSIRO ASKAP Science Data Archive (https://research.csiro.au/casda/).
Cambridge University Press
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