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ASKAP Project AS110 - The Rapid ASKAP Continuum Survey: cataloguing the sky at 1367.5 MHz and the second data release of RACS-mid

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Title ASKAP Project AS110 - The Rapid ASKAP Continuum Survey: cataloguing the sky at 1367.5 MHz and the second data release of RACS-mid
 
Creator Stefan Duchesne
 
Subject Cosmology and extragalactic astronomy
Astronomical sciences not elsewhere classified
 
Description Data products associated with the release of the Stokes I catalogue (Duchesne+2023b) from the Rapid ASKAP Continuum Survey (RACS) at 1367.5 MHz (RACS-mid). This work took the images of the tiles associated with RACS-mid survey (see Duchesne+2023a) at 1367.5 MHz (144 MHz bandwidth), convolved them to a common resolution, and mosaicked them with neighbouring images to obtain near-uniform sensitivity images covering the sky up to declination +49 degrees. Released are the 1493 Stokes I images constructed in this manner, and the resulting source and component catalogue covering the region. Catalogues were made by running PyBDSF (see Mohan and Rafferty: 2015ascl.soft02007M) over each mosaiced tile image. These tile catalogues were combined together and duplicates removed. An additional set of images are produced at a fixed resolution of 25" times 25", to match the RACS catalogue at 887.5 MHz (RACS-low, Hale+2021) with coverage up to declination +30 degrees. An auxiliary catalogue is produced with these 25" images intended for simple cross-matching to the RACS-low catalogue or for users who required a position-independent resolution. See Duchesne+2023b for details on the individual catalogues.
 
Publisher CSIRO
 
Contributor Joe Grundy
George Heald
Emil Lenc
James Leung
David McConnell
Tara Murphy
Joshua Pritchard
Kovi Rose
Alec Thomson
Yuanming Wang
Ziteng Wang
Matthew Whiting
 
Date 2023-11-20
 
Type —
 
Format —
 
Identifier csiro:60981
 
Language —
 
Coverage —
 
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