The XXL Survey XVIII. ATCA 2.1 GHz radio source catalogue and source counts for the XXL-South field

Abstract

The 2.1 GHz radio source catalogue of the 25 deg${}^2$ ultimate XMM extragalactic survey south (XXL-S) field, observed with the Australia Telescope Compact Array (ATCA), is presented. The final radio mosaic achieved a resolution of $\sim$$4.8"$ and a median rms noise of $\sigma \approx 41$ $\mu$Jy/beam. To date, this is the largest area radio survey to reach this flux density level. A total of 6350 radio components above 5$\sigma$ are included in the component catalogue, 26.4% of which are resolved. Of these components, 111 were merged together to create 48 multiple-component radio sources, resulting in a total of 6287 radio sources in the source catalogue, 25.9% of which were resolved. A survival analysis revealed that the median spectral index of the Sydney University Molonglo Sky Survey (SUMSS) 843 MHz sources in the field is $\alpha$ = $-$0.75, consistent with the values of $-0.7$ to $-0.8$ commonly used to characterise radio spectral energy distributions of active galactic nuclei (AGN). The 2.1 GHz and 1.4 GHz differential radio source counts are presented and compared to other 1.4 GHz radio surveys. The XXL-S source counts show good agreement with the other surveys.

19 pages, 19 figures. Accepted for publication in A&A

References in corpus (15)

• Hot and cold gas accretion and feedback in radio-loud active galaxies
• Radio sources in the 6dFGS: Local luminosity functions at 1.4 GHz for star-forming galaxies and radio-loud AGN
• Post-correlation radio frequency interference classification methods
• The Blanco Cosmology Survey: Data Acquisition, Processing, Calibration, Quality Diagnostics and Data Release
• The Star Formation History of the Universe as Revealed by Deep Radio Observations
• A Unified Catalog of Radio Objects Detected by NVSS, FIRST, WENSS, GB6, and SDSS
• The VLA-COSMOS Survey: III. Further Catalog Analysis and the Radio Source Counts
• The cosmic evolution of radio-AGN feedback to z=1
• Radio galaxies in the 2SLAQ Luminous Red Galaxy Survey: I. The evolution of low-power radio galaxies to z~0.7
• GAMA/WiggleZ: The 1.4GHz radio luminosity functions of high- and low-excitation radio galaxies and their redshift evolution to z=0.75
• Physical properties of z>4 submillimeter galaxies in the COSMOS field
• Radio-AGN Feedback: When the Little Ones were Monsters
• New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field
• The XXL Survey: XXIX. GMRT 610 MHz continuum observations
• The XXL Survey: XXXI. Classification and host galaxy properties of 2.1 GHz ATCA XXL-S radio sources

Cited by in corpus (19)

• The LOFAR Two Meter Sky Survey: Deep Fields, I -- Direction-dependent calibration and imaging
• Cosmic evolution of low-excitation radio galaxies in the LOFAR Two-meter Sky Survey Deep Fields
• The XXL Survey: XXVII. The 3XLSS point source catalogue
• The XXL Survey: XXIX. GMRT 610 MHz continuum observations
• The XXL Survey: XXXVI. Evolution and black hole feedback of high-excitation and low-excitation radio galaxies in XXL-S
• The Spatial Correlation of Bent-Tail Galaxies and Galaxy Clusters
• The XXL Survey: XXXI. Classification and host galaxy properties of 2.1 GHz ATCA XXL-S radio sources
• The cosmic radio background from 150 MHz--8.4 GHz, and its division into AGN and star-forming galaxy flux
• Evolutionary Map of the Universe (EMU):Compact radio sources in the SCORPIO field towards the Galactic plane
• XXL Survey XXI. The environment and clustering of X-ray AGN in the XXL-South field
• The XXL Survey: XXXIV. Double irony in XXL-North. A tale of two radio galaxies in a supercluster at z = 0.14
• The XXL Survey: XLIII. The quasar radio loudness dichotomy exposed via radio luminosity functions obtained by combining results from COSMOS and XXL-S X-ray selected quasars
• The XXL Survey : XXVI. Optical and near-infrared identifications of the ATCA 2.1 GHz radio sources in the XXL-S Field
• The XXL Survey: XXXIII. Chandra Constraints on the AGN Contamination of z > 1 XXL Galaxy Clusters
• The XXL Survey. XLI. Radio AGN luminosity functions based on the GMRT $610\mathrm{MHz}$ continuum observations
• The XXL Survey: XXXIX. Polarised radio sources in the XXL-South field
• Modelling radio luminosity functions of radio-loud AGN by the cosmological evolution of supermassive black holes
• Hosts and environments: a (large-scale) radio history of AGN and star-forming galaxies
• A new wideband radio polarization observation of the Supernova Remnant G315.4$-$2.3