Radio AGN selection and characterization in three Deep-Drilling Fields of the Vera C. Rubin Observatory Legacy Survey of Space and Time

Shifu Zhu, W. N. Brandt, Fan Zou, Bin Luo, Qingling Ni, Yongquan Xue, Wei Yan

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The Australia Telescope Large Area Survey (ATLAS) and the VLA survey in the XMM-LSS/VIDEO deep field provide deep (≈15 μ Jy beam−1) and high-resolution (≈4.5-8 arcsec) radio coverage of the three XMM-SERVS fields (W-CDF-S, ELAIS-S1, and XMM-LSS). These data cover a total sky area of 11.3 deg2 and contain ≈11 000 radio components. Furthermore, about 3 deg2 of the XMM-LSS field also has deeper MIGHTEE data that achieve a median RMS of 5.6 μ Jy beam−1 and detect more than 20 000 radio sources. We analyse all these radio data and find source counterparts at other wavebands utilizing deep optical and infrared (IR) surveys. The nature of these radio sources is studied using radio-band properties (spectral slope and morphology) and the IR-radio correlation. Radio AGNs are selected and compared with those selected using other methods (e.g. X-ray). We found 1656 new AGNs that were not selected using X-ray and/or MIR methods. We constrain the FIR-to-UV SEDs of radio AGNs using CIGALE and investigate the dependence of radio AGN fraction upon galaxy stellar mass and star formation rate.

Original languageEnglish (US)
Pages (from-to)3506-3528
Number of pages23
JournalMonthly Notices of the Royal Astronomical Society
Volume522
Issue number3
DOIs
StatePublished - Jul 1 2023

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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