An Updated Repository of Sub-mJy Extragalactic Source-Count Measurements in the Radio Domain

We present an updated repository of sub-mJy extragalactic radio source counts between 150 MHz and 10 GHz, incorporating recent advances in radio surveys and observational techniques. By compiling and refining previous datasets, we provide a comprehensive catalog that enhances the understanding of faint radio-source populations, including Dusty Star-Forming Galaxies (DSFGs) and Radio-Quiet Active Galactic Nuclei (RQAGNs), from intermediate to high redshifts. Our analysis accounts for observational biases, such as resolution effects and Eddington bias, ensuring improved accuracy in flux-density estimations. We also discuss the implications of new-generation radio telescopes, such as the Square-Kilometer Array Observatory (SKAO) and its precursors and pathfinders, to further resolve these populations. Our collection contributes to constraining evolutionary models of radio sources, highlighting the increasing role of polarization studies in distinguishing different classes. This work serves as a key reference for future deep radio surveys targeting the faintest end of the extragalactic radio sky.

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Publication Details

Journal
Galaxies
Published
2025-04-02
DOI
https://doi.org/10.3390/galaxies13020034
Citations
2
Primary Topic
Astrophysics and Cosmic Phenomena
Type
article
Field-Weighted Citation Impact
3.74

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article

An Updated Repository of Sub-mJy Extragalactic Source-Count Measurements in the Radio Domain

Meriem Behiri, Andrea Lapi, Marika Giulietti, V. Galluzzi
2 citations
Galaxies
Astrophysics and Cosmic Phenomena
3.74
article

An Updated Repository of Sub-mJy Extragalactic Source-Count Measurements in the Radio Domain

Meriem Behiri, Andrea Lapi, Marika Giulietti, V. Galluzzi
article en
2 citations

Abstract

We present an updated repository of sub-mJy extragalactic radio source counts between 150 MHz and 10 GHz, incorporating recent advances in radio surveys and observational techniques. By compiling and refining previous datasets, we provide a comprehensive catalog that enhances the understanding of faint radio-source populations, including Dusty Star-Forming Galaxies (DSFGs) and Radio-Quiet Active Galactic Nuclei (RQAGNs), from intermediate to high redshifts. Our analysis accounts for observational biases, such as resolution effects and Eddington bias, ensuring improved accuracy in flux-density estimations. We also discuss the implications of new-generation radio telescopes, such as the Square-Kilometer Array Observatory (SKAO) and its precursors and pathfinders, to further resolve these populations. Our collection contributes to constraining evolutionary models of radio sources, highlighting the increasing role of polarization studies in distinguishing different classes. This work serves as a key reference for future deep radio surveys targeting the faintest end of the extragalactic radio sky.

GalaxiesVol. 13(2)
Scuola Internazionale Superiore di Studi Avanzati (IT), Trieste Astronomical Observatory (IT), Istituto di Radioastronomia di Bologna (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (IT), Institute for Fundamental Physics of the Universe (IT)
European Commission, Horizon 2020 Framework Programme
Openalex Percentile: Top 9%
Astrophysics and Cosmic Phenomena
3.74
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