Probing the Infrared/Radio correlation of the full IRAS Revised Bright Galaxy Sample with MeerKAT and the VLA

Abstract

We study the infrared/radio correlation of galaxies in the IRAS Revised Bright Galaxy Sample using new MeerKAT observations at $\nu =1.28\mathrm{GHz}$, complemented with VLA data. We classify the objects by primary energy source (Active Galactic Nuclei vs. Star-Forming) and take into account their merger status. With this, we aim to explore the effect of galaxy-galaxy interaction on the total-infrared (TIR)/radio correlation ($q_{\mathrm{TIR}}$) of star-forming galaxies by comparing the $q_{\mathrm{TIR}}$ distribution between isolated and interacting/merging sources. We found the median $q_{\mathrm{TIR}}$ to be $2.61\pm 0.01$ (scatter = 0.16) for isolated galaxies and $2.51\pm 0.08$ (scatter = 0.26) for interacting/merging galaxies. Our analysis reveals that interacting/merging galaxies exhibit lower $q_{\mathrm{TIR}}$ and higher dispersion compared to isolated galaxies, and the difference is marginally significant. Interacting/merging galaxies have redder $W2-W3$ colours, higher star formation rates (SFR) and specific SFR compared to isolated objects. We observe a significant decrease in $q_{\mathrm{TIR}}$ with increasing radio luminosity for isolated galaxies. Additionally, we find the median ratio of TIR ($8\mu m<\lambda <1000\mu m$) to far-infrared (FIR; $40\mu m<\lambda <120\mu m$) luminosities to be $⟨L_{\mathrm{TIR}}/L_{\mathrm{FIR}}⟩\approx 2.29$. By examining the relation between $L_{\mathrm{TIR}}$ and the mid-infrared (MIR) star-formation rate indicator ($L_{12\mu \mathrm{m}}$) employed for our interacting/merging sample, we note a strong and consistent (similar non-linear behaviour) relationship between the TIR/radio and TIR/MIR ratios. Finally, we show that already at $z<0.1$, $q_{\mathrm{TIR}}$ exhibits a dependence on stellar mass, with more massive galaxies displaying a lower $q_{\mathrm{TIR}}$.

arXiv commentThis manuscript is 26 pages long and contains 16 figures and 3 tables. The data are provided in machine-readable format on Zenodo at https://doi.org/10.5281/zenodo.16889781. The paper was accepted for publication in the Monthly Notices of the Royal Astronomical Society Main Journal on 26 August 2025, ref. MN-24-1207-MJ.R3

References in corpus (109)

• Galactic Stellar and Substellar Initial Mass Function
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• Cosmic Star Formation History
• Energy input from quasars regulates the growth and activity of black holes and their host galaxies
• Herschel Space Observatory - An ESA facility for far-infrared and submillimetre astronomy
• The Spitzer Space Telescope Mission
• Gasdynamics and Starbursts in Major Mergers
• The reversal of the star formation-density relation in the distant universe
• The IRAS Revised Bright Galaxy Sample (RBGS)
• Mid-Infrared Selection of Active Galaxies
• Radio Properties of Infrared Selected Galaxies in the IRAS 2 Jy Sample
• The Star-formation Mass Sequence out to z=2.5
• The Infrared Astronomical Mission AKARI
• Mid-Infrared Selection of AGN with the Wide-Field Infrared Survey Explorer. I. Characterizing WISE-Selected AGN in COSMOS
• Infrared luminosity functions from the Chandra Deep Field South : the Spitzer view on the history of dusty star formation at 0<z<1
• Estimating Star Formation Rates from Infrared and Radio Luminosities: The Origin of the Radio-Infrared Correlation
• Obscured and unobscured active galactic nuclei in the Spitzer Space Telescope First Look Survey
• The Spitzer Survey of Stellar Structure in Galaxies (S^4G)
• Cosmicflows-3
• The effect of galaxy mass ratio on merger--driven starbursts
• The Herschel PEP/HerMES Luminosity Function. I: Probing the Evolution of PACS selected Galaxies to z~4
• The deepest Herschel-PACS far-infrared survey: number counts and infrared luminosity functions from combined PEP/GOODS-H observations
• Optical and Near-Infrared Imaging of the IRAS 1-Jy Sample of Ultraluminous Infrared Galaxies: II. The Analysis
• GOALS: The Great Observatories All-Sky LIRG Survey
• Major Galaxy Mergers Only Trigger the Most Luminous AGN
• Kinematic Structure of Merger Remnants
• The Metallicity-Luminosity Relation, Effective Yields, and Metal Loss in Spiral and Irregular Galaxies
• The Main Sequence of star-forming galaxies across cosmic times
• Extending the Nearby Galaxy Heritage with WISE: First Results from the WISE Enhanced Resolution Galaxy Atlas
• Centaurus A - NGC 5128
• On the Nature of the NGC 1275 System
• The Radio-to-Submm Spectral Index as a Redshift Indicator
• The evolution of the dust temperatures of galaxies in the SFR$-M_{\ast }$ plane up to $z$$\sim$$2$
• Starburst and AGN activity in ultraluminous infrared galaxies
• The Mass-Metallicity and Luminosity-Metallicity Relation from DEEP2 at z ~ 0.8
• The Coincidence of Nuclear Star Clusters and Active Galactic Nuclei
• Dust temperature and mid-to-total infrared color distributions for star-forming galaxies at 0<z<4
• Galaxy Zoo: The properties of merging galaxies in the nearby Universe - local environments, colours, masses, star-formation rates and AGN activity
• VLA-COSMOS 3GHz Large Project: The infrared-radio correlation of star-forming galaxies and AGN to $z\lesssim 6$
• Galaxy Interactions Trigger Rapid Black Hole Growth: an unprecedented view from the Hyper Suprime-Cam Survey
• The VLA-COSMOS 3 GHz Large Project: The cosmic star formation history since z~5
• Evolution of Dust Temperature of Galaxies through Cosmic Time as seen by Herschel
• Far infrared and Radio emission in dusty starburst galaxies
• Calibrating Star Formation in WISE using Total Infrared Luminosity
• The Galaxy Activity, Torus and Outflow Survey (GATOS) I. ALMA images of dusty molecular tori in Seyfert galaxies
• Close Pairs of Field Galaxies in the CNOC1 Redshift Survey
• Observations of Seyferts by OSSE and parameters of their X-ray/gamma-ray sources
• GOODS-Herschel: radio-excess signature of hidden AGN activity in distant star-forming galaxies
• The mass of the black hole in Centaurus A from SINFONI AO-assisted integral-field observations of stellar kinematics
• The infrared-radio correlation of star-forming galaxies is strongly M${}_{\star }$-dependent but nearly redshift-invariant since z$\sim$4
• Deep Extragalactic VIsible Legacy Survey (DEVILS): SED Fitting in the D10-COSMOS Field and the Evolution of the Stellar Mass Function and SFR-$M_{\star }$ relation
• The Coevolution of Supermassive Black Holes and Massive Galaxies at High Redshift
• A Radio Study of the Seyfert Galaxy IC 5063: Evidence for Fast Gas Outflow
• The WISE Extended Source Catalogue (WXSC) I: The 100 Largest Galaxies
• Large Scale Structure in the Local Universe: The 2MASS Galaxy Catalog
• Modelling the spectral energy distribution of ULIRGs II: The energetic environment and the dense interstellar medium
• Galaxy and Mass Assembly (GAMA): Exploring the WISE Cosmic Web in G12
• Submillimeter Interferometry of the Luminous Infrared Galaxy NGC 4418: A Hidden Hot Nucleus with an Inflow and an Outflow
• $\Lambda$CDM Cosmology for Astronomers
• The Dramatic Size and Kinematic Evolution of Massive Early-Type Galaxies
• Evolution of Intrinsic Scatter in the SFR-Stellar Mass Correlation at 0.5<z<3
• The opaque nascent starburst in NGC 1377: Spitzer SINGS observations
• A closer view of the radio-FIR correlation: disentangling the contributions of star formation and AGN activity
• Winds of change - a molecular outflow in NGC 1377? The anatomy of an extreme FIR-excess galaxy
• A precessing molecular jet signaling an obscured, growing supermassive black hole in NGC1377?
• The Great Observatories All-Sky LIRG Survey: Herschel Image Atlas and Aperture Photometry
• Contemporaneous observations of the radio galaxy NGC 1275 from radio to very high energy gamma-rays
• The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias
• The Nature of Infrared Emission in the Local Group Dwarf Galaxy NGC 6822 As Revealed by Spitzer
• Galaxy interactions II: High density environments
• The Role of Merger Stage on Galaxy Radio Spectra in Local Infrared-Bright Starburst Galaxies
• Constraining the Radio-Submm Redshift Indicator using data from the SCUBA Local Universe Galaxy Survey
• Infrared 3-4 Micron Spectroscopy of Infrared Luminous Galaxies with Possible Signatures of Obscured Active Galactic Nuclei
• AGN feedback in a galaxy merger: Multi-phase, galaxy-scale outflows including a fast molecular gas blob ~6 kpc away from IRAS F08572+3915
• Simulating magnetic fields in the Antennae galaxies
• Galactic ménage à trois: Simulating magnetic fields in colliding galaxies
• Extended X-ray Emission in the HI Cavity of NGC 4151: Galaxy-scale AGN Feedback?
• A LOFAR-IRAS cross-match study: the far-infrared radio correlation and the 150-MHz luminosity as a star-formation rate
• A comparison of the morphological properties between local and z~1 infrared luminous galaxies. Are local and high-z (U)LIRGs different?
• Galaxy and Mass Assembly (GAMA): Demonstrating the power of WISE in the study of Galaxy Groups to $z<0.1$
• Gemini NIFS survey of feeding and feedback in nearby Active Galaxies -- IV. Excitation
• Broad-line region in NGC 4151 monitored by two decades of reverberation mapping campaigns. I. Evolution of structure and kinematics
• Connections between galaxy mergers and Starburst: evidence from local Universe
• Cosmic Star-Formation History Measured at 1.4 GHz
• Analytical Approach for the Determination of the Luminosity Distance in a Flat Universe with Dark Energy
• ALMA resolves the remarkable molecular jet and rotating wind in the extremely radio-quiet galaxy NGC 1377
• The Recent Star Formation in NGC 6822: an Ultraviolet Study
• Energetic nuclear transients in luminous and ultraluminous infrared galaxies
• Shock acceleration of relativistic particles in galaxy-galaxy collisions
• A Multiwavelength Study of Active Galactic Nuclei in Post-Merger Remnants
• Characterizing Compact 15-33 GHz Radio Continuum Sources in Local U/LIRGs
• Mixed Morphology Pairs as a Breeding Ground for Active Nuclei
• Magnetic field amplification and X-ray emission in galaxy minor mergers
• Possible Breaking of the FIR-Radio Correlation in Tidally Interacting Galaxies
• The PNe and H II regions in NGC 6822 revisited. Clues to AGB nucleosynthesis
• Exploring the Impact of Galactic Interactions and Mergers on the Central Star Formation of APEX/EDGE-CALIFA Galaxies
• Magnetic fields during galaxy mergers
• Structure and Star Formation in NGC 925
• Metal-THINGS: On the metallicity and ionization of ULX sources in NGC 925
• Galaxy and Mass Assembly (GAMA): A $\text{WISE}$ study of the activity of emission-line systems in G23
• The Young Stellar Population of the metal-poor galaxy NGC 6822
• Investigating the nature of the ultraluminous X-ray sources in the galaxy NGC 925
• The far-infrared/radio correlation for a sample of strongly lensed dusty star-forming galaxies detected by Herschel
• Connecting MeerKAT radio continuum properties to GAMA optical emission-line and WISE mid-infrared activity
• Warm Molecular Gas in the Central Parsecs of the Buried Nucleus of NGC 4418 Traced with the Fundamental CO Ro-vibrational Absorptions
• An X-ray View of Star Formation in the Central 3 kpc of NGC 2403
• Classification of local ultraluminous infrared galaxies and quasars with kernel principal component analysis
• The infrared-radio relation in the local universe
• Impact of Galactic Interactions on the Evolution of the Far-Infrared-Radio Correlation

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