The infrared-radio correlation of star-forming galaxies is strongly M$_{\star}$-dependent but nearly redshift-invariant since z$\sim$4.

Several works in the past decade have used the ratio between total (rest 8-1000$\mu$m) infrared and radio (rest 1.4 GHz) luminosity in star-forming galaxies (q$_{TIR}$), often referred to as the "infrared-radio correlation" (IRRC), to calibrate radio emission as a star formation rate (SFR) indicator. Previous studies constrained the evolution of q$_{TIR}$ with redshift, finding a mild but significant decline, that is yet to be understood. For the first time, we re-calibrate q$_{TIR}$ as a function of both stellar mass (M$_{*}$) and redshift, starting from an M$_{*}$-selected sample of >400,000 star-forming galaxies in the COSMOS field, identified via (NUV-r)/(r-J) colours, at redshifts 0.1

Keywords:

• Stellar mass
• Galaxy
• Physics
• Spectral density
• formation rate
• Invariant (mathematics)
• Infrared
• Astrophysics
• Redshift
• Luminosity

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