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The SZ flux-mass (<i>Y</i>โ€“<i>M</i>) relation at low-halo masses: improvements with symbolic regression and strong constraints on baryonic feedback

The SZ flux-mass (<i>Y</i>โ€“<i>M</i>) relation at low-halo masses: improvements with symbolic regression and strong constraints on baryonic feedback

Feedback from active galactic nuclei (AGN) and supernovae can affect measurements of integrated SZ flux of halos ($Y_\mathrm{SZ}$) from CMB surveys, and cause its relation with the halo mass ($Y_\mathrm{SZ}-M$) to deviate from the self-similar power-law prediction of the virial theorem. We perform a comprehensive study of such deviations using โ€ฆ