Subhalo abundance matching in $f(R)$ gravity

Understand

Using the liminality N-body simulations of Shi et.

• al., we present the first predictions for galaxy clustering in $f(R)$ gravity using subhalo abundance matching.
• We find that, for a given galaxy density, even for an $f(R)$ model with $f_{R0}=-10^{-6}$, for which the cold dark matter clustering is very similar to $\Lambda$CDM, the predicted clustering of galaxies in the $f(R)$ model is very different from $\Lambda$CDM.
• The deviation can be as large as $40\%$ for samples with mean densities close to that of $L_*$ galaxies.