How I stop worrying about non-universality and $b_{\varphi }$: Constraining local $f_{\mathrm{NL}}$ with $b_{\varphi }$ priors from HOD posteriors

Jiaxi Yu, Nhat-Minh Nguyen

Local primordial non-Gaussianity (local PNG) induces a scale-dependent contribution to galaxy clustering proportional to $f_{\mathrm{NL}}{b}_{\varphi }$, where $f_{\mathrm{NL}}$ is the local PNG ampl…