FEASTS and MHONGOOSE: HI Column Density Distribution at $z=0$ for $N_{\mathrm{HI}}>10^{17.8}{\mathrm{cm}}^{-2}$

Jing Wang, Xuchen Lin, Ze-Zhong Liang +24

We present the first $z=0$ HI column density distribution function, $f(N_{\mathrm{HI}})$, extending down to $\log (N_{\mathrm{HI}}/{\mathrm{cm}}^{-2})=17.8$. This was derived from high-s…