Galaxy catalog (37698 galaxy objects)
We detected galaxies with more than 50 stellar particles (about $10^{8} \; \Msun$) using AdaptaHOP (Aubert et al. 2004). There are 37 698 galaxies detected in Extreme Horizon at $z\sim2$ and 20 314 in Standard Horizon. While the mass functions above $10^{10} \; \Msun$ are quite similar in both simulations, Extreme Horizon forms twice as many galaxies as Standard Horison with stellar mass $\textrm{M}_{*} \le 5\times 10^{9} \; \Msun$. We rule out any detection bias since stellar particles have similar masses in both simulations (new stars form at the maximal resolution level in each simulation) and we attribute this difference to the increased resolution in low-density regions.
Here is an interactive (rotating/zoomable) 3D scatterplot of the full galaxy catalog with point sizes scaling with the galaxy total mass and point colors scaling with the stellar mass :
