Poster Presentation

The second data release (DR2) of the Uchuu simulations: mock catalogs

Author(s): Tomoaki Ishiyama (Chiba University), Francisco Prada (The Instituto Astrofísica Andalucía, CSIC ), Anatoly Klypin (University of Virginia), Uchuu collaboration

Presenter: Tomoaki Ishiyama (Chiba University)

We introduce the Uchuu suite of large high-resolution cosmological N-body simulations. The largest simulation, named Uchuu, consists of 2.1 trillion dark matter particles in a box of side-length 2.0 Gpc/h, with particle mass of 3.27e8 Msun/h. The highest resolution simulation, Shin-Uchuu, consists of 262 billion particles in a box of side-length 140 Mpc/h, with particle mass of 8.97e5 Msun/h. Combining these simulations, we can follow the evolution of dark matter haloes and subhaloes spanning those hosting dwarf galaxies to massive galaxy clusters across an unprecedented volume. We released N-body data (halo/subhalo catalogs and merger trees) as DR1 in July 2020. In DR2 from July to September 2022, mock galaxy/AGN catalogs constructed using various models were released. I will focus on the details of DR2 and the future data release. Public data available at http://www.skiesanduniverses.org/Simulations/Uchuu/