The Abacus Cosmos: A Suite of Cosmological N-body Simulations

We present a public data release of halo catalogs from a suite of 125 cosmological $N$-body simulations from the Abacus project. The simulations span 40 $w$CDM cosmologies centered on the Planck 2015 cosmology at two mass resolutions, $4\times {10}^{10}{h}^{-1}{M}_{\odot }$ and $1\times 10^{10};h^{-1}M_\odot$,in$1.1;h^{-1}$\mathrm{G}\mathrm{p}\mathrm{c}$$and$720;h^{-1}$\mathrm{M}\mathrm{p}\mathrm{c}$$ boxes, respectively. The boxes are phase-matched to suppress sample variance and isolate cosmology dependence. Additional volume is available via 16 boxes of fixed cosmology and varied phase; a few boxes of single-parameter excursions from Planck 2015 are also provided. Catalogs spanning $z=1.5$ to $0.1$ are available for friends-of-friends and Rockstar halo finders and include particle subsamples. All data products are available at https://lgarrison.github.io/AbacusCosmos