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

• Published in: The Astrophysical journal. Supplement series Vol. 236; no. 2; pp. 43 - 52
• Main Authors: Garrison, Lehman H., Eisenstein, Daniel J., Ferrer, Douglas, Tinker, Jeremy L., Pinto, Philip A., Weinberg, David H.
• Format: Journal Article
• Language: English
• Published: Saskatoon The American Astronomical Society 01.06.2018; IOP Publishing; American Astronomical Society/IOP
• Subjects: Astronomy & Astrophysics; ASTRONOMY AND ASTROPHYSICS; Boxes; Cosmology; Dynamical systems; large-scale structure of universe; Many body problem; methods: numeric; methods: numerical; Phase matching; Sample variance; Simulation
• ISSN: 0067-0049; 1538-4365; 1538-4365
• DOI: 10.3847/1538-4365/aabfd3

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 wCDM cosmologies centered on the Planck 2015 cosmology at two mass resolutions, 4 × 1010 h−1 M and 1 × 1010 h−1 M , in 1.1 h−1 Gpc and 720 h−1 Mpc 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.