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

Lehman H. Garrison, Daniel J. Eisenstein, Douglas Ferrer, Jeremy L. Tinker, Philip A. Pinto, David H. Weinberg

Research output: Contribution to journalArticlepeer-review

76 Scopus citations


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 o and 1 × 1010 h -1 M o, 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

Original languageEnglish (US)
Article number43
JournalAstrophysical Journal, Supplement Series
Issue number2
StatePublished - Jun 2018


  • large-scale structure of universe
  • methods: numerical

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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