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

doi:10.3847/1538-4365/aabfd3

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 journal › Article › peer-review

92 Scopus citations

Abstract

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 https://lgarrison.github.io/AbacusCosmos.

Original language	English (US)
Article number	43
Journal	Astrophysical Journal, Supplement Series
Volume	236
Issue number	2
DOIs	https://doi.org/10.3847/1538-4365/aabfd3
State	Published - Jun 2018

Keywords

large-scale structure of universe
methods: numerical

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4365/aabfd3

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abstract = "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 https://lgarrison.github.io/AbacusCosmos.",

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AU - Eisenstein, Daniel J.

AU - Ferrer, Douglas

AU - Tinker, Jeremy L.

AU - Pinto, Philip A.

AU - Weinberg, David H.

PY - 2018/6

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

Abstract

Keywords

ASJC Scopus subject areas

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