AbacusSummit Cleaned Halo Catalogs


This is a data release from the AbacusSummit suite of cosmological N-body simulations. It contains dark matter halo catalogs and particle samples from those halos. The halo catalogs have been augmented ("cleaned") using halo merger tree information. Descriptions of AbacusSummit, the cleaned halo catalogs, and instructions for manipulating these catalogs can be found at the following URL: The halo catalog cleaning is structured as a set of auxiliary files that are ingested by the reader code at runtime. But this release contains both the original catalogs and the auxiliary files, thus forming a self-contained dataset. The files in this release are aggregated by redshift. We define sets of simulations (like all c000 sims or all hugebase sims), and then store one redshift from all simulations per tarball. This is designed to support the use-case where a user wants to analyze multiple simulations at a certain redshift.

Created: 2021-11-02 14:54:03

Published: 2022-01-03 19:57:17

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Dataset Properties

Field Value
Authors Garrison, Lehman ORNL
Bose, Sownak Harvard University
Eisenstein, Daniel Harvard University
Hadzhiyska, Boryana Harvard University
Garrison, Lehman Center for Computational Astrophysics, Flatiron Institute
Yuan, Sihan Harvard University
Project Identifier AST145, AST135
Dataset Type ND Numeric Data
Keywords N-body simulation cosmology large-scale structure
Software Needed ASDF (, abacusutils (
Other Identifying ['AbacusSummit']
Originating Organizations Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organizations Office of Science (SC);Harvard University
Flatiron Institute
Simons Foundation
National Science Foundation
National Aeronautics and Space Administration
DOE Contract DOE-SC0013718, DE-AC05-00OR22725, DE-AC02-05CH11231
Other Contract NSF AST-1313285, NASA ROSES 12-EUCLID12-0004
Related Identifiers IsSupplementTo (DOI) 10.13139/OLCF/1811689


Papers using this DOI dataset are requested to include the following text in their acknowledgements:

*Support for 10.13139/OLCF/1828535 dataset is provided by the U.S. Department of Energy, project AST145, AST135 under Contract DOE-SC0013718, DE-AC05-00OR22725, DE-AC02-05CH11231. Project AST145, AST135 used resources of the Oak Ridge Leadership Computing Facility at Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DOE-SC0013718, DE-AC05-00OR22725, DE-AC02-05CH11231*