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AbacusSummit Cleaned Halo Catalogs

  • Garrison, Lehman | Oak Ridge National Laboratory
  • Bose, Sownak | Harvard University
  • Eisenstein, Daniel | Harvard University
  • Hadzhiyska, Boryana | Harvard University
  • Garrison, Lehman | Center for Computational Astrophysics, Flatiron Institute
  • Yuan, Sihan | Harvard University
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Overview

Description

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: abacussummit.readthedocs.io/ 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.

Funding resources

DOE contract number

DOE-SC0013718, DE-AC05-00OR22725, DE-AC02-05CH11231

Originating research organization

Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States);Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring organization

Office of Science (SC);Harvard University, Flatiron Institute, Simons Foundation, National Science Foundation, National Aeronautics and Space Administration

Related resources

Details

DOI

10.13139/OLCF/1828535

Release date

January 3, 2022

Dataset

Dataset type

ND Numeric Data

Software

ASDF (https://asdf.readthedocs.io), abacusutils (https://abacusutils.readthedocs.io)

Other contract number(s)

NSF AST-1313285, NASA ROSES 12-EUCLID12-0004

Other ID number(s)

AbacusSummit

Acknowledgements

Users should acknowledge the OLCF in all publications and presentations that speak to work performed on OLCF resources:

This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC05-00OR22725.

Category

  • 79 ASTRONOMY AND ASTROPHYSICS

Keywords

  • N-body simulation,
  • cosmology,
  • large-scale structure