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Published December 14, 2018 | Version 1.0.0
Software Open

Core Cosmology Library

  • 1. University of Oxford
  • 2. University of Arizona
  • 3. Carnegie Mellon University
  • 4. Queen Mary University of London
  • 5. Université Paris-Sud
  • 6. Argonne National Laboratory
  • 7. University of California, Berkeley
  • 8. University of California, Riverside
  • 9. Royal Observatory Edinburgh
  • 10. University of British Columbia
  • 11. University of California, Irvine
  • 12. The University of Texas at Dallas
  • 13. University of Toronto
  • 14. Ohio State University
  • 15. Brookhaven National Laboratory
  • 16. Institute of Physics CAS

Description

The Core Cosmology Library (CCL) provides routines to compute basic cosmological observables to a high degree of accuracy, which have been verified with an extensive suite of validation tests. Predictions are provided for many cosmological quantities, including distances, angular power spectra, correlation functions, halo bias and the halo mass function through state-of-the-art modeling prescriptions available in the literature. Fiducial specifications for the expected galaxy distributions for the Large Synoptic Survey Telescope (LSST) are also included, together with the capability of computing redshift distributions for a user-defined photometric redshift model. A rigorous validation procedure, based on comparisons between CCL and independent software packages, allows us to establish a well-defined numerical accuracy for each predicted quantity. As a result, predictions for correlation functions of galaxy clustering, galaxy-galaxy lensing and cosmic shear are demonstrated to be within a fraction of the expected statistical uncertainty of the observables for the models and in the range of scales of interest to LSST. CCL is an open source software package written in C, with a python interface and publicly available at https://github.com/LSSTDESC/CCL.

Notes

Written in C, with a python interface.

Files

CCLv1.0.0.zip

Files (34.0 MB)

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md5:a1601693c95cfa2655a440ee124a44be
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Additional details

Related works

Is documented by
https://arxiv.org/abs/1812.05995 (URL)