Understanding cosmological measurements with a large number of mock galaxy catalogues

M. Manera*, W. J. Percival, Ashley Ross, R. Tojeiro, L. Samushia, C. Howlett, M. Vargas-Magaña, A. Burden

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Mock galaxy catalogues are essential to the error analysis of cosmological measurements from big galaxy surveys covering thousands of square degrees in the sky, like BOSS, WiggleZ, DES, or Euclid. The PTHalos mock galaxy catalogues were used in the BOSS survey to analyse the BAO measurement from the CMASS (z∼ 0.57) and LOWZ (z∼ 0.32) galaxy samples, which provided the best estimate to date of the cosmic distance scale from galaxy surveys at these redshifts. We review the PTHalos mocks galaxy catalogues and their key contributions to these analyses.

Original languageEnglish
Pages (from-to)266-268
Number of pages3
JournalProceedings of the International Astronomical Union
Issue numberS306
Publication statusPublished - 1 Jul 2015
EventStatistical Challenges in 21st Century Cosmology: SCCC 21 - Lisbon, Portugal
Duration: 25 May 201429 May 2014


  • cosmology: large scale structure of the universe
  • distance scale
  • methods: simulations
  • statistical


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