Mock Galaxy Redshift Catalogues

by Shaun Cole (1,3), Steve Hatton (1), David Weinberg (2,4) and Carlos Frenk (1,3)
  1. Department of Physics, University of Durham
  2. Department of Astronomy, Ohio State University
  3. 2dF Galaxy Redshift Survey Team Member
  4. Sloan Digital Sky Survey Consortium Member

These pages describe a comprehensive set of mock 2dF and SDSS galaxy redshift catalogues. Full details of the construction of the catalogues are given in Cole etal (MNRAS 1998 300, 945) . The catalogues themselves can be downloaded as can many plots illustrating the redshift surveys.

The other options listed in the index below give details of the size, resolution and timesteps of the N-body simulations , the biasing algorithms for defining galaxies and the survey selection functions. There is a gallery of pictures of the mock surveys and plots of the redshift distributions and clustering properties of the catalogues. There are also links to a copy of our journal paper and to the main pages from which the mock catalogues and some useful software can be downloaded. There are also links to the websites of the genuine 2dF , SDSS , and PSCz surveys.

Users with browsers that support Frames can navigate around these pages using the index in the frame on the left. Other users can use the index below, and the internal links that appear in the pages.


  1. Overview
    1. A brief description of the aims of this project.
  2. Errata and Enhancements
    1. Some corrections and enhancements which have been made.
  3. MNRAS paper
    1. Full details of the N-body simulations and the contruction and properties of the mock catalogues.
  4. N-body simulation
    1. Brief description of N-body simulation parameters.
    2. Links to previously published papers that utilize a subset of the same simulations.
  5. Biasing
    1. Brief descriptions of the models.
    2. Table of bias model parameters.
    3. Figures showing the bias as measured by the ratio of the galaxy to mass power spectra.
    4. Figures showing the correlation between galaxy and mass density in each bias model.
  6. Selection
    1. A description of the adopted selection function.
    2. Plots of the resulting number counts and redshift distributions.
  7. Clustering
    1. Figures of the mass correlation functions and power spectra
    2. Figures of the galaxy correlation functions and power spectra in each of the biasing models, compared to estimates made from the APM galaxy survey.
  8. Gallery
    1. A selection of projections of the mock catalogues including redshift space wedge plots of each of the catalogues and sky projections showing the areas covered by the two surveys.
  9. Counts
    1. Plots of the number counts and redshift distributions in both the 2dF and SDSS mock catalogues.
  10. Software
    1. Complete description of the format of both the mock catalogue files and the tabulated selection functions.
    2. Fortran program to read the mock catalogues.
    3. Fortan subroutines defining the geometrical boundaries of the surveys.
    4. Fortran subroutine to generate random (unclustered) positions with the same selection function and geometry as any one of the surveys.
  11. Mock Catalogues
    1. The selection page from which to select and download the mock catalogues.
    2. Tabulated selection functions for each mock catalogue.
    3. Complete description of the format of both the mock catalogue files and the tabulated selection functions.
    1. Special notes regarding the IRAS PSCZ mock catalogues.
  13. New mock catalogues based on the the VIRGO consortium Hubble Volume simulations.
  14. The home page of the genuine 2dF Project in the UK and in Australia .
  15. The home page of the genuine SDSS Project
  16. The Black Book, with detailed information about the SDSS project.
  17. The home page of the genuine PSCz Project
  18. Inventory of what is stored where (intended only for Durham use).

Visit the Durham University Xgal/Cosmology group homepage

Email the authors: , , , .