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Understanding Cosmological Measurements with a large number of mock galaxy catalogues.

Published online by Cambridge University Press:  01 July 2015

M. Manera ,
W. J. Percival ,
Ashley Ross ,
R. Tojeiro ,
L. Samushia ,
C. Howlett ,
M. Vargas-Magaña ,
A. Burden  and
for the SDSS-III BOSS Galaxy Working Group
M. Manera*
Affiliation:
Department of Physics & Astronomy, University College London, Gower St, London WC1E 6BT, UK
W. J. Percival
Affiliation:
Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3FX, UK
Ashley Ross
Affiliation:
Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3FX, UK
R. Tojeiro
Affiliation:
School of Physics & Astronomy, St Andrews University, North Haugh St Andrews, KY16 9SS, UK
L. Samushia
Affiliation:
Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3FX, UK
C. Howlett
Affiliation:
Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3FX, UK
M. Vargas-Magaña
Affiliation:
Department of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
A. Burden
Affiliation:
Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3FX, UK
*
†email: m.miret@ucl.ac.uk
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Abstract

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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.

Keywords

cosmology: large scale structure of the universedistance scalemethods: simulationsstatistical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Symposium S306: Statistical Challenges in 21st Century Cosmology , May 2014 , pp. 266 - 268
Copyright
Copyright © International Astronomical Union 2015 

References

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