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

doi:10.1017/S1743921314013738

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

Institute of Cosmology & Gravitation

Carnegie Mellon University

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English
Pages (from-to)	266-268
Number of pages	3
Journal	Proceedings of the International Astronomical Union
Volume	10
Issue number	S306
DOIs	https://doi.org/10.1017/S1743921314013738
Publication status	Published - 1 Jul 2015
Event	Statistical Challenges in 21st Century Cosmology: SCCC 21 - Lisbon, Portugal Duration: 25 May 2014 → 29 May 2014 https://www.iau.org/science/meetings/past/symposia/1090/ http://www.sccc21.ul.pt/

Keywords

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

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https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/understanding-cosmological-measurements-with-a-large-number-of-mock-galaxy-catalogues/EFA851C2EB9BF0A10B583BFC84D12958

Cite this

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title = "Understanding cosmological measurements with a large number of mock galaxy catalogues",

abstract = "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 universe, distance scale, methods: simulations, statistical",

author = "M. Manera and Percival, {W. J.} and Ashley Ross and R. Tojeiro and L. Samushia and C. Howlett and M. Vargas-Maga{\~n}a and A. Burden",

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doi = "10.1017/S1743921314013738",

language = "English",

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note = "Statistical Challenges in 21st Century Cosmology : SCCC 21 ; Conference date: 25-05-2014 Through 29-05-2014",

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TY - JOUR

T1 - Understanding cosmological measurements with a large number of mock galaxy catalogues

AU - Manera, M.

AU - Percival, W. J.

AU - Ross, Ashley

AU - Tojeiro, R.

AU - Samushia, L.

AU - Howlett, C.

AU - Vargas-Magaña, M.

AU - Burden, A.

PY - 2015/7/1

Y1 - 2015/7/1

N2 - 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.

AB - 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.

KW - cosmology: large scale structure of the universe

KW - distance scale

KW - methods: simulations

KW - statistical

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EP - 268

JO - Proceedings of the International Astronomical Union

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IS - S306

T2 - Statistical Challenges in 21st Century Cosmology

Y2 - 25 May 2014 through 29 May 2014

ER -

Understanding cosmological measurements with a large number of mock galaxy catalogues

Abstract

Keywords

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