Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Perturbation theory for modeling galaxy bias: validation with simulations of the Dark Energy Survey

Journal Article · · Phys.Rev.D

We describe perturbation theory (PT) models of galaxy bias for applications to photometric galaxy surveys. We model the galaxy-galaxy and galaxy-matter correlation functions in configuration space and validate against measurements from mock catalogs designed for the Dark Energy Survey (DES). We find that an effective PT model with five galaxy bias parameters provides a good description of the 3D correlation functions above scales of 4 Mpc/$$h$$ and $z < 1$. Our tests show that at the projected precision of the DES-Year 3 analysis, two of the non-linear bias parameters can be fixed to their co-evolution values, and a third (the $k^2$ term for higher derivative bias) set to zero. The agreement is typically at the 2 percent level over scales of interest, which is the statistical uncertainty of our simulation measurements. To achieve this level of agreement, our {\it fiducial} model requires using the full non-linear matter power spectrum (rather than the 1-loop PT one). We also measure the relationship between the non-linear and linear bias parameters and compare them to their expected co-evolution values. We use these tests to motivate the galaxy bias model and scale cuts for the cosmological analysis of the Dark Energy Survey; our conclusions are generally applicable to all photometric surveys.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
DES
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1908218
Report Number(s):
DES-2019-0458; FERMILAB-PUB-20-421-AE; arXiv:2008.05991; oai:inspirehep.net:1811655
Journal Information:
Phys.Rev.D, Vol. 102
Country of Publication:
United States
Language:
English

References (69)

Large-scale structure of the Universe and cosmological perturbation theory journal September 2002
Large-scale galaxy bias journal February 2018
Second-order power spectrum and nonlinear evolution at high redshift journal August 1994
Coupling of modes of cosmological mass density fluctuations journal December 1986
Resumming cosmological perturbations via the Lagrangian picture: One-loop results in real space and in redshift space journal March 2008
Renormalized cosmological perturbation theory journal March 2006
The effective field theory of cosmological large scale structures journal September 2012
A Lagrangian effective field theory journal September 2015
Biasing and hierarchical statistics in large-scale structure journal August 1993
Galaxy formation with a local bias journal June 1993
The non-linear redshift-space power spectrum of galaxies journal December 1998
Constraints on the Effects of Locally Biased Galaxy Formation journal September 1998
Clustering of dark matter tracers: generalizing bias for the coming era of precision LSS journal August 2009
Integrated perturbation theory and one-loop power spectra of biased tracers journal August 2014
Convolution Lagrangian perturbation theory for biased tracers journal December 2012
The WiggleZ Dark Energy Survey: the growth rate of cosmic structure since redshift z=0.9: WiggleZ Survey: growth of structure journal June 2011
The WiggleZ Dark Energy Survey: constraining galaxy bias and cosmic growth with three-point correlation functions journal May 2013
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Cosmological implications of the configuration-space clustering wedges journal September 2016
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the power spectrum and bispectrum of the DR12 BOSS galaxies journal October 2016
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: anisotropic galaxy clustering in Fourier space journal December 2016
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Cosmological implications of the Fourier space wedges of the final sample journal January 2017
The cosmological analysis of the SDSS/BOSS data from the Effective Field Theory of Large-Scale Structure journal May 2020
Cosmological parameters and neutrino masses from the final P l a n c k and full-shape BOSS data journal April 2020
Halo models of large scale structure journal December 2002
The Halo Occupation Distribution: Toward an Empirical Determination of the Relation between Galaxies and Mass journal August 2002
Theoretical Models of the Halo Occupation Distribution: Separating Central and Satellite Galaxies journal November 2005
Galaxy–galaxy lensing in the Dark Energy Survey Science Verification data journal November 2016
The Luminosity and Color Dependence of the Galaxy Correlation Function journal September 2005
Understanding higher-order nonlocal halo bias at large scales by combining the power spectrum with the bispectrum journal December 2014
On the statistics of biased tracers in the Effective Field Theory of Large Scale Structures journal September 2015
Impact of bias and redshift-space modelling for the halo power spectrum: testing the effective field theory of large-scale structure journal July 2020
Renormalization of linear halo bias in N-body simulations journal December 2019
Testing one-loop galaxy bias: Power spectrum journal November 2020
Stochasticity of Bias and Nonlocality of Galaxy Formation: Linear Scales journal November 1999
Stochastic Nonlinear Galaxy Biasing journal July 1999
Stochastic Biasing and the Galaxy–Mass Density Relation in the Weakly Nonlinear Regime journal September 1999
Gravity and large-scale nonlocal bias journal April 2012
The Evolution of Bias journal April 1996
Evidence for quadratic tidal tensor bias from the halo bispectrum journal October 2012
Halo bias in Lagrangian space: estimators and theoretical predictions journal August 2017
Cosmological constraints from a combination of galaxy clustering and lensing – I. Theoretical framework journal February 2013
Controlling and leveraging small-scale information in tomographic galaxy–galaxy lensing journal October 2019
Algorithm for the direct reconstruction of the dark matter correlation function from weak lensing and galaxy clustering journal March 2010
The dark Energy Camera journal October 2015
The Dark Energy Survey Image Processing Pipeline journal May 2018
The cosmological simulation code gadget-2 journal December 2005
The MICE grand challenge lightcone simulation – I. Dark matter clustering journal March 2015
An algorithm to build mock galaxy catalogues using MICE simulations journal December 2014
The MICE Grand Challenge lightcone simulation – II. Halo and galaxy catalogues journal August 2015
redMaGiC: selecting luminous red galaxies from the DES Science Verification data journal May 2016
Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing journal August 2018
DES Y1 Results: validating cosmological parameter estimation using simulated Dark Energy Surveys journal July 2018
Effective field theory of gravity for extended objects journal May 2006
Bias in the effective field theory of large scale structures journal November 2015
Cosmological non-linearities as an effective fluid journal July 2012
Measuring neutrino masses with large-scale structure: Euclid forecast with controlled theoretical error journal November 2019
Revising the Halofit Model for the Nonlinear Matter Power Spectrum journal December 2012
Effective field theory of large scale structure at two loops: The apparent scale dependence of the speed of sound journal December 2015
FAST-PT: a novel algorithm to calculate convolution integrals in cosmological perturbation theory journal September 2016
FAST-PT II: an algorithm to calculate convolution integrals of general tensor quantities in cosmological perturbation theory journal February 2017
Fast large scale structure perturbation theory using one-dimensional fast Fourier transforms journal May 2016
Notes on bias in Estimation journal January 1956
Abstracts of Papers journal June 1958
Statistical analysis of galaxy surveys - I. Robust error estimation for two-point clustering statistics journal June 2009
Performance of internal covariance estimators for cosmic shear correlation functions journal December 2015
Why your model parameter confidences might be too optimistic. Unbiased estimation of the inverse covariance matrix journal December 2006
Bias and variance of angular correlation functions journal July 1993
The skewness of the aperture mass statistic journal July 2004
CosmoSIS: Modular cosmological parameter estimation journal September 2015

Similar Records

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS