Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Biased tracers of two fluids in the Lagrangian picture

Journal Article · · Journal of Cosmology and Astroparticle Physics
 [1];  [2];  [2]
  1. Univ. of California, Berkeley, CA (United States); University of California, Berkeley
  2. Univ. of California, Berkeley, CA (United States); Berkeley Center for Cosmological Physics, Berkeley, CA (United States)
+ Show Author Affiliations

We explore Lagrangian perturbation theory (LPT) for biased tracers in the presence of two fluids, focusing on the case of cold dark matter (CDM) and baryons. The presence of two fluids induces corrections to the Lagrangian bias expansion and tracer advection, both of which we formulate as expansions in the three linear modes of the Lagrangian equations of motion. We compute the linear-order two-fluid corrections in the Zeldovich approximation, finding that modifications to the bias expansion and tracer advection both enter as percent-level corrections over a large range of wavenumbers at low redshift and draw parallels with the Eulerian formalism. We then discuss nonlinear corrections in the two-fluid picture, and calculate contributions from the relative velocity effect ($$\propto$$ v$$_r^2$$) at one loop order. Finally, we conduct an exploratory Fisher analysis to assess the impact of two-fluid corrections on baryon acoustic oscillations (BAO) measurements, finding that while modest values of the relative bias parameters can introduce systematic biases in the measured BAO scale of up to 0.5 $$σ$$, fitting for these effects as additional parameters increases the error bar by less than 30% across a wide range of bias values.

Research Organization:
Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF)
Grant/Contract Number:
SC0017860; AC02-05CH11231
OSTI ID:
1594717
Journal Information:
Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 06 Vol. 2019; ISSN 1475-7516
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

References (97)

On the effect of the ionizing background on the Lyα forest autocorrelation function journal June 2014
Estimates for the impact of ultraviolet background fluctuations on galaxy clustering measurements journal March 2019
Scale-dependent bias in the baryonic-acoustic-oscillation-scale intergalactic neutral hydrogen journal April 2014
Modeling scale-dependent bias on the baryonic acoustic scale with the statistics of peaks of Gaussian random fields text January 2010
Velocity bias in the distribution of dark matter halos text January 2014
The Effective Field Theory of Large-Scale Structure in the presence of Massive Neutrinos preprint January 2017
A new scale in the bias expansion text January 2018
The bias field of dark matter haloes text January 1997
The effective field theory of cosmological large scale structures journal September 2012
Cosmology and fundamental physics with the Euclid satellite journal April 2018
Large-scale structure of the Universe and cosmological perturbation theory journal September 2002
Observational probes of cosmic acceleration journal September 2013
Large-scale galaxy bias journal February 2018
The bias field of dark matter haloes journal July 1998
Efficient Computation of Cosmic Microwave Background Anisotropies in Closed Friedmann‐Robertson‐Walker Models journal August 2000
Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak journal August 2007
Nonlinear Behavior of Baryon Acoustic Oscillations from the Zel'Dovich Approximation Using a Non-Fourier Perturbation Approach journal May 2012
Large-scale BAO signatures of the smallest galaxies journal November 2010
Supersonic relative velocity effect on the baryonic acoustic oscillation measurements journal July 2011
The Cosmic Linear Anisotropy Solving System (CLASS). Part II: Approximation schemes journal July 2011
Cosmological non-linearities as an effective fluid journal July 2012
Cosmology with massive neutrinos II: on the universality of the halo mass function and bias journal February 2014
The Lagrangian-space Effective Field Theory of large scale structures journal May 2014
Structure formation with massive neutrinos: going beyond linear theory journal November 2014
Analytic prediction of baryonic effects from the EFT of large scale structures journal May 2015
DEMNUni: the clustering of large-scale structures in the presence of massive neutrinos journal July 2015
A Lagrangian effective field theory journal September 2015
Lagrangian space consistency relation for large scale structure journal September 2015
Bias in the effective field theory of large scale structures journal November 2015
Perturbation theory, effective field theory, and oscillations in the power spectrum journal March 2016
The Gaussian streaming model and convolution Lagrangian effective field theory journal December 2016
On the IR-resummation in the EFTofLSS journal May 2018
The impact of wrong assumptions in BAO reconstruction journal February 2019
A new scale in the bias expansion journal May 2019
Convolution Lagrangian perturbation theory for biased tracers journal December 2012
The Zel'dovich approximation journal February 2014
On the effect of the ionizing background on the Lyα forest autocorrelation function journal June 2014
Reconstruction within the Zeldovich approximation journal May 2015
Constraining the relative velocity effect using the Baryon Oscillation Spectroscopic Survey journal May 2017
Halo bias in Lagrangian space: estimators and theoretical predictions journal August 2017
Constraining the baryon–dark matter relative velocity with the large-scale three-point correlation function of the SDSS BOSS DR12 CMASS galaxies journal October 2017
Estimates for the impact of ultraviolet background fluctuations on galaxy clustering measurements journal March 2019
Resumming cosmological perturbations via the Lagrangian picture: One-loop results in real space and in redshift space journal March 2008
Erratum: Nonlinear perturbation theory with halo bias and redshift-space distortions via the Lagrangian picture [Phys. Rev. D 78 , 083519 (2008)] journal November 2008
Reconstructing baryon oscillations: A Lagrangian theory perspective journal March 2009
Calibrating the baryon oscillation ruler for matter and halos journal September 2009
Nonlinear power spectrum in the presence of massive neutrinos: Perturbation theory approach, galaxy bias, and parameter forecasts journal October 2009
Reconstructing baryon oscillations journal December 2009
Cosmological perturbation theory for baryons and dark matter: One-loop corrections in the renormalized perturbation theory framework journal January 2010
Massive neutrinos in cosmology: Analytic solutions and fluid approximation journal June 2010
Relative velocity of dark matter and baryonic fluids and the formation of the first structures journal October 2010
Modeling scale-dependent bias on the baryonic acoustic scale with the statistics of peaks of Gaussian random fields journal November 2010
Shift of the baryon acoustic oscillation scale: A simple physical picture journal May 2012
Power spectra in the eikonal approximation with adiabatic and nonadiabatic modes journal February 2013
Scale-dependent bias in the baryonic-acoustic-oscillation-scale intergalactic neutral hydrogen journal April 2014
Halo bias in mixed dark matter cosmologies journal October 2014
Velocity bias in the distribution of dark matter halos journal December 2015
Effect of relative velocity and density perturbations between baryons and dark matter on the clustering of galaxies journal September 2016
Imprints of reionization in galaxy clustering journal October 2017
Review of Particle Physics journal August 2018
Efficient computation of galaxy bias with neutrinos and other relics journal August 2018
Streaming Velocities and the Baryon Acoustic Oscillation Scale journal March 2016
Measuring Cosmological Parameters with Galaxy Surveys journal November 1997
Probing dark energy with the shear-ratio geometric test journal February 2007
Cosmology and Fundamental Physics with the Euclid Satellite journal September 2013
Estimates for the impact of ultraviolet background fluctuations on galaxy clustering measurements text January 2019
Review of Particle Physics text January 2012
Review of Particle Physics text January 2018
Cosmology and fundamental physics with the Euclid satellite text January 2018
Resumming Cosmological Perturbations via the Lagrangian Picture: One-loop Results in Real Space and in Redshift Space text January 2007
Cosmological Non-Linearities as an Effective Fluid text January 2010
Relative velocity of dark matter and baryonic fluids and the formation of the first structures text January 2010
Modeling scale-dependent bias on the baryonic acoustic scale with the statistics of peaks of Gaussian random fields text January 2010
The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes text January 2011
Nonlinear Behavior of Baryon Acoustic Oscillations from the Zel'dovich Approximation Using a Non-Fourier Perturbation Approach text January 2012
Cosmology and fundamental physics with the Euclid satellite text January 2012
The Effective Field Theory of Cosmological Large Scale Structures text January 2012
Convolution Lagrangian perturbation theory for biased tracers text January 2012
Cosmology with massive neutrinos II: on the universality of the halo mass function and bias text January 2013
The Lagrangian-space Effective Field Theory of Large Scale Structures text January 2013
The Zeldovich approximation text January 2014
Velocity bias in the distribution of dark matter halos text January 2014
A Lagrangian effective field theory text January 2015
Perturbation theory, effective field theory, and oscillations in the power spectrum text January 2015
Streaming velocities and the baryon-acoustic oscillation scale text January 2015
The effect of relative velocity and density perturbations between baryons and dark matter on the clustering of galaxies text January 2016
Large-Scale Galaxy Bias text January 2016
Efficient Computation of Galaxy Bias with Neutrinos and Other Relics text January 2018
Large-Scale Structure of the Universe and Cosmological Perturbation Theory text January 2001
Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak text January 2006
Measuring cosmological parameters with galaxy surveys text January 1997
The bias field of dark matter haloes text January 1997
Review of Particle Physics text January 2008
Cosmological perturbation theory for baryons and dark matter: One-loop corrections in the renormalized perturbation theory framework text January 2010
Large-scale BAO signatures of the smallest galaxies text January 2010
Modeling scale-dependent bias on the baryonic acoustic scale with the statistics of peaks of Gaussian random fields text January 2010
Supersonic relative velocity effect on the baryonic acoustic oscillation measurements text January 2011

Cited By (5)

The reconstructed power spectrum in the Zeldovich approximation journal September 2019
Constraining primordial non-Gaussianity using two galaxy surveys and CMB lensing journal August 2019
Measuring dark matter-neutrino relative velocity on cosmological scales journal January 2020
Constraining primordial non-Gaussianity using two galaxy surveys and CMB lensing text January 2019
The Reconstructed Power Spectrum in the Zeldovich Approximation text January 2019

Similar Records

A Lagrangian perturbation theory in the presence of massive neutrinos
Journal Article · 2020 · Journal of Cosmology and Astroparticle Physics · OSTI ID:1769260
Reconstructing baryon oscillations
Journal Article · 2009 · Physical Review. D, Particles Fields · OSTI ID:21313556
Using Lagrangian perturbation theory for precision cosmology
Journal Article · 2014 · Astrophysical Journal · OSTI ID:22356651

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS