Massive neutrinos and degeneracies in Lyman-alpha forest simulations

Pedersen, Christian; Font-Ribera, Andreu; Kitching, Thomas D.; McDonald, Patrick; Bird, Simeon; Slosar, Anže; Rogers, Keir K.; Pontzen, Andrew

doi:10.1088/1475-7516/2020/04/025

Title: Massive neutrinos and degeneracies in Lyman-alpha forest simulations

Abstract

Using a suite of hydrodynamical simulations with cold dark matter, baryons, and neutrinos, we present a detailed study of the effect of massive neutrinos on the 1-D and 3-D flux power spectra of the Lyman-α (Lyα) forest. The presence of massive neutrinos in cosmology induces a scale- and time-dependent suppression of structure formation that is strongest on small scales. Measuring this suppression is a key method for inferring neutrino masses from cosmological data, and is one of the main goals of ongoing and future surveys like eBOSS, DES, LSST, Euclid or DESI . The clustering in the Lyα forest traces the quasi-linear power at late times and on small scales. In combination with observations of the cosmic microwave background, the forest therefore provides some of the tightest constraints on the sum of the neutrino masses. However there is a well-known degeneracy between Σmν and the amplitude of perturbations in the linear matter power spectrum. We study the corresponding degeneracy in the 1-D flux power spectrum of the Lyα forest, and for the first time also study this degeneracy in the 3-D flux power spectrum. We show that the non-linear effects of massive neutrinos on the Lyα forest, beyond the effectmore »« less

Authors:

Pedersen, Christian ^[1]; Font-Ribera, Andreu ^[1]; Kitching, Thomas D. ^[2]; McDonald, Patrick ^[3]; Bird, Simeon ^[4]; Slosar, Anže ^[5]; Rogers, Keir K. ^[6]; Pontzen, Andrew ^[1]

Univ. College London (United Kingdom)
Univ. College London, Dorking, Surrey (United Kingdom). Mullard Space Science Laboratory
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Univ. of California, Riverside, CA (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Stockholm Univ. (Sweden). AlbaNova, Oskar Klein Centre for Cosmoparticle Physics

Publication Date:: Fri Apr 17 00:00:00 EDT 2020

Research Org.:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC); Royal Society; National Science Foundation (NSF); Science Research Council of Sweden

OSTI Identifier:: 1631649

Grant/Contract Number:: AC02-05CH11231; ST/R000476/1; AST-1817256; ST/P002307/1; ST/R002452/; ST/R00689X/1

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Cosmology and Astroparticle Physics

Additional Journal Information:: Journal Volume: 2020; Journal Issue: 04; Journal ID: ISSN 1475-7516

Publisher:: Institute of Physics (IOP)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats


                    Pedersen, Christian, Font-Ribera, Andreu, Kitching, Thomas D., McDonald, Patrick, Bird, Simeon, Slosar, Anže, Rogers, Keir K., and Pontzen, Andrew. Massive neutrinos and degeneracies in Lyman-alpha forest simulations.  United States: N. p., 2020. 
Web.  doi:10.1088/1475-7516/2020/04/025.

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                    Pedersen, Christian, Font-Ribera, Andreu, Kitching, Thomas D., McDonald, Patrick, Bird, Simeon, Slosar, Anže, Rogers, Keir K., & Pontzen, Andrew. Massive neutrinos and degeneracies in Lyman-alpha forest simulations.  United States.  https://doi.org/10.1088/1475-7516/2020/04/025

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                    Pedersen, Christian, Font-Ribera, Andreu, Kitching, Thomas D., McDonald, Patrick, Bird, Simeon, Slosar, Anže, Rogers, Keir K., and Pontzen, Andrew. Fri .  
"Massive neutrinos and degeneracies in Lyman-alpha forest simulations".  United States.  https://doi.org/10.1088/1475-7516/2020/04/025.  https://www.osti.gov/servlets/purl/1631649.

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@article{osti_1631649,

  title        = {Massive neutrinos and degeneracies in Lyman-alpha forest simulations},

  author       = {Pedersen, Christian and Font-Ribera, Andreu and Kitching, Thomas D. and McDonald, Patrick and Bird, Simeon and Slosar, Anže and Rogers, Keir K. and Pontzen, Andrew},

  abstractNote = {Using a suite of hydrodynamical simulations with cold dark matter, baryons, and neutrinos, we present a detailed study of the effect of massive neutrinos on the 1-D and 3-D flux power spectra of the Lyman-α (Lyα) forest. The presence of massive neutrinos in cosmology induces a scale- and time-dependent suppression of structure formation that is strongest on small scales. Measuring this suppression is a key method for inferring neutrino masses from cosmological data, and is one of the main goals of ongoing and future surveys like eBOSS, DES, LSST, Euclid or DESI . The clustering in the Lyα forest traces the quasi-linear power at late times and on small scales. In combination with observations of the cosmic microwave background, the forest therefore provides some of the tightest constraints on the sum of the neutrino masses. However there is a well-known degeneracy between Σmν and the amplitude of perturbations in the linear matter power spectrum. We study the corresponding degeneracy in the 1-D flux power spectrum of the Lyα forest, and for the first time also study this degeneracy in the 3-D flux power spectrum. We show that the non-linear effects of massive neutrinos on the Lyα forest, beyond the effect of linear power amplitude suppression, are negligible, and this degeneracy persists in the Lyα forest observables to a high precision. Here, we discuss the implications of this degeneracy for choosing parametrisations of the Lyα forest for cosmological analysis.},

  doi          = {10.1088/1475-7516/2020/04/025},

  journal      = {Journal of Cosmology and Astroparticle Physics},

  number       = 04,

  volume       = 2020,

  place        = {United States},

  year         = {Fri Apr 17 00:00:00 EDT 2020},

  month        = {Fri Apr 17 00:00:00 EDT 2020}

}

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Title: Massive neutrinos and degeneracies in Lyman-alpha forest simulations

Abstract

Citation Formats

Correlations in the three-dimensional Lyman-alpha forest contaminated by high column density absorbers journal, March 2018

Measurement of baryon acoustic oscillation correlations at z = 2.3 with SDSS DR12 Ly α -Forests journal, June 2017

Neutrinos in non-linear structure formation — a simple SPH approach journal, February 2012

Cosmological and astrophysical parameters from the Sloan Digital Sky Survey flux power spectrum and hydrodynamical simulations of the Lyman α forest journal, January 2006

Cosmological neutrino simulations at extreme scale journal, August 2017

How to add massive neutrinos to your ΛCDM simulation – extending cosmology rescaling algorithms journal, September 2019

Cosmology with massive neutrinos II: on the universality of the halo mass function and bias journal, February 2014

Status of neutrino oscillations 2018: 3 σ hint for normal mass ordering and improved CP sensitivity journal, July 2018

The Imprint of Neutrinos on Clustering in Redshift Space journal, July 2018

Efficient Computation of Cosmic Microwave Background Anisotropies in Closed Friedmann‐Robertson‐Walker Models journal, August 2000

νCO N CEPT: cosmological neutrino simulations from the non-linear Boltzmann hierarchy journal, February 2019

Suite of hydrodynamical simulations for the Lyman- α forest with massive neutrinos journal, July 2014

Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing journal, August 2018

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The Linear Theory Power Spectrum from the Lyα Forest in the Sloan Digital Sky Survey journal, December 2005

Cosmological parameters from combining the Lyman-α forest with CMB, galaxy clustering and SN constraints journal, October 2006

Physical effects involved in the measurements of neutrino masses with future cosmological data journal, February 2017

The Lyman-alpha forest power spectrum from the XQ-100 Legacy Survey journal, December 2016

The Mainz Neutrino Mass Experiment journal, June 2005

Consistent modelling of the meta-galactic UV background and the thermal/ionization history of the intergalactic medium journal, January 2019

Cosmological Hydrodynamic Simulations with Suppressed Variance in the Ly α Forest Power Spectrum journal, January 2019

Massive neutrinos and cosmology journal, July 2006

An efficient and accurate hybrid method for simulating non-linear neutrino structure journal, August 2018

The cosmological simulation code gadget-2 journal, December 2005

Measuring neutrino masses with a future galaxy survey journal, November 2012

DESI and other Dark Energy experiments in the era of neutrino mass measurements journal, May 2014

Simulating nonlinear cosmological structure formation with massive neutrinos journal, November 2016

How to estimate the 3D power spectrum of the Lyman-α forest journal, January 2018

The one-dimensional Ly α forest power spectrum from BOSS journal, November 2013

An efficient implementation of massive neutrinos in non-linear structure formation simulations journal, November 2012

Simulating the effect of high column density absorbers on the one-dimensional Lyman α forest flux power spectrum journal, November 2017

New approach for precise computation of Lyman-α forest power spectrum with hydrodynamical simulations journal, July 2014

Direct Neutrino Mass Experiments journal, June 2005

Baryon acoustic oscillations in the Ly α forest of BOSS DR11 quasars journal, January 2015

Measurement of baryon acoustic oscillations in the Lyman-α forest fluctuations in BOSS data release 9 journal, April 2013

Bayesian emulator optimisation for cosmology: application to the Lyman-alpha forest journal, February 2019

Massive Neutrinos and the Large-Scale Structure of the Universe journal, December 1980

Cosmological N -body simulations with suppressed variance journal, May 2016

The Lyman α forest in optically thin hydrodynamical simulations journal, December 2014

Baryon acoustic oscillations in the Ly α forest of BOSS quasars journal, April 2013

Discreteness effects in simulations of hot/warm dark matter: Discreteness effects in HDM/WDM simulations journal, August 2007

Precision cosmology from the Lyman alpha forest: power spectrum and bispectrum journal, September 2003

Massive neutrinos and the non-linear matter power spectrum: The matter power with neutrinos journal, January 2012

Neutrino masses and cosmology with Lyman-alpha forest power spectrum journal, November 2015

Grid based linear neutrino perturbations in cosmological N -body simulations journal, May 2009

Cosmology with massive neutrinos I: towards a realistic modeling of the relation between matter, haloes and galaxies journal, March 2014

The one-dimensional power spectrum from the SDSS DR14 Lyα forests journal, July 2019

Equation of state of the photoionized intergalactic medium journal, November 1997

The effect of neutrinos on the matter distribution as probed by the intergalactic medium journal, June 2010

New approach for precise computation of Lyman-α forest power spectrum with hydrodynamical simulations journal, July 2014

Neutrino masses and cosmology with Lyman-alpha forest power spectrum journal, November 2015

νCO N CEPT: cosmological neutrino simulations from the non-linear Boltzmann hierarchy journal, February 2019

The one-dimensional power spectrum from the SDSS DR14 Lyα forests journal, July 2019

An efficient and accurate hybrid method for simulating non-linear neutrino structure journal, August 2018

How to add massive neutrinos to your ΛCDM simulation – extending cosmology rescaling algorithms journal, September 2019

Cosmological N -body simulations with suppressed variance journal, May 2016

Cosmology with massive neutrinos I: towards a realistic modeling of the relation between matter, haloes and galaxies text, January 2013

Suite of Hydrodynamical Simulations for the Lyman-Alpha Forest with Massive Neutrinos text, January 2014

Physical effects involved in the measurements of neutrino masses with future cosmological data text, January 2016

Consistent modelling of the meta-galactic UV background and the thermal/ionization history of the intergalactic medium text, January 2018

Inferring the dark matter power spectrum from the Lyman-alpha forest in high-resolution QSO absorption spectra text, January 2004

Correlations in the three-dimensional Lyman-alpha forest contaminated by high column density absorbers
journal, March 2018

Measurement of baryon acoustic oscillation correlations at z = 2.3 with SDSS DR12 Ly α -Forests
journal, June 2017

Neutrinos in non-linear structure formation — a simple SPH approach
journal, February 2012

Cosmological and astrophysical parameters from the Sloan Digital Sky Survey flux power spectrum and hydrodynamical simulations of the Lyman α forest
journal, January 2006

Cosmological neutrino simulations at extreme scale
journal, August 2017

How to add massive neutrinos to your ΛCDM simulation – extending cosmology rescaling algorithms
journal, September 2019

Cosmology with massive neutrinos II: on the universality of the halo mass function and bias
journal, February 2014

Status of neutrino oscillations 2018: 3 σ hint for normal mass ordering and improved CP sensitivity
journal, July 2018

The Imprint of Neutrinos on Clustering in Redshift Space
journal, July 2018

Efficient Computation of Cosmic Microwave Background Anisotropies in Closed Friedmann‐Robertson‐Walker Models
journal, August 2000

νCO N CEPT: cosmological neutrino simulations from the non-linear Boltzmann hierarchy
journal, February 2019

Suite of hydrodynamical simulations for the Lyman- α forest with massive neutrinos
journal, July 2014

Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing
journal, August 2018

An emulator for the Lyman-α forest
journal, February 2019

Inferring the dark matter power spectrum from the Lyman α forest in high-resolution QSO absorption spectra
journal, November 2004

The effect of neutrinos on the matter distribution as probed by the intergalactic medium
journal, June 2010

The Linear Theory Power Spectrum from the Lyα Forest in the Sloan Digital Sky Survey
journal, December 2005

Cosmological parameters from combining the Lyman-α forest with CMB, galaxy clustering and SN constraints
journal, October 2006

Physical effects involved in the measurements of neutrino masses with future cosmological data
journal, February 2017

The Lyman-alpha forest power spectrum from the XQ-100 Legacy Survey
journal, December 2016

The Mainz Neutrino Mass Experiment
journal, June 2005

Consistent modelling of the meta-galactic UV background and the thermal/ionization history of the intergalactic medium
journal, January 2019

Cosmological Hydrodynamic Simulations with Suppressed Variance in the Ly α Forest Power Spectrum
journal, January 2019

Massive neutrinos and cosmology
journal, July 2006

An efficient and accurate hybrid method for simulating non-linear neutrino structure
journal, August 2018

The cosmological simulation code gadget-2
journal, December 2005

Measuring neutrino masses with a future galaxy survey
journal, November 2012

DESI and other Dark Energy experiments in the era of neutrino mass measurements
journal, May 2014

Simulating nonlinear cosmological structure formation with massive neutrinos
journal, November 2016

How to estimate the 3D power spectrum of the Lyman-α forest
journal, January 2018

The one-dimensional Ly α forest power spectrum from BOSS
journal, November 2013

An efficient implementation of massive neutrinos in non-linear structure formation simulations
journal, November 2012

Simulating the effect of high column density absorbers on the one-dimensional Lyman α forest flux power spectrum
journal, November 2017

New approach for precise computation of Lyman-α forest power spectrum with hydrodynamical simulations
journal, July 2014

Direct Neutrino Mass Experiments
journal, June 2005

Baryon acoustic oscillations in the Ly α forest of BOSS DR11 quasars
journal, January 2015

Measurement of baryon acoustic oscillations in the Lyman-α forest fluctuations in BOSS data release 9
journal, April 2013

Bayesian emulator optimisation for cosmology: application to the Lyman-alpha forest
journal, February 2019

Massive Neutrinos and the Large-Scale Structure of the Universe
journal, December 1980

Cosmological N -body simulations with suppressed variance
journal, May 2016

The Lyman α forest in optically thin hydrodynamical simulations
journal, December 2014

Baryon acoustic oscillations in the Ly α forest of BOSS quasars
journal, April 2013

Discreteness effects in simulations of hot/warm dark matter: Discreteness effects in HDM/WDM simulations
journal, August 2007

Precision cosmology from the Lyman alpha forest: power spectrum and bispectrum
journal, September 2003

Massive neutrinos and the non-linear matter power spectrum: The matter power with neutrinos
journal, January 2012

Neutrino masses and cosmology with Lyman-alpha forest power spectrum
journal, November 2015

Grid based linear neutrino perturbations in cosmological N -body simulations
journal, May 2009

Cosmology with massive neutrinos I: towards a realistic modeling of the relation between matter, haloes and galaxies
journal, March 2014

The one-dimensional power spectrum from the SDSS DR14 Lyα forests
journal, July 2019

Equation of state of the photoionized intergalactic medium
journal, November 1997

The effect of neutrinos on the matter distribution as probed by the intergalactic medium
journal, June 2010

New approach for precise computation of Lyman-α forest power spectrum with hydrodynamical simulations
journal, July 2014

Neutrino masses and cosmology with Lyman-alpha forest power spectrum
journal, November 2015

νCO N CEPT: cosmological neutrino simulations from the non-linear Boltzmann hierarchy
journal, February 2019

The one-dimensional power spectrum from the SDSS DR14 Lyα forests
journal, July 2019

An efficient and accurate hybrid method for simulating non-linear neutrino structure
journal, August 2018

How to add massive neutrinos to your ΛCDM simulation – extending cosmology rescaling algorithms
journal, September 2019

Cosmological N -body simulations with suppressed variance
journal, May 2016

Cosmology with massive neutrinos I: towards a realistic modeling of the relation between matter, haloes and galaxies
text, January 2013

Suite of Hydrodynamical Simulations for the Lyman-Alpha Forest with Massive Neutrinos
text, January 2014

Physical effects involved in the measurements of neutrino masses with future cosmological data
text, January 2016

Consistent modelling of the meta-galactic UV background and the thermal/ionization history of the intergalactic medium
text, January 2018

Inferring the dark matter power spectrum from the Lyman-alpha forest in high-resolution QSO absorption spectra
text, January 2004