Measuring neutrino masses with a future galaxy survey

Abstract

We perform a detailed forecast on how well a Euclid-like photometric galaxy and cosmic shear survey will be able to constrain the absolute neutrino mass scale. Adopting conservative assumptions about the survey specifications and assuming complete ignorance of the galaxy bias, we estimate that the minimum mass sum of sum m_nu ~ 0.06 eV in the normal hierarchy can be detected at 1.5 sigma to 2.5 sigma significance, depending on the model complexity, using a combination of galaxy and cosmic shear power spectrum measurements in conjunction with CMB temperature and polarisation observations from Planck. With better knowledge of the galaxy bias, the significance of the detection could potentially reach 5.4 sigma. Interestingly, neither Planck+shear nor Planck+galaxy alone can achieve this level of sensitivity; it is the combined effect of galaxy and cosmic shear power spectrum measurements that breaks the persistent degeneracies between the neutrino mass, the physical matter density, and the Hubble parameter. Notwithstanding this remarkable sensitivity to sum m_nu, Euclid-like shear and galaxy data will not be sensitive to the exact mass spectrum of the neutrino sector; no significant bias (< 1 sigma) in the parameter estimation is induced by fitting inaccurate models of the neutrino mass splittings to the mock data, nor does the goodness-of-fit of these models suffer any significant degradation relative to the true one (Delta chi_eff ^2< 1).

v1: 29 pages, 10 figures. v2: 33 pages, 12 figures; added sections on shape evolution and constraints in more complex models, accepted for publication in JCAP

References in corpus (13)

• Global status of neutrino oscillation parameters after Neutrino-2012
• The Shear TEsting Programme 2: Factors affecting high precision weak lensing analyses
• Intrinsic galaxy alignments from the 2SLAQ and SDSS surveys: luminosity and redshift scalings and implications for weak lensing surveys
• COSMOS: 3D weak lensing and the growth of structure
• Probing cosmological parameters with the CMB: Forecasts from full Monte Carlo simulations
• Cosmology seeking friendship with sterile neutrinos
• Finding Evidence for Massive Neutrinos using 3D Weak Lensing
• Separating intrinsic alignment and galaxy-galaxy lensing
• Distance, Growth Factor, and Dark Energy Constraints from Photometric Baryon Acoustic Oscillation and Weak Lensing Measurements
• Observational constraints on cosmic neutrinos and dark energy revisited
• Nonlinear corrections to the cosmological matter power spectrum and scale-dependent galaxy bias: implications for parameter estimation
• Determining neutrino properties using future galaxy redshift surveys
• Effects of CMB temperature uncertainties on cosmological parameter estimation

Cited by in corpus (66)

• Unveiling $\nu$ secrets with cosmological data: neutrino masses and mass hierarchy
• Global constraints on absolute neutrino masses and their ordering
• Neutrino Physics from the Cosmic Microwave Background and Large Scale Structure
• DESI and other dark energy experiments in the era of neutrino mass measurements
• Towards a cosmological neutrino mass detection
• Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects
• Updated results on neutrino mass and mass hierarchy from cosmology with Planck 2018 likelihoods
• Neutrino masses and cosmological parameters from a Euclid-like survey: Markov Chain Monte Carlo forecasts including theoretical errors
• Exploring Cosmic Origins with CORE: Cosmological Parameters
• On the most constraining cosmological neutrino mass bounds
• A new life for sterile neutrinos: resolving inconsistencies using hot dark matter
• The promising future of a robust cosmological neutrino mass measurement
• Neutrino masses and their ordering: Global Data, Priors and Models
• Light and Superlight Sterile Neutrinos in the Minimal Radiative Inverse Seesaw Model
• Physical effects involved in the measurements of neutrino masses with future cosmological data
• Axion hot dark matter bounds after Planck
• Cosmology in the era of Euclid and the Square Kilometre Array
• Sterile Neutrinos: Cosmology vs Short-BaseLine Experiments
• Upper Bound of Neutrino Masses from Combined Cosmological Observations and Particle Physics Experiments
• Bias due to neutrinos must not uncorrect'd go
• Non-linear evolution of the cosmic neutrino background
• Cosmology and the neutrino mass ordering
• Constraints on the neutrino mass and mass hierarchy from cosmological observations
• Two-zero Majorana textures in the light of the Planck results
• Long Range Interactions in Cosmology: Implications for Neutrinos
• Constraining Neutrino Mass with the Tomographic Weak Lensing Bispectrum
• Strong Bayesian Evidence for the Normal Neutrino Hierarchy
• Neutrino masses and beyond-$\Lambda$CDM cosmology with LSST and future CMB experiments
• DEMNUni: Massive neutrinos and the bispectrum of large scale structures
• Euclid: Cosmological forecasts from the void size function
• Biases from neutrino bias: to worry or not to worry?
• A novel approach to quantifying the sensitivity of current and future cosmological datasets to the neutrino mass ordering through Bayesian hierarchical modeling
• Distinguishing between Neutrinos and time-varying Dark Energy through Cosmic Time
• Dark Radiation candidates after Planck
• Higher-order massive neutrino perturbations in large-scale structure
• Future cosmological sensitivity for hot dark matter axions
• (Lack of) Cosmological evidence for dark radiation after Planck
• Exploring neutrino mass and mass hierarchy in interacting dark energy models
• Higher-order initial conditions with massive neutrinos
• Systematic errors in the measurement of neutrino masses due to baryonic feedback processes: Prospects for stage IV lensing surveys
• Neutrinos secretly converting to lighter particles to please both KATRIN and the cosmos
• Neutrino mass and dark energy constraints from redshift-space distortions
• Constraining neutrino properties with a Euclid-like galaxy cluster survey
• DEMNUni: disentangling dark energy from massive neutrinos with the void size function
• Quantifying the tension between cosmological and terrestrial constraints on neutrino masses
• DEMNUni: The imprint of massive neutrinos on the cross-correlation between cosmic voids and CMB lensing
• 3D Weak Gravitational Lensing of the CMB and Galaxies
• Spoon or slide? The non-linear matter power spectrum in the presence of massive neutrinos
• Tests of Neutrino and Dark Radiation Models from Galaxy and CMB surveys
• Linear bias and halo occupation distribution of emission line galaxies from Nancy Grace Roman Space Telescope
• Strong thermal leptogenesis and the absolute neutrino mass scale
• General Relativistic Corrections to the Weak Lensing Convergence Power Spectrum
• Cosmological search for sterile neutrinos after Planck 2018
• Massive neutrinos and degeneracies in Lyman-alpha forest simulations
• Neutrinos and dark energy constraints from future galaxy surveys and CMB lensing information
• Supersymmetric $SO(10)$-inspired leptogenesis and a new $N_2$-dominated scenario
• How CMB and large-scale structure constrain chameleon interacting dark energy
• Exploring neutrino interactions in light of present and upcoming galaxy surveys
• Daughters mimic sterile neutrinos (almost!) perfectly
• Probing Neutrinos from Planck and Forthcoming Galaxy Redshift Surveys
• Bayesian model selection for dark energy using weak lensing forecasts
• Prospects for searching for sterile neutrinos with gravitational wave and $\gamma$-ray burst joint observations
• Constraining Neutrinos and Dark Energy with Galaxy Clustering in the Dark Energy Survey
• New parameter region in sterile neutrino searches: a scenario to alleviate cosmological neutrino mass bound and its testability at oscillation experiments
• Neutrino masses from CMB B-mode polarization and cosmic growth rate
• Neutrino parameters and the $N_2$-dominated scenario of leptogenesis