Neutrinos help reconcile Planck measurements with both Early and Local Universe

Abstract

In light of the recent BICEP2 B-mode polarization detection, which implies a large inflationary tensor-to-scalar ratio r_{0.05}=0.2^{+0.07}_{-0.05}, we re-examine the evidence for an extra sterile massive neutrino, originally invoked to account for the tension between the cosmic microwave background (CMB) temperature power spectrum and local measurements of the expansion rate H0 and cosmological structure. With only the standard active neutrinos and power-law scalar spectra, this detection is in tension with the upper limit of r<0.11 (95% confidence) from the lack of a corresponding low multipole excess in the temperature anisotropy from gravitational waves. An extra sterile species with the same energy density as is needed to reconcile the CMB data with H0 measurements can also alleviate this new tension. By combining data from the Planck and ACT/SPT temperature spectra, WMAP9 polarization, H_0, baryon acoustic oscillation and local cluster abundance measurements with BICEP2 data, we find the joint evidence for a sterile massive neutrino increases to DeltaNeff=0.98\pm 0.26 for the effective number and ms= 0.52\pm 0.13 eV for the effective mass or 3.8 sigma and 4 sigma evidence respectively. We caution the reader that these results correspond to a joint statistical evidence and, in addition, astrophysical systematic errors in the clusters and H0 measurements, and small-scale CMB data could weaken our conclusions.

arXiv comment8 pages, 9 figures; version accepted for publication in Phys. Rev. D

References in corpus (35)

• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
• A 3% Solution: Determination of the Hubble Constant with the Hubble Space Telescope and Wide Field Camera 3
• The WiggleZ Dark Energy Survey: mapping the distance-redshift relation with baryon acoustic oscillations
• A 2% Distance to z=0.35 by Reconstructing Baryon Acoustic Oscillations - I : Methods and Application to the Sloan Digital Sky Survey
• A Measurement of the Damping Tail of the Cosmic Microwave Background Power Spectrum with the South Pole Telescope
• Global fit to three neutrino mixing: critical look at present precision
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: a large sample of mock galaxy catalogues
• Toward an Understanding of Foreground Emission in the BICEP2 Region
• The Atacama Cosmology Telescope: Temperature and Gravitational Lensing Power Spectrum Measurements from Three Seasons of Data
• Constraints on Cosmology from the Cosmic Microwave Background Power Spectrum of the 2500 ${\mathrm{deg}}^2$ SPT-SZ Survey
• Evidence for massive neutrinos from CMB and lensing observations
• A measurement of secondary cosmic microwave background anisotropies with two years of South Pole Telescope observations
• $\nu \Lambda$CDM: Neutrinos help reconcile Planck with the Local Universe
• Perturbation Spectra from Intermediate Inflation
• Cosmology with massive neutrinos I: towards a realistic modeling of the relation between matter, haloes and galaxies
• A new life for sterile neutrinos: resolving inconsistencies using hot dark matter
• Relic Neutrinos, thermal axions and cosmology in early 2014
• Intermediate inflation in light of the three-year WMAP observations
• No new cosmological concordance with massive sterile neutrinos
• Multi-Natural Inflation in Supergravity and BICEP2
• Did BICEP2 see vector modes? First B-mode constraints on cosmic defects
• Can topological defects mimic the BICEP2 B-mode signal?
• Can primordial magnetic fields be the origin of the BICEP2 data?
• The LSND and MiniBooNE Oscillation Searches at High $\Delta m^2$
• The Knotted Sky II: Does BICEP2 require a nontrivial primordial power spectrum?
• Suppressing the impact of a high tensor-to-scalar ratio on the temperature anisotropies
• A Comparative Study of Local Galaxy Clusters: I. Derived X-ray Observables
• Steps to Reconcile Inflationary Tensor and Scalar Spectra
• (Lack of) Cosmological evidence for dark radiation after Planck
• Cosmological parameters constraints from galaxy cluster mass function measurements in combination with other cosmological data
• Compensation for large tensor modes with iso-curvature perturbations in CMB anisotropies
• Observational Limits on Patchy Reionization: Implications for B-modes
• Killing the Straw Man: Does BICEP Prove Inflation at the GUT Scale?

Cited by in corpus (83)

• A 2.4% Determination of the Local Value of the Hubble Constant
• Challenges for $\Lambda$CDM: An update
• The trouble with $H_0$
• Weighing the Giants IV: Cosmology and Neutrino Mass
• Cosmological implications of ultra-light axion-like fields
• Acoustic Dark Energy: Potential Conversion of the Hubble Tension
• A new determination of the primordial He abundance using the HeI 10830A emission line: cosmological implications
• Resolving the Hubble Tension with New Early Dark Energy
• Sterile neutrinos in cosmology
• A blinded determination of $H_0$ from low-redshift Type Ia supernovae, calibrated by Cepheid variables
• Blue Tensor Spectrum from Particle Production during Inflation
• Cosmology with self-interacting sterile neutrinos and dark matter - A pseudoscalar model
• Calibrating the cosmic distance scale ladder: the role of the sound horizon scale and the local expansion rate as distance anchors
• Search for sterile neutrinos in holographic dark energy cosmology: Reconciling Planck observation with the local measurement of the Hubble constant
• $\nu \Lambda$MDM: A Model for Sterile Neutrino and Dark Matter Reconciles Cosmological and Neutrino Oscillation Data after BICEP2
• Structure formation with massive neutrinos: going beyond linear theory
• Comparison of dark energy models after Planck 2015
• Sterile neutrinos help reconcile the observational results of primordial gravitational waves from Planck and BICEP2
• Impacts of dark energy on weighing neutrinos: mass hierarchies considered
• Impacts of dark energy on weighing neutrinos after Planck 2015
• Constraints on massive neutrinos from the pairwise kinematic Sunyaev-Zel'dovich effect
• Testing H0 in Acoustic Dark Energy Models with Planck and ACT Polarization
• Light sterile neutrinos after BICEP-2
• Banana Split: Testing the Dark Energy Consistency with Geometry and Growth
• A search for sterile neutrinos with the latest cosmological observations
• Constraints on secret neutrino interactions after Planck
• Neutrinos in the holographic dark energy model: constraints from latest measurements of expansion history and growth of structure
• Solar neutrino physics with low-threshold dark matter detectors
• Observational implications of mattergenesis during inflation
• Emergent Dark Energy, neutrinos and cosmological tensions
• Constraints on active and sterile neutrinos in an interacting dark energy cosmology
• Neutrinos and dark energy after Planck and BICEP2: data consistency tests and cosmological parameter constraints
• Search for sterile neutrinos in a universe of vacuum energy interacting with cold dark matter
• Ruling out the power-law form of the scalar primordial spectrum
• Higher-order massive neutrino perturbations in large-scale structure
• Axion monodromy inflation with multi-natural modulations
• Measuring growth index in a universe with massive neutrinos: A revisit of the general relativity test with the latest observations
• Spectral distortions from the dissipation of tensor perturbations
• Cosmology with varying fundamental constants from hyperlight, coupled scalars
• Exploring neutrino mass and mass hierarchy in interacting dark energy models
• Searching for sterile neutrinos in dynamical dark energy cosmologies
• Constraining early dark energy with gravitational waves before recombination
• Hidden Treasures: sterile neutrinos as dark matter with miraculous abundance, structure formation for different production mechanisms, and a solution to the sigma-8 problem
• On the current status of Modified Gravity
• A Combined View of Sterile-Neutrino Constraints from CMB and Neutrino Oscillation Measurements
• Statistical tests of sterile neutrinos using cosmology and short-baseline data
• Parameter splitting in dark energy: is dark energy the same in the background and in the cosmic structures?
• Dark Matter from Late Invisible Decays to/of Gravitinos
• Dark Radiation in Anisotropic LARGE Volume Compactifications
• Inflationary Features and Shifts in Cosmological Parameters from Planck 2015 Data
• Measuring growth index in a universe with sterile neutrinos
• Probing $f(R)$ cosmology with sterile neutrinos via measurements of scale-dependent growth rate of structure
• Accuracy of cosmological parameters using the baryon acoustic scale
• Constraining light sterile neutrino mass with the BICEP2/Keck Array 2014 B-mode polarization data
• Dynamical Fractional Chaotic Inflation -- Dynamical Generation of a Fractional Power-Law Potential for Chaotic Inflation
• A search for sterile neutrinos in interacting dark energy models using DESI baryon acoustic oscillations and DES supernovae data
• Multicomponent Dark Matter in Radiative Seesaw Models
• 3.5 keV X-ray line and R-Parity Conserving Supersymmetry
• Inflation that runs naturally: Gravitational waves and suppression of power at large and small scales
• More Is Different: Reconciling eV Sterile Neutrinos with Cosmological Mass Bounds
• Cepheid Variables in the Maser-Host Galaxy NGC 4258
• The Not-So-Sterile 4th Neutrino: Constraints on New Gauge Interactions from Neutrino Oscillation Experiments
• Linking the BICEP2 result and the hemispherical power asymmetry through spatial variation of $r$
• Negative running prevents eternal inflation
• Cluster counts III. $\Lambda$CDM extensions and the cluster tension
• Reducing the $H_0$ Tension with Exponential Acoustic Dark Energy
• Generalized Brans-Dicke theories in light of evolving dark energy
• Cluster counts. II. Tensions, massive neutrinos, and modified gravity
• Calibrating Long Period Variables as Standard Candles with Machine Learning
• Young and Intermediate-age Distance Indicators
• Impact of distance determinations on Galactic structure. II. Old tracers
• Possible Resolution of the Hubble Tension with Weyl Invariant Gravity
• The Darkness of Spin-0 Dark Radiation
• Relic Neutrino Degeneracies and Their Impact on Cosmological Parameters
• Distant foreground and the Planck-derived Hubble constant
• Muon g-2 in GMSB with Adjoint Messengers
• Dark Photon as Fractional Cosmic Neutrino Masquerader
• Prospects for searching for sterile neutrinos with gravitational wave and $\gamma$-ray burst joint observations
• Effect of neutrino rest mass on ionization equilibrium freeze-out
• Equality scale-based and sound horizon-based analysis of the Hubble tension
• Neutrinos in Astrophysics and Cosmology: Theoretical Advanced Study Institute (TASI) 2020 Lectures
• Robustness of cosmological axion mass limits
• Inflation after Planck and BICEP2