Primordial Helium Abundance from CMB: a constraint from recent observations and a forecast

Abstract

We studied a constraint on the primordial helium abundance Y_p from current and future observations of CMB. Using the currently available data from WMAP, ACBAR, CBI and BOOMERANG, we obtained the constraint as Y_p = 0.25^{+0.10}_{-0.07} at 68% C.L. We also provide a forecast for the Planck experiment using the Markov chain Monte Carlo approach. In addition to forecasting the constraint on Y_p, we investigate how assumptions for Y_p affect constraints on the other cosmological parameters.

17 pages, 6 figures, 4 tables; update after WMAP 5-year results, accepted for publication in Phys. Rev. D

References in corpus (39)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• A New Calculation of the Recombination Epoch
• Big-Bang Nucleosynthesis Predictions for Precision Cosmology
• The Sunyaev-Zel'dovich angular power spectrum as a probe of cosmological parameters
• How exactly did the Universe become neutral?
• New BBN limits on Physics Beyond the Standard Model from He4
• Measurement of the neutron lifetime using a gravitational trap and a low-temperature Fomblin coating
• A Measurement of the CMB <EE> Spectrum from the 2003 Flight of BOOMERANG
• CMB Observables and Their Cosmological Implications
• A Realistic Determination of the Error on the Primordial Helium Abundance: Steps Toward Non-Parametric Nebular Helium Abundances
• Probing cosmological parameters with the CMB: Forecasts from full Monte Carlo simulations
• A Measurement of the Angular Power Spectrum of the CMB Temperature Anisotropy from the 2003 Flight of Boomerang
• The Scientific Programme of Planck
• The primordial abundance of 4He: a self-consistent empirical analysis of systematic effects in a large sample of low-metallicity HII regions
• Efficient Cosmological Parameter Estimation from Microwave Background Anisotropies
• A measurement of the polarization-temperature angular cross power spectrum of the Cosmic Microwave Background from the 2003 flight of BOOMERANG
• Small-scale CMB Temperature and Polarization Anisotropies due to Patchy Reionization
• Induced two-photon decay of the 2s level and the rate of cosmological hydrogen recombination
• Implications of the Cosmic Background Imager Polarization Data
• Big Bang Nucleosynthesis with a New Neutron Lifetime
• On the Evolution of Helium in Blue Compact Galaxies
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP)Observations: Beam Maps and Window Functions
• Improved Measurements of the CMB Power Spectrum with ACBAR
• Using BBN in cosmological parameter extraction from CMB: a forecast for Planck
• Primordial helium recombination I: feedback, line transfer, and continuum opacity
• Cosmological hydrogen recombination: populations of the high level sub-states
• Primordial Helium Abundance: A Reanalysis of the Izotov-Thuan Spectroscopic Sample
• The Cosmic Microwave Background and the Ionization History of the Universe
• Precision era of the kinetic Sunyaev-Zeldovich effect: simulations, analytical models and observations and the power to constrain reionization
• Constraining the helium abundance with CMB
• Primordial helium recombination III: Thomson scattering, isotope shifts, and cumulative results
• Revisiting the Constraint on the Helium Abundance from CMB
• Primordial helium recombination II: two-photon processes
• Solving the discrepancy among the light elements abundances and WMAP
• Precision Primordial ${}^4$He Measurement with CMB Experiments
• Neutron beta-decay, Standard Model and cosmology

Cited by in corpus (26)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Primordial Nucleosynthesis: from precision cosmology to fundamental physics
• The Atacama Cosmology Telescope: Cosmological Parameters from the 2008 Power Spectra
• The primordial abundance of 4He: evidence for non-standard big bang nucleosynthesis
• ACTPol: A polarization-sensitive receiver for the Atacama Cosmology Telescope
• The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectrum at 148 and 218 GHz from the 2008 Southern Survey
• Exploring Cosmic Origins with CORE: Cosmological Parameters
• CMB Polarization can constrain cosmology better than CMB temperature
• Updated Constraints and Forecasts on Primordial Tensor Modes
• PArthENoPE Revolutions
• Primordial Helium And the Cosmic Background Radiation
• Constraining Fundamental Physics with Future CMB Experiments
• Probing the Effective Number of Neutrino Species with Cosmic Microwave Background
• Single-field inflation constraints from CMB and SDSS data
• Probing neutrino physics with a self-consistent treatment of the weak decoupling, nucleosynthesis, and photon decoupling epochs
• Neutrino mass from cosmology: Impact of high-accuracy measurement of the Hubble constant
• Constraints on neutrino masses from WMAP5 and BBN in the lepton asymmetric universe
• Big Bang Nucleosynthesis with Independent Neutrino Distribution Functions
• Using Big Bang Nucleosynthesis to Extend CMB Probes of Neutrino Physics
• On a new parameter to estimate the helium content in old stellar systems
• Constraining Light Gravitino Mass from Cosmic Microwave Background
• Big bang nucleosynthesis and early dark energy in light of the EMPRESS $Y_p$ results and the $H_0$ tension
• Variation of the fine structure constant in the light of recent helium abundance measurement
• Interacting light thermal-relic dark matter: self-consistent cosmological bounds
• Measurements of 4He in Metal-Poor Extragalactic HII Regions: the Primordial Helium Abundance and the Delta Y / Delta O Ratio