Can the quasi-molecular mechanism of recombination decrease the Hubble tension?
arXiv:2001.05874 · doi:10.1016/j.dark.2021.100841
Abstract
In the recently suggested non-standard, quasi-molecular mechanism of recombination, the presence of neighboring proton increases the ionization energy and decreases the final recombination rate of hydrogen. Both these two effects can lead to the larger value of the present expansion rate of the universe obtained using CMB data and standard cosmological model, and thus are able to reduce or resolve the Hubble tension problem. We note also that due to the quasi-molecular channel the recombination began earlier, what potentially can solve the sigma-eight tension, since the CMB-predicted value of the late matter density will be decreased.
arXiv commentThe journal version
References in corpus (37)
- Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
- H0LiCOW XIII. A 2.4% measurement of from lensed quasars: tension between early and late-Universe probes
- Early Dark Energy Can Resolve The Hubble Tension
- Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with LambdaCDM
- The trouble with
- The Hubble Hunter's Guide
- A New Calculation of the Recombination Epoch
- Early dark energy, the Hubble-parameter tension, and the string axiverse
- The Hubble Constant
- Oscillating scalar fields and the Hubble tension: a resolution with novel signatures
- The Neutrino Puzzle: Anomalies, Interactions, and Cosmological Tensions
- Interacting dark energy in the early 2020s: a promising solution to the and cosmic shear tensions
- Tale of stable interacting dark energy, observational signatures, and the tension
- Early Dark Energy Does Not Restore Cosmological Concordance
- H0 Revisited
- Does the Hubble constant tension call for new physics?
- Early dark energy from massive neutrinos -- a natural resolution of the Hubble tension
- Acoustic Dark Energy: Potential Conversion of the Hubble Tension
- A gravitational-wave measurement of the Hubble constant following the second observing run of Advanced LIGO and Virgo
- STRIDES: a 3.9 per cent measurement of the Hubble constant from the strong lens system DES J0408-5354
- Constraining the Self-Interacting Neutrino Interpretation of the Hubble Tension
- Tension between the power spectrum of density perturbations measured on large and small scales
- The Dawn of Chemistry
- A local resolution of the Hubble tension: The impact of screened fifth forces on the cosmic distance ladder
- Thermal Friction as a Solution to the Hubble Tension
- Axion-Dilaton Destabilization and the Hubble Tension
- How well do we understand cosmological recombination?
- Reconciling Planck results with low redshift astronomical measurements
- Signals From the Epoch of Cosmological Recombination
- Emerging spatial curvature can resolve the tension between high-redshift CMB and low-redshift distance ladder measurements of the Hubble constant
- Can Non-standard Recombination Resolve the Hubble Tension?
- BAO signatures in the 2-point angular correlations and the Hubble tension
- Investigating the Hubble Constant Tension -- Two Numbers in the Standard Cosmological Model
- Quintessence Axion Dark Energy and a Solution to the Hubble Tension
- What is the distance to the CMB?
- Super-CMB fluctuations and the Hubble tension
- Influence of a quasi-molecular mechanism of recombination on the formation of hydrogen in the early universe