A Pop III.1-driven early ionization phase at z=20 yields τ=0.087 consistent with pkSZ and Lyα constraints, potentially resolving BAO-CMB tensions on neutrino mass.
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Planck-allowed reionisation histories split into early and late classes whose kSZ spectra stay separable under modelling uncertainties, and a ~0.4 μK² measurement at ℓ~2000 would settle the choice.
Lensing amplitude A_L deviates from 1 at up to 3.06 sigma in combined datasets while other phenomenological amplitudes remain consistent with Lambda CDM or are poorly constrained.
citing papers explorer
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Fireworks at Cosmic Dawn: relieving BAO-CMB tensions with the Pop III.1 Flash
A Pop III.1-driven early ionization phase at z=20 yields τ=0.087 consistent with pkSZ and Lyα constraints, potentially resolving BAO-CMB tensions on neutrino mass.
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Discriminating Planck Reionisation Histories with the kSZ Effect
Planck-allowed reionisation histories split into early and late classes whose kSZ spectra stay separable under modelling uncertainties, and a ~0.4 μK² measurement at ℓ~2000 would settle the choice.
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Constraints on Phenomenological Amplitudes of CMB Anisotropy with Multi-Datasets
Lensing amplitude A_L deviates from 1 at up to 3.06 sigma in combined datasets while other phenomenological amplitudes remain consistent with Lambda CDM or are poorly constrained.