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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Semi-numerical simulations plus Fisher analysis show that REACH-like observations of the 21-cm global signal can place meaningful constraints on the mass and star-formation efficiency of Population III stars.
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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Inferring population III star properties from the 21-cm global signal
Semi-numerical simulations plus Fisher analysis show that REACH-like observations of the 21-cm global signal can place meaningful constraints on the mass and star-formation efficiency of Population III stars.