A differential DM method using same-sky localized FRBs removes Milky Way contributions without Galactic models and produces a different constraint on Γ ≡ Ω_b H_0 f_d from current data compared to conventional approaches.
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FRB dispersion measures combined with non-parametric H(z) reconstruction yield Ω_b h² = 0.02236 ± 0.00090, agreeing with BBN and Planck CMB to within 0.05%.
Combining 104 FRBs with CC, SNe, and BAO data yields 10-43% tighter constraints on Omega_b, H0, and dark energy parameters in LambdaCDM, wCDM, CPL, and three f(R) models, with modest preference for extensions over LambdaCDM.
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Estimating Cosmological Parameters from Localized Fast Radio Bursts: A Method for Removing Milky Way Dispersion-Measure Contributions
A differential DM method using same-sky localized FRBs removes Milky Way contributions without Galactic models and produces a different constraint on Γ ≡ Ω_b H_0 f_d from current data compared to conventional approaches.
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Constraints on the baryon density from fast radio bursts using a non-parametric reconstruction of the Hubble parameter
FRB dispersion measures combined with non-parametric H(z) reconstruction yield Ω_b h² = 0.02236 ± 0.00090, agreeing with BBN and Planck CMB to within 0.05%.
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Constraints on Dark Energy and Modified Gravity Models from Fast Radio Bursts and Late-Time Geometric Probes
Combining 104 FRBs with CC, SNe, and BAO data yields 10-43% tighter constraints on Omega_b, H0, and dark energy parameters in LambdaCDM, wCDM, CPL, and three f(R) models, with modest preference for extensions over LambdaCDM.
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