DESI DR2 combined with CC, SNIa and CMB priors give H0≈63–64 km s−1 Mpc−1 for flat/non-flat DGP and ΔAIC>100 against ΛCDM, strongly disfavoring the model.
Supernovae, CMB, and Gravitational Leakage into Extra Dimensions
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abstract
We discuss observational constraints coming from CMB and type Ia supernovae, for the model of accelerated universe produced by gravitational leakage into extra dimensions. Our fits indicate that the model is currently in agreement with the data. We also give the equations governing the evolution of cosmological perturbations. Future observations will be able to severely constrain the model.
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astro-ph.CO 1years
2026 1verdicts
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Cosmological Constraints on the DGP Model in light of DESI DR2 2025 Data
DESI DR2 combined with CC, SNIa and CMB priors give H0≈63–64 km s−1 Mpc−1 for flat/non-flat DGP and ΔAIC>100 against ΛCDM, strongly disfavoring the model.