Using 12 carefully selected SNe Ia twins in the Hubble flow anchored to Cepheid and JAGB distances, the paper measures H0 = 72.38 ± 1.54 (stat) ± 1.33 (sys) km s^{-1} Mpc^{-1} and confirms the Hubble tension is real.
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DES supernova data alone give Omega_M = 0.352 +/- 0.017 in flat LambdaCDM and confirm acceleration at >5 sigma, with dark energy consistent with a cosmological constant to within ~2 sigma when combined with other probes.
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"SNe Ia twins" in the Hubble flow, and the determination of H0
Using 12 carefully selected SNe Ia twins in the Hubble flow anchored to Cepheid and JAGB distances, the paper measures H0 = 72.38 ± 1.54 (stat) ± 1.33 (sys) km s^{-1} Mpc^{-1} and confirms the Hubble tension is real.
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The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset
DES supernova data alone give Omega_M = 0.352 +/- 0.017 in flat LambdaCDM and confirm acceleration at >5 sigma, with dark energy consistent with a cosmological constant to within ~2 sigma when combined with other probes.