High-redshift datasets constrain the local void gravitational redshift parameter z0 to be consistent with zero but allow the value needed for Hubble tension solution.
G., Scolnic, D., Anand, G
6 Pith papers cite this work. Polarity classification is still indexing.
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BayeSN analysis of ZTF Type Ia supernovae confirms a ~0.1 mag intrinsic environmental step in standardized brightness that is not explained by differences in dust extinction properties.
JWST TRGB distances to 10 SN Ia hosts update calibrations for 11 SNe yielding H0 of 68.4-69.6 km/s/Mpc and show modest shifts when combined with prior HST data.
Stellar age analysis of a large Galactic sample gives a cosmic age of 13.73 Gyr, consistent with LambdaCDM but inconsistent with some Hubble tension resolutions implying 12.9 Gyr.
Baby-universe absorption model accounts for late-time acceleration and yields w(z) < -1 without a cosmological constant.
A review of late-universe models concludes that DESI BAO plus uncalibrated supernovae data indicate the Hubble tension originates in new low-redshift physics.
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Can a late-time cosmological model based on baby universe absorption explain the z-variation of w?
Baby-universe absorption model accounts for late-time acceleration and yields w(z) < -1 without a cosmological constant.