A Bayesian combination of local probes shows that a low matter density can accommodate local H0 and sigma8 values in LCDM when the BAO sound horizon is left free, but dynamical dark energy still faces tensions with Pantheon+ supernovae.
H0 tension in Tsallis and Renyi statistics
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abstract
Motivated by recent attempts to study the implications of Tsallis and Renyi statistics in gravitational, cosmological, and astrophysical systems, the possible relationships between H0 tension and generalized statistics are explored. It is obtained that, in the light of H0 tension, the energytime uncertainty relations in Tsallis and Renyi statistics constrain the values of Tsallis and Renyi parameters. Hence, the way to find the footprints of non-extensivity in the universe is paved.
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astro-ph.CO 1years
2025 1verdicts
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The case for a low dark matter density in dynamical dark energy model from local probes
A Bayesian combination of local probes shows that a low matter density can accommodate local H0 and sigma8 values in LCDM when the BAO sound horizon is left free, but dynamical dark energy still faces tensions with Pantheon+ supernovae.