Running Hubble tension and a H0 diagnostic

2020/11/30 by Chethan Krishnan, Eoin Ó Colgáin, E. Ó Colgáin +2 · 1 citation
Physics and Astronomy · #Age of the universe #Astrophysics #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Equation of state #Friedmann–Lemaître–Robertson–Walker metric #Galaxies: Formation, Evolution, Phenomena #Galaxy #Hubble's law #Lambda #Metric expansion of space #Physics #Quantum mechanics #Redshift #Scale factor (cosmology) #Tension (geology) #Theoretical physics #Universe #astro-ph.CO #hep-th

paper · pdf · doi:10.1103/physrevd.103.103509

published as Phys. Rev. D 103, 103509 (2021) · 6 pages, 5 plots, v2: references added, v3: matches published version

openalex publication_date 2021/05/10 · arxiv created 2021/05/12 · arxiv updated 2021/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Hubble tension is routinely presented as a mismatch between the Hubble constant H₀ determined locally and a value inferred from the flat \mathrm\ensuremathΛCDM cosmology. In essence, the tension boils down to a disagreement between two numbers. Here, assuming the tension is cosmological in origin, we predict that within flat \mathrm\ensuremathΛCDM there should be other inferred values of H₀, and that a ``running of H₀ with redshift'' can be expected. These additional determinations of H₀ may be traced to a difference between the effective equation of state (EoS) of the Universe within the Friedmann-Lema\^\itre-Robertson-Walker (FLRW) cosmology framework and the current standard model. We introduce a diagnostic that flags such a running of H₀.

Citations

• Consistency Tests for the Cosmological Constant
• Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report
• Baryon acoustic oscillations in the Lyαforest of BOSS DR11 quasars
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
• The Hubble Hunter's Guide
• Is there an early Universe solution to Hubble tension?
• Early dark energy does not restore cosmological concordance
• A Lockdown Perspective on the Hubble Tension (with comments from the SH0ES team)
• Elucidating cosmological model dependence with H₀
• Planck 2018 results: VI. Cosmological parameters

Cited by

• Quintessential inflation and cosmological seesaw mechanism: reheating and observational constraints