Tensions between the early and late Universe

By L. Verde, T. Treu, A. Riess. Nature Astronomy, 2019

1,137 citations recorded by the source corpus.

A Kavli Institute for Theoretical Physics workshop in July 2019 directed attention to the Hubble constant discrepancy. New results showed that it does not appear to depend on the use of any one method, team or source. Proposed solutions focused on the pre-recombination era.

Subfields: Astronomy and Astrophysics, Atmospheric Science

View Paper: https://www.semanticscholar.org/paper/8cd29ef0caed97c93b7e17f767192065ab0c2882

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Citations in the corpus

A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km s−1 Mpc−1 Uncertainty from the Hubble Space Telescope and the SH0ES Team (2021, background): “Other precise measures of H0 in the local universe from the distance– redshift relation generally range from 70 to 75, and those grounded in the pre-recombination version of ΛCDM range from 67 to 68, and have been extensively reviewed (Verde et al. 2019; Di Valentino et al. 2021; Shah et al. 2021).”
The Hubble Tension and Early Dark Energy (2022, background): “Fortunately, there are excellent recent and broad reviews on various aspects of the Hubble tension (16, 17, 18, 19, 20, 21) and the various types of models that have been invoked to explain it (19, 22).”
A CMB search for the neutrino mass mechanism and its relation to the Hubble tension (2019, background): “Depending both on the choice of distance calibration and how one chooses to combine datasets, the outstanding tension is determined to be at the level of ∼ 4−6σ [52, 53].”
Constraining early dark energy with large-scale structure (2020, background): “The persistent and growing discrepancy in the value of the Hubble constant, H0, inferred from different observations [2], if taken at face value, presents a serious challenge to the standard cosmological model.”
Refined bounds on MeV-scale thermal dark sectors from BBN and the CMB (2019, methodology): “Since the disagreement between local [119] and CMB determinations of the Hubble constant [7] could potentially be attributed to additional contributions to Neff [120, 121], we consider two data sets: i) in which we consider the 2018 Planck baseline TTTEEE+lowE analysis and ii) where we combine Planc”
Setting the Stage for Cosmic Chronometers. II. Impact of Stellar Population Synthesis Models Systematics and Full Covariance Matrix (2020, background): “…parameter (Moresco et al. 2016a; Zhao et al. 2017; Yang et al. 2018), and, more recently, also in the context of the Hubble constant controversy (Verde et al. 2019) to provide an independent constraint on H0 (Gómez-Valent & Amendola 2018; Haridasu et al. 2018; Jimenez et al. 2019).”
H0LiCOW – XIII. A 2.4 per cent measurement of H0 from lensed quasars: 5.3σ tension between early- and late-Universe probes (2019, background): “There also appears to be a growing dichotomy when the different H0 probes are split into those anchored by the early-Universe (i.e. CMB), which favour a lower H0, and those based on late-Universe probes, which favour a higher H0 (e.g. Verde et al. 2019).”
The Megamaser Cosmology Project. XIII. Combined Hubble Constant Constraints (2020, background): “We test the prior empirical claim that the local value of H0 exceeds the early-Universe value (e.g., Riess et al. 2019; Wong et al. 2019; Verde et al. 2019) by calculating the probability of rejecting the null hypothesis that our measurement does not exceed Planck’s, i.e., P (H0 ≤ H0,Planck) = ∫ ∞…”
Curvature tension: Evidence for a closed universe (2019, background): “Observations of the early and late time universe give undeniably inconsistent predictions for the present day value of the expansion rate [1], a phenomenon”
Hubble Space Telescope Observations of Mira Variables in the SN Ia Host NGC 1559: An Alternative Candle to Measure the Hubble Constant (2019, methodology): “Figure 11 shows a set of different approaches recently used to calibrate the SN Ia distance ladder and measure H0 as recently reviewed by Verde et al. (2019).”
Toward a Better Understanding of Cosmic Chronometers: A New Measurement of H(z) at z ∼ 0.7 (2021, background): “Recently, much effort has been devoted to understanding the ∼ 4σ tension between the value of the Hubble constant H0 measured in the local Universe and the one inferred from the cosmic microwave background (CMB) analysis (see Verde et al. 2019; Di Valentino et al. 2021).”
Limits on wCDM from the EFTofLSS with the PyBird code (2020, result): “Since the results from [1, 2, 3] are compatible with Planck, they contribute to shed light on the so-called Hubble tension (see a review in [6]).”