Is there really a Hubble tension?
Sign Up to like & getrecommendations! Published in 2021 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ac0f39
Abstract: The heliocentric redshifts (z hel) reported for 150 type Ia supernovae in the Pantheon compilation are significantly discrepant from their corresponding values in the JLA compilation. Both catalogues include corrections to the redshifts and magnitudes… read more here.
Keywords: hubble tension; mpc; really hubble; supernovae ... See more keywords
A radical solution to the Hubble tension problem
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2024/08/052
Abstract: The Hubble tension has proven to be stubbornly persistent, despite widespread efforts to relax it. As a possible resolution of this problem we propose a radical alternative to the way in which cosmological models are… read more here.
Keywords: hubble tension; solution hubble; tension problem; radical solution ... See more keywords
A new parametrization of Hubble function and Hubble tension
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2024/09/028
Abstract: We present a new parameterized Hubble function and employ observational data from Hubble, Pantheon, and Baryon Acoustic Oscillations to constrain model parameters. The proposed method is thoroughly validated against these datasets, demonstrating a robust fit… read more here.
Keywords: new parametrization; parametrization hubble; hubble function; hubble tension ... See more keywords
Investigating the Hubble tension and σ 8 discrepancy in f(Q) cosmology
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2024/10/052
Abstract: In this study, we incorporated a three-parameter family, of the metric incompatible modification of standard general relativity ω models into the Boltzmann code MGCLASS at both the background and perturbation levels, in order to conduct… read more here.
Keywords: tension discrepancy; hubble tension; discrepancy; cosmology ... See more keywords
Alleviating the Hubble tension using the Barrow holographic dark energy cosmology with Granda-Oliveros IR cut-off
Sign Up to like & getrecommendations! Published in 2024 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stae2257
Abstract: In this study, we investigate the Barrow holographic dark energy (BHDE) model with the Granda-Oliveros(G-O) infrared (IR) cut-off in the presence of neutrino masses, utilizing the latest observational data to address the Hubble tension. The… read more here.
Keywords: hubble tension; barrow holographic; cosmology; model ... See more keywords
The redshift dependence of the inferred H0 in a local void solution to the Hubble tension
Sign Up to like & getrecommendations! Published in 2024 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stae2758
Abstract: Galaxy number counts suggest that we are located within the Gpc-scale KBC void. The Hubble tension might arise due to gravitationally driven outflow from this void, as explored in detail by Haslbauer et al. We explore… read more here.
Keywords: redshift dependence; hubble tension; redshift; void ... See more keywords
Hubble tension in an anisotropic Universe
Sign Up to like & getrecommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staf1374
Abstract: We explore the Hubble tension within an anisotropic cosmological framework by revisiting the Bianchi type-I model introduced in Le Delliou et al. 2020. Motivated by ongoing debates surrounding back-reaction effects and observed anomalies in the cosmic… read more here.
Keywords: hubble tension; tension anisotropic; model; universe ... See more keywords
Itô calculus meets the Hubble tension: Effects of small-scale electron density fluctuations on the CMB anisotropies
Sign Up to like & getrecommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staf1465
Abstract: We develop a novel formalism to include the effect of electron density fluctuations at ultra small scales (well below the sound horizon at last scattering) on the observed anisotropies of the CMB. We treat the… read more here.
Keywords: electron density; history; hubble tension; cmb anisotropies ... See more keywords
Testing the local supervoid solution to the Hubble tension with direct distance tracers
Sign Up to like & getrecommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staf1571
Abstract: Several observational studies suggest that the local few hundred Mpc around the Local Group is significantly underdense based on source number counts in redshift space across much of the electromagnetic spectrum, particularly in near-infrared galaxy… read more here.
Keywords: distance; testing local; supervoid solution; hubble tension ... See more keywords
Oscillating scalar fields and the Hubble tension: A resolution with novel signatures
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.063523
Abstract: We present a detailed investigation of a subdominant oscillating scalar field [“early dark energy” (EDE)] in the context of resolving the Hubble tension. Consistent with earlier work, but without relying on fluid approximations, we find… read more here.
Keywords: field; oscillating scalar; scalar fields; scalar field ... See more keywords
Vacuum arbitrariness and the Hubble tension
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.083523
Abstract: We show that the energy density of the superhorizon modes released in a non-Bunch-Davies vacuum can be arbitrarily large during inflation and it decreases like ln(a)/a^4 in the subsequent radiation dominated era. This may constitute… read more here.
Keywords: vacuum arbitrariness; arbitrariness hubble; tension; hubble tension ... See more keywords