Results 101 to 110 of about 114,518 (203)

Can Inflation Resolve the Hubble Tension?

Universe
In this work, we investigate how a change in the sound horizon due to inflation may affect the value of H0. Performing an analysis using the measurements of BAO, SN Ia, H(z), CMB, and the local H0, we show that the modification in the sound horizon ...
Ione A. Silva, Edésio M. Barboza
doaj   +1 more source

A nuclear data approach for the Hubble constant measurements

EPJ Web of Conferences, 2017
An extraordinary number of Hubble constant measurements challenges physicists with selection of the best numerical value. The standard U.S. Nuclear Data Program (USNDP) codes and procedures have been applied to resolve this issue.
Pritychenko Boris
doaj   +1 more source

The Hubble constant troubled by dark matter in non-standard cosmologies. [PDF]

Sci Rep, 2022
Alcaniz JS, Neto JP, Queiroz FS, da Silva DR, Silva R, Silva R.   +5 more
europepmc   +1 more source

Observational Constraint on Spherical Inhomogeneity with CMB and Local Hubble Parameter

, 2018
We derive an observational constraint on a spherical inhomogeneity of the void centered at our position from the angular power spectrum of the cosmic microwave background(CMB) and local measurements of the Hubble parameter. The late time behaviour of the
Ichiki, Kiyotomo, Tokutake, Masato, Yoo, Chul-Moon   +2 more
core   +1 more source

Author Correction: The Hubble constant troubled by dark matter in non-standard cosmologies. [PDF]

Sci Rep, 2023
Alcaniz JS, Neto JP, Queiroz FS, da Silva DR, Silva R.   +4 more
europepmc   +1 more source

Blinded Mock Data Challenge for Gravitational-wave Cosmology. I. Assessing the Robustness of Methods Using Binary Black Hole Mass Spectrum

The Astrophysical Journal
Gravitational wave sources are standard sirens that provide an independent way to map the cosmic expansion history by combining with an independent redshift measurement, either from an electromagnetic counterpart for a bright siren or using different ...
Aman Agarwal, Ulyana Dupletsa, Konstantin Leyde, Suvodip Mukherjee, Benot Revenu, Juan Esteban Rivera, Antonio Enea Romano, Mohit Raj Sah, Sergio Vallejo-Peña, Adrian Avendano, Freija Beirnaert, Gergely Dalya, Miguel Cifuentes Espitia, Christos Karathanasis, Santiago Moreno- Gonzalez, Lucas Quiceno, Federico Stachurski, Juan Garcia-Bellido, Rachel Gray, Nicola Tamanini, Cezary Turski   +20 more
doaj   +1 more source

The shrinking Hubble constant

, 2006
This replacement corrects the method of separating components of red ...
openaire   +2 more sources

Refined Constraints on the Hubble Constant from Localized Fast Radio Bursts with Assessment of Systematic Effects

The Astrophysical Journal
The dispersion measure–redshift relation of fast radio bursts (FRBs) provides a valuable cosmological probe for constraining the Hubble constant, offering an independent measurement that could help resolve the ongoing Hubble tension.
Chenyuan Xu, Yi Feng, Jiaying Xu
doaj   +1 more source

Running Hubble constant: Evolutionary Dark Energy

Physics of the Dark Universe
8 pages, 3 ...
G. Montani, N. Carlevaro, M.G. Dainotti
openaire   +2 more sources

Domain Walls and Hubble constant Tension

Proceedings of Corfu Summer Institute 2023 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2023)
We present the idea that replacing the cosmological constant $Λ$ in the $Λ$CDM model by a distribution of walls, with very low tension compared to what one would expect from new physics, could help explaining the tension in the Hubble constant fits in the Standard Cosmological Model. Using parameters from our model for dark matter as macroscopic pearls,
Froggatt, Colin D., Nielsen, Holger Bech
openaire   +2 more sources