Results 121 to 130 of about 114,518 (203)

Determination of the Hubble Constant

open access: yes, 1996
Recent developments in the determination of H0 are reviewed in the context of the 3 following questions: 1) What is required to measure an accurate value of H0? Given the wide range of H0 values quoted in the current literature, is there any evidence that the situation has changed very much at all in the last couple of decades? And 3), is a measurement
openaire   +2 more sources

Testing the coupling of dark radiations in light of the Hubble tension

open access: yesEuropean Physical Journal C: Particles and Fields
We are studying the effects of Self-Interacting dark radiation (SIdr) on the evolution of the universe. Our main focus is on the cosmic microwave background (CMB) and how SIdr could potentially help resolve the Hubble tension.
Zhiyu Lu   +3 more
doaj   +1 more source

Time-Delay Cosmography: Measuring the Hubble Constant and Other Cosmological Parameters with Strong Gravitational Lensing. [PDF]

open access: yesSpace Sci Rev
Birrer S   +8 more
europepmc   +1 more source

Tension in the Hubble constant

open access: yes, 2017
There has been some hand-wringing of late about the tension between the value of the expansion rate of the universe – the famous Hubble constant, H <sub> 0 </sub> , measured directly from observed redshifts and distances, and that obtained by multi-parameter fits to the cosmic microwave background.
openaire   +1 more source

Two Dynamical Scenarios for Binned Master Sample Interpretation. [PDF]

open access: yesEntropy (Basel)
Montani G   +3 more
europepmc   +1 more source

Screened axio-dilaton cosmology: novel forms of early dark energy. [PDF]

open access: yesEur Phys J C Part Fields
Smith A   +4 more
europepmc   +1 more source

Challenges to the [Formula: see text]CDM cosmology. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Efstathiou G.
europepmc   +1 more source

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