Results 1 to 10 of about 546,296 (162)
Can Stiff Matter Solve the Hubble Tension?
AxiomsA new form of the mathematical expression for the co-moving volume element of a flat universe with cosmological constant, cold matter, and stiff matter is presented.
Øyvind G. Grøn
exaly +4 more sources
Gravitational Particle Production and the Hubble Tension
UniverseThe effect of gravitational particle production of scalar particles on the total effective cosmic energy density (in the era after photon decoupling till the present) is considered. The effect is significant for heavy particles.
Recai Erdem
exaly +4 more sources
Investigating the Hubble tension: Effect of cepheid calibration [PDF]
Physics Letters B, 2023 Recent observations of Type Ia supernovae (SNe) by SH0ES collaboration (R11 and R16) diverge from the value reported by recent CMBR observations utilising the Planck satellite and application of the ΛCDM cosmological model by at least 3σ. It is among the
Rahul Kumar Thakur +4 more
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Black hole information turbulence and the Hubble tension [PDF]
Scientific ReportsFractals are complex geometric patterns whose structure look similar at different scales of magnification. Examples of fractals in astrophysics are diverse: the cosmic microwave background (CMB) or the distribution of matter in the universe show patterns
Juan Luis Cabrera Fernández
doaj +2 more sources
The Unsettled Number: Hubble’s Tension
Universe, 2023 One of main sources of uncertainty in modern cosmology is the present rate of the universe’s expansion, H0, called the Hubble constant. Once again, different observational techniques bring about different results, causing new “Hubble tension”.
George F. Smoot, Jorge L. Cervantes-Cota
exaly +3 more sources
Hubble Tension: The Evidence of New Physics
Universe, 2023 The ΛCDM model provides a good fit to most astronomical observations but harbors large areas of phenomenology and ignorance. With the improvements in the precision and number of observations, discrepancies between key cosmological parameters of this ...
Jianping Hu, Fayin Wang
exaly +3 more sources
H0 tension in torsion-based modified gravity
Nuclear Physics B, 2023 The rising concern in the Hubble constant tension (H0 tension) of the cosmological models motivates the scientific community to search for alternative cosmological scenarios that could resolve the H0 tension.
Sanjay Mandal +3 more
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Why reducing the cosmic sound horizon alone can not fully resolve the Hubble tension
Communications Physics, 2021 It is generally accepted that the Universe is dominated by dark energy but the different methods to measure the Hubble constant disagree, giving origin to what is known as the "Hubble tension”. The authors demonstrate that the sole reduction of the sound
Karsten Jedamzik +2 more
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Pantheon+ tomography and Hubble tension
European Physical Journal C: Particles and Fields, 2023 The recently released Type Ia supernovae (SNe Ia) sample, Pantheon+, is an updated version of Pantheon and has very important cosmological implications.
Deng Wang
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Late-time dark energy and Hubble tension
Open Astronomy, 2023 We extend Einstein’s theory of general relativity by introducing stochastic elements in addition to the usual fields and apply it to explore late-time redshift. The stochastic perturbation of spacetime enforces an effective minimum length (ML) to give us
Pilipović Dragana
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