Results 11 to 20 of about 546,296 (162)

The Disunity of Robustness: Hubble Tension [PDF]

open access: yesThe Reasoner
The paper examines how conceptual disunity in robustness analysis (RA) can generate contradictory interpretations of the Hubble tension, the discrepancy between independent measurements of the universe’s expansion rate.
Marco Forgione
doaj   +3 more sources

Addressing the Hubble tension with cosmic chronometers [PDF]

open access: yes, 2023
Twenty years after the discovery that the expansion of the Universe is accelerating, a new finding is now challenging our understanding of the cosmos.
Moresco, Michele
core   +1 more source

Seeking Solutions for the Hubble Tension [PDF]

open access: yes, 2022
When I started my research in cosmology, the $\Lambda$CDM model was the standard paradigm of cosmology. Now as I am writing this thesis, despite it still being the only standard one, the $\Lambda$CDM model is challenged by the ever more precise modern ...
Lin, Meng-Xiang
core   +1 more source

Hubble Tension and Gravitational Self-Interaction [PDF]

open access: yes, 2023
One of the most important problems vexing the $Λ$CDM cosmological model is the Hubble tension. It arises from the fact that measurements of the present value of the Hubble parameter performed with low-redshift quantities, e.g., the Type IA supernova ...
Sargent, Corey   +2 more
core   +3 more sources

The Ellipsoidal Universe and the Hubble tension [PDF]

open access: yes, 2023
The Hubble tension resides in a statistically significant discrepancy between early time and late time determinations of the Hubble constant. We discuss the Hubble tension within the Ellipsoidal Universe cosmological model. We suggest that allowing small
Cea, Paolo
core   +1 more source

Supernova calibration by gravitational waves

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Hubble tension is one of the most important problems in cosmology. Although the local measurements on the Hubble constant with Type Ia supernovae (SNe Ia) are independent of cosmological models, they suffer the problem of zero-point calibration of the ...
Xuchen Lu, Yungui Gong
doaj   +1 more source

GEO-Lens & Hubble Tension

open access: yes
Applications of GEO-Lens operators to cosmological expansion, Hubble tension studies, validation materials, and associated numerical ...
leonel torreblanca
core   +6 more sources

A bias using the ages of the oldest astrophysical objects to address the Hubble tension

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Recently different cosmological measurements have shown a tension in the value of the Hubble constant, $$H_0.$$ H 0 . Assuming the $$\Lambda $$ Λ CDM model, the Planck satellite mission has inferred the Hubble constant from the cosmic microwave ...
André A. Costa, Zelin Ren, Zhixiang Yin
doaj   +1 more source

Investigating The Hubble Tension Through Hubble Parameter Data [PDF]

open access: yes, 2023
The Hubble constant ($H_0$), which represents the expansion rate of the Universe, is one of the most important cosmological parameters. The recent measurements of $H_0$ using the distance ladder methods such as Type Ia Supernovae (SNe Ia) are ...
Thakur, Rahul Kumar   +3 more
core   +1 more source

Dark Matter Cosmology with Varying Viscosity: A Possible Resolution to the S 8 Tension

open access: yesThe Astrophysical Journal, 2023
We study varying forms of viscous dark matter (DM) and try to address the intriguing tensions of the standard model of cosmology with recent cosmological data, including the Hubble and S _8 tensions.
Amjad Ashoorioon, Zahra Davari
doaj   +1 more source

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