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Metaphysics of cosmological models
HTS Teologiese Studies/Theological Studies, 2023 This article aims to address the metaphysical dimension of cosmological models, be they mythological, philosophical, religious or modern scientific, using multidisciplinary and transdisciplinary methodology.
Vasile Chira
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The Astrophysical Journal, 2023 We propose a model of the Universe (dubbed η CDM) featuring a controlled stochastic evolution of the cosmological quantities that is meant to render the effects of small deviations from homogeneity/isotropy on scales of 30–50 h ^−1 Mpc at late cosmic ...
Andrea Lapi +6 more
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Spherically Symmetric Exact Vacuum Solutions in Einstein-Aether Theory
Universe, 2021 We study spherically symmetric spacetimes in Einstein-aether theory in three different coordinate systems, the isotropic, Painlevè-Gullstrand, and Schwarzschild coordinates, in which the aether is always comoving, and present both time-dependent and time-
Jacob Oost +2 more
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Cosmological Constant from Boundary Condition and Its Implications beyond the Standard Model
Universe, 2023 Standard cosmology has long been plagued by a number of persistent problems. The origin of the apparent acceleration of the cosmic expansion remains enigmatic.
Jan O. Stenflo
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Errant Man: The Importance of Cosmological Models in Culture [PDF]
Философия и космология, 2019 The author considers the meanings of the term “errant man” in the paper. The birth of man is his abandonment in being and wandering in it. It is important that wandering in being have direction, the source that drives man, forms the authenticity ...
Iryna Dobroskok
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Polynomial Affine Model of Gravity in Three-Dimensions
Universe, 2022 In this work, we explore a three-dimensional formulation of the polynomial affine model of gravity, which is a model that extends general relativity by relaxing the equivalence principle through the exclusion of the metric from the set of fundamental ...
Oscar Castillo-Felisola +6 more
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FLRW Cosmological Models with Dynamic Cosmological Term in Modified Gravity
Universe, 2021 Although the standard lambda cold dark matter cosmological model is quite successful in describing the universe, there are still several issues that are still not resolved.
Rishi Kumar Tiwari +2 more
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Crossing of Phantom Divide Line in Model of Interacting Tsallis Holographic Dark Energy
Universe, 2022 We consider a Tsallis holographic dark energy model with interaction between dark energy and matter. The density of dark energy is taken as ρd∼3C2/L4−2γ, where C, γ are constants. The event horizon is chosen as the characteristic scale L.
Artyom V. Astashenok +1 more
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Cosmological Tensions and the Transitional Planck Mass Model
The Astrophysical Journal, 2023 In this follow-up analysis, we update previous constraints on the transitional Planck mass (TPM) modified gravity model using the latest version of EFTCAMB and provide new constraints using South Pole Telescope (SPT) and Planck anisotropy data along with
Joshua A. Kable +3 more
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Homogeneous Cosmological Models in Weyl’s Geometrical Scalar–Tensor Theory
Universe, 2023 In this paper, we consider homogeneous cosmological solutions in the context of the Weyl geometrical scalar–tensor theory. Firstly, we exhibit an anisotropic Kasner type solution taking advantage of some similarities between this theory and the Brans ...
Adriano Barros, Carlos Romero
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