Results 31 to 40 of about 400,960 (288)
Relativistic cosmology number densities and the luminosity function [PDF]
, 2012 Aims. This paper studies the connection between the relativistic number density of galaxies down the past light cone in a FriedmannLemaitre-Robertson-Walker spacetime with non-vanishing cosmological constant and the galaxy luminosity function (LF) data ...
A. Iribarrem +11 more
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Analogy between equilibrium beach profiles and closed universes
Physical Review Research, 2019 We reformulate the variational problem describing equilibrium beach profiles in the thermodynamic approach of Jenkins and Inman [J. Geophys. Res.: Oceans 111, C02003 (2006)10.1029/2005JC002899].
Valerio Faraoni
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Cosmic Analogues of Classic Variational Problems
Universe, 2020 Several classic one-dimensional problems of variational calculus originating in non-relativistic particle mechanics have solutions that are analogues of spatially homogeneous and isotropic universes.
Valerio Faraoni
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On the time delay between ultra-relativistic particles
Physics Letters B, 2016 The time delay between the receptions of ultra-relativistic particles emitted simultaneously is a useful observable for both fundamental physics and cosmology.
Pierre Fleury
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Analogues of glacial valley profiles in particle mechanics and in cosmology
FACETS, 2017 An ordinary differential equation describing the transverse profiles of U-shaped glacial valleys has two formal analogies, which we explore in detail, bridging these different areas of research.
Valerio Faraoni, Adriana M. Cardini
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On newtonian and relativistic cosmology [PDF]
Bulletin of the Australian Mathematical Society, 1974 A. B. Evans
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Cosmological dynamics of relativistic MOND
Journal of Cosmology and Astroparticle Physics, 2022 Abstract In this paper, we investigate the recently proposed relativistic theory for MOND using phase space analysis. Unlike its precedent theory, namely TeVeS, this theory is claimed to agree with the observed Cosmic Microwave Background and matter power spectra. We convert the background cosmological equations of the theory to a set of
Kashfi, Tahere, Roshan, Mahmood
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Relativistic numerical cosmology with silent universes [PDF]
, 2017 Relativistic numerical cosmology is most often based either on the exact solutions of the Einstein equations, or perturbation theory, or weak-field limit, or the BSSN formalism.
K. Bolejko
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Ricci cosmology in light of astronomical data
European Physical Journal C: Particles and Fields, 2021 Recently, a new cosmological framework, dubbed Ricci cosmology, has been proposed. Such a framework has emerged from the study of relativistic dynamics of fluids out of equilibrium in a curved background and is characterised by the presence of deviations
Roberto Caroli +2 more
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Constraining neutrino mass and extra relativistic degrees of freedom in dynamical dark energy models using Planck 2015 data in combination with low-redshift cosmological probes: basic extensions to ΛCDM cosmology [PDF]
, 2016 We investigate how the properties of dark energy affect the cosmological measurements of neutrino mass and extra relativistic degrees of freedom. We limit ourselves to the most basic extensions of $\Lambda$ cold dark matter (CDM) model, i.e.
Ming-Ming Zhao +3 more
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