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pro vyhledávání: '"Anton, Theodore"'
Autor:
Anton, Theodore
Cosmology is built on a relativistic understanding of gravity, where the geometry of the Universe is dynamically determined by matter and energy. In the cosmological concordance model, gravity is described by General Relativity, and it is assumed tha
Externí odkaz:
http://arxiv.org/abs/2407.17984
The Parameterised Post-Newtonian (PPN) approach is the default framework for performing precision tests of gravity in nearby astrophysical systems. In recent works we have extended this approach for cosmological applications, and in this paper we use
Externí odkaz:
http://arxiv.org/abs/2405.20388
Autor:
Anton, Theodore, Clifton, Timothy
Publikováno v:
JCAP 05 (2024) 120
We consider the form of Hubble diagrams that would be constructed by observers in universes that are homogeneous but anisotropic, when averaged over suitably large length-scales. This is achieved by ray-tracing in different directions on the sky in f
Externí odkaz:
http://arxiv.org/abs/2402.16585
Autor:
Anton, Theodore, Clifton, Timothy
Publikováno v:
Class. Quantum Grav. 40 145004 (2023)
Astronomical observations suggest that the Universe may be anisotropic on the largest scales. In order to model this situation, we develop a new approach to cosmology that allows for large-scale anisotropy to emerge from the growth of non-linear stru
Externí odkaz:
http://arxiv.org/abs/2302.05715
Publikováno v:
JCAP 04 (2023) 016
Parameterised Post-Newtonian Cosmology (PPNC) is a theory-agnostic framework for testing gravity in cosmology, which connects gravitational physics on small and large scales in the Universe. It is a direct extension of the Parameterised Post-Newtonia
Externí odkaz:
http://arxiv.org/abs/2207.14713
Autor:
Anton, Theodore, Clifton, Timothy
Publikováno v:
Class. Quantum Grav. 39 (2022) 095005
We derive a theory-independent version of the momentum constraint equation for use in cosmology, as a part of the Parameterised Post-Newtonian Cosmology (PPNC) framework. Our equations are constructed by adapting the corresponding quantities from for
Externí odkaz:
http://arxiv.org/abs/2111.10860
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