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Dark energy parametrizations and their effect on dark halos
(Iop Publishing Ltd, 2014)
Dark energy parametrizations and their effect on dark halos
(Iop Publishing Ltd, 2006-07-01)
There are a plethora of dark energy parametrizations that can fit current supernovae Ia data. However, these data are only sensitive to redshifts up to order one. In fact, many of these parametrizations break down at higher ...
Dark energy parametrizations and their effect on dark halos
(Iop Publishing Ltd, 2006-07-01)
There are a plethora of dark energy parametrizations that can fit current supernovae Ia data. However, these data are only sensitive to redshifts up to order one. In fact, many of these parametrizations break down at higher ...
Reheating in holographic cosmology and connecting to Λ-MSSM constructions for particle physics
(2021-09-01)
In this paper we model the transition from the non-geometric holographic cosmology regime, to the usual radiation dominated (RD) cosmology, known as reheating in the case of (perturbative) inflation. We find that we can ...
The velocity field in MOND cosmology
(2016)
The recently developed code for N-body/hydrodynamics simulations in Modified Newtonian Dynamics (MOND), known as raymond, is used to investigate the consequences of MOND on structure formation in a cosmological context, ...
Λ(t) cosmology induced by a slowly varying Elko field
(2017-01-27)
In this work the exact Friedmann-Robertson-Walker equations for an Elko spinor field coupled to gravity in an Einstein-Cartan framework are presented. The torsion functions coupling the Elko field spin-connection to gravity ...
Testing extended Jordan-Brans-Dicke theories with future cosmological observations
(Institute of Physics Publishing, 2019)
© 2019 IOP Publishing Ltd and Sissa Medialab.The extended Jordan-Brans-Dicke (eJBD) theory of gravity is constrained by a host of astrophysical and cosmological observations spanning a wide range of scales. The current ...
SOBRE LAS DIMENSIONES EXTRAS ESPACIALES
(Lat. Am. J. Phys. Educ, 2013-01-16)
The cosmic coincidence in Brans–Dicke cosmologies
(2005)
Among the suggested solutions to the cosmological constant problem, we nd the idea
of a dynamic vacuum, with an energy density decaying with the universe expansion. We
investigate the possibility of a variation in the ...