Holographic dark energy linearly interacting with dark matter

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We investigate a spatially flat Friedmann-Robertson-Walker (FRW) cosmological model with cold dark matter coupled to a modified holographic Ricci dark energy through a general interaction term linear in the energy densities of dark matter and dark energy, the total energy density and its derivative...

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Autores principales: Chimento, L.P., Forte, M.I., Richarte, M.G.
Formato: CONF
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0094243X_v1471_n_p39_Chimento
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_0094243X_v1471_n_p39_Chimento2023-10-03T14:56:04Z Holographic dark energy linearly interacting with dark matter Chimento, L.P. Forte, M.I. Richarte, M.G. We investigate a spatially flat Friedmann-Robertson-Walker (FRW) cosmological model with cold dark matter coupled to a modified holographic Ricci dark energy through a general interaction term linear in the energy densities of dark matter and dark energy, the total energy density and its derivative 1. Using the statistical method of X2-function for the Hubble data, we obtain H0 = 73.6km/sMpc, ωs = -0.842 for the asymptotic equation of state and zacc = 0.89. The estimated values of Ωc0 which fulfill the current observational bounds corresponds to a dark energy density varying in the range 0.25R < ρx < 0.27R. © 2012 American Institute of Physics. Fil:Chimento, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Forte, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Richarte, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0094243X_v1471_n_p39_Chimento
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We investigate a spatially flat Friedmann-Robertson-Walker (FRW) cosmological model with cold dark matter coupled to a modified holographic Ricci dark energy through a general interaction term linear in the energy densities of dark matter and dark energy, the total energy density and its derivative 1. Using the statistical method of X2-function for the Hubble data, we obtain H0 = 73.6km/sMpc, ωs = -0.842 for the asymptotic equation of state and zacc = 0.89. The estimated values of Ωc0 which fulfill the current observational bounds corresponds to a dark energy density varying in the range 0.25R < ρx < 0.27R. © 2012 American Institute of Physics.
format CONF
author Chimento, L.P.
Forte, M.I.
Richarte, M.G.
spellingShingle Chimento, L.P.
Forte, M.I.
Richarte, M.G.
Holographic dark energy linearly interacting with dark matter
author_facet Chimento, L.P.
Forte, M.I.
Richarte, M.G.
author_sort Chimento, L.P.
title Holographic dark energy linearly interacting with dark matter
title_short Holographic dark energy linearly interacting with dark matter
title_full Holographic dark energy linearly interacting with dark matter
title_fullStr Holographic dark energy linearly interacting with dark matter
title_full_unstemmed Holographic dark energy linearly interacting with dark matter
title_sort holographic dark energy linearly interacting with dark matter
url http://hdl.handle.net/20.500.12110/paper_0094243X_v1471_n_p39_Chimento
work_keys_str_mv AT chimentolp holographicdarkenergylinearlyinteractingwithdarkmatter
AT fortemi holographicdarkenergylinearlyinteractingwithdarkmatter
AT richartemg holographicdarkenergylinearlyinteractingwithdarkmatter
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