Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component
We investigate a spatially flat Friedmann-Robertson-Walker universe that has an interacting dark matter, a modified holographic Ricci dark energy (MHRDE), plus a third, decoupled component that behaves as a radiation term. We consider a nonlinear interaction in the dark component densities and their...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_15507998_v85_n12_p_Chimento |
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todo:paper_15507998_v85_n12_p_Chimento2023-10-03T16:24:33Z Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component Chimento, L.P. Richarte, M.G. We investigate a spatially flat Friedmann-Robertson-Walker universe that has an interacting dark matter, a modified holographic Ricci dark energy (MHRDE), plus a third, decoupled component that behaves as a radiation term. We consider a nonlinear interaction in the dark component densities and their derivatives up to second order. We apply the χ2 method to the observational Hubble data for constraining the cosmological parameters, and analyze the amount of dark energy in the radiation era for both MHRDE and holographic Ricci dark energy models. The former is consistent with the bound Ω x(z1100)<0.1 reported for the behavior of dark energy at early times, while the latter does not fulfill it. © 2012 American Physical Society. Fil:Chimento, L.P. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15507998_v85_n12_p_Chimento |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We investigate a spatially flat Friedmann-Robertson-Walker universe that has an interacting dark matter, a modified holographic Ricci dark energy (MHRDE), plus a third, decoupled component that behaves as a radiation term. We consider a nonlinear interaction in the dark component densities and their derivatives up to second order. We apply the χ2 method to the observational Hubble data for constraining the cosmological parameters, and analyze the amount of dark energy in the radiation era for both MHRDE and holographic Ricci dark energy models. The former is consistent with the bound Ω x(z1100)<0.1 reported for the behavior of dark energy at early times, while the latter does not fulfill it. © 2012 American Physical Society. |
| format |
JOUR |
| author |
Chimento, L.P. Richarte, M.G. |
| spellingShingle |
Chimento, L.P. Richarte, M.G. Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component |
| author_facet |
Chimento, L.P. Richarte, M.G. |
| author_sort |
Chimento, L.P. |
| title |
Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component |
| title_short |
Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component |
| title_full |
Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component |
| title_fullStr |
Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component |
| title_full_unstemmed |
Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component |
| title_sort |
interacting dark matter and modified holographic ricci dark energy plus a noninteracting cosmic component |
| url |
http://hdl.handle.net/20.500.12110/paper_15507998_v85_n12_p_Chimento |
| work_keys_str_mv |
AT chimentolp interactingdarkmatterandmodifiedholographicriccidarkenergyplusanoninteractingcosmiccomponent AT richartemg interactingdarkmatterandmodifiedholographicriccidarkenergyplusanoninteractingcosmiccomponent |
| _version_ |
1807321054607048704 |