Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Chimento, Luis P."'
We investigate an interacting two-fluid model in a spatially flat Friedmann-Lema\^itre-Robertson-Walker (FLRW) Universe, when the energy transfer between these two dark components is produced by a factorisable nonlinear sign-changeable interaction de
Externí odkaz:
http://arxiv.org/abs/1901.04300
We construct a piecewise model that gives a physical viable realization of finite-time future singularity for a spatially flat Friedmann-Robertson-Walker universe within the interacting dark matter--dark energy framework, with the latter one in the f
Externí odkaz:
http://arxiv.org/abs/1702.07743
Autor:
Chimento, Luis P., Richarte, Martín G.
Publikováno v:
Phys. Rev. D 95, 069902 (2017)
We describe a big brake singularity in terms of a modified Chaplygin gas equation of state $p=(\ga_{m}-1)\rho+\al\ga_{m}\rho^{-n}$, accommodate this late-time event as an exotic quintessence model obtained from an energy-momentum tensor, and focus on
Externí odkaz:
http://arxiv.org/abs/1512.02664
Autor:
Chimento, Luis P., Richarte, Martín G.
Publikováno v:
Phys. Rev. D 92, 043511 (2015)
We examine an interacting dark matter--variable vacuum energy model for a spatially flat Friedmann-Roberston-Walker spacetime, focusing on the appearance of cosmological singularities such as \emph{big rip, big brake, big freeze}, and \emph{ big sepa
Externí odkaz:
http://arxiv.org/abs/1506.05823
Autor:
Chimento, Luis P., Richarte, Martín G.
We investigate the interacting dark sector composed of dark matter, dark energy, and dark radiation for a spatially flat Friedmann-Robertson-Walker (FRW) background by introducing a three-dimensional internal space spanned by the interaction vector $
Externí odkaz:
http://arxiv.org/abs/1402.6371
Publikováno v:
Phys. Rev. D 88, 087301 (2013)
We examine a cosmological scenario where dark matter is coupled to a variable vacuum energy while baryons and photons are two decoupled components for a spatially flat Friedmann-Robertson-Walker spacetime. We apply the $\chi^{2}$ method to the update
Externí odkaz:
http://arxiv.org/abs/1310.5335
Autor:
Chimento, Luis P., Richarte, Martín G.
Publikováno v:
The European Physical Journal C July 2013, 73:2497
We analyze a universe filled with interacting dark matter, a scalar field accommodated as dark radiation along with dark energy plus a decoupled radiation term within the framework of spatially flat Friedmann-Robertson-Walker (FRW) spacetime. We work
Externí odkaz:
http://arxiv.org/abs/1308.0860
Autor:
Chimento, Luis P., Richarte, Martín G.
Publikováno v:
The European Physical Journal C April 2013, 73:2352
We investigate a universe filled with interacting dark matter, holographic dark energy, and dark radiation for the spatially flat Friedmann-Robertson-Walker (FRW) spacetime. We use a linear interaction to reconstruct all the component energy densitie
Externí odkaz:
http://arxiv.org/abs/1303.3356
Publikováno v:
The European Physical Journal C, Volume 73, article id. #2285 (2013)
We examine a Friedmann-Robertson-Walker universe filled with interacting dark matter, modified holographic Ricci dark energy (MHRDE), and a decoupled baryonic component.The estimations of the cosmic parameters with Hubble data lead to an age of the u
Externí odkaz:
http://arxiv.org/abs/1301.2737
Autor:
Chimento, Luis P., Richarte, Martín G.
Publikováno v:
Phys. Rev. D 86, 103501 (2012)
We investigate a cosmological scenario with three interacting components that includes dark matter, dark energy, and radiation in the spatially flat Friedmann-Robertson-Walker universe. We introduce a 3-dimensional internal space, the interaction vec
Externí odkaz:
http://arxiv.org/abs/1210.5505