Probing phenomenological emergent dark energy model in a Bianchi type-I spacetime with the recent observational data

2020 ◽  
Vol 30 ◽  
pp. 100717
Author(s):  
Shivani Sharma
Keyword(s):  
Dark Energy ◽  
Observational Data ◽  
Dark Energy Model ◽  
Bianchi Type ◽  
Energy Model ◽  
Type I ◽  
Bianchi Type I

Constraints on the Ricci dark energy cosmologies in Bianchi type I model

2021 ◽  
pp. 2150095
Author(s):  
H. Hossienkhani ◽  
N. Azimi ◽  
H. Yousefi
Keyword(s):  
Dark Energy ◽  
Dark Energy Model ◽  
Bianchi Type ◽  
Energy Model ◽  
Accelerated Expansion ◽  
Likelihood Method ◽  
Type I ◽  
Ricci Dark Energy ◽  
Bianchi Type I ◽  
The Impact

The impact of anisotropy on the Ricci dark energy cosmologies is investigated where it is assumed that the geometry of the universe is described by Bianchi type I (BI) metric. The main goal is to determine the astrophysical constraints on the model by using the current available data as type Ia supernovae (SNIa), the Baryon Acoustic Oscillation (BAO), and the Hubble parameter [Formula: see text] data. In this regard, a maximum likelihood method is applied to constrain the cosmological parameters. Combining the data, it is found out that the allowed range for the density parameter of the model stands in [Formula: see text]. With the help of the Supernova Legacy Survey (SNLS) sample, we estimate the possible dipole anisotropy of the Ricci dark energy model. Then, by using a standard [Formula: see text] minimization method, it is realized that the transition epoch from early decelerated to current accelerated expansion occurs faster in Ricci dark energy model than [Formula: see text]CDM model. The results indicate that the BI model for the Ricci dark energy is consistent with the observational data.

TELEPARALLEL DARK ENERGY MODEL WITH FERMIONIC FIELD FOR BIANCHI TYPE I SPACETIME

2019 ◽  
Vol 6 (328) ◽  
pp. 130-137
Author(s):  
S. R. Myrzakul ◽  
◽  
K. K. Yerzhanov ◽  
D. Zh. Kenzhalin ◽  
K. R. Myrzakulov ◽  
...  
Keyword(s):  
Dark Energy ◽  
Dark Energy Model ◽  
Bianchi Type ◽  
Energy Model ◽  
Type I ◽  
Fermionic Field ◽  
Bianchi Type I

TELEPARALLEL DARK ENERGY MODEL WITH FERMIONIC FIELD FOR BIANCHI TYPE I SPACETIME

2019 ◽  
Vol 5 (327) ◽  
pp. 11-18
Author(s):  
S.R. Myrzakul ◽  
◽  
K.K. Yerzhanov ◽  
D. Zh. Kenzhalin ◽  
K.R. Myrzakulov ◽  
...  
Keyword(s):  
Dark Energy ◽  
Dark Energy Model ◽  
Bianchi Type ◽  
Energy Model ◽  
Type I ◽  
Fermionic Field ◽  
Bianchi Type I

scholarly journals LOCALLY ROTATIONALLY SYMMETRIC BIANCHI TYPE-I COSMOLOGICAL MODEL IN f(T) GRAVITY: FROM EARLY TO DARK ENERGY DOMINATED UNIVERSE

2014 ◽  
Vol 23 (01) ◽  
pp. 1450004 ◽  
Author(s):  
M. E. RODRIGUES ◽  
I. G. SALAKO ◽  
M. J. S. HOUNDJO ◽  
J. TOSSA
Keyword(s):  
Dark Energy ◽  
Cosmological Model ◽  
Dark Energy Model ◽  
Bianchi Type ◽  
Rotational Symmetry ◽  
Type I ◽  
Bianchi Type I ◽  
Reconstruction Scheme ◽  
Rotationally Symmetric ◽  
The Universe

We study the locally rotational symmetry Bianchi type-I dark energy model in the framework of f(T) theory of gravity, where T denotes the torsion scalar. A viable cosmological model is undertaken and the isotropization of this latter is checked, yielding a result that reflects the real evolution of our universe. Moreover, still in the anisotropic optic, a more complicated f(T) model is obtained from the cosmological reconstruction scheme and the analysis shows that the universe is more anisotropic at the beginning if the terms of higher order in T are not considered. This means that the nonlinear model should be favored by observational data.

Constraining a bulk viscous Bianchi type I dark energy dominated universe with recent observational data

2021 ◽  
Vol 104 (6) ◽  
Author(s):  
Anil Kumar Yadav ◽  
Avinash K. Yadav ◽  
Manvinder Singh ◽  
Rajendra Prasad ◽  
Nafis Ahmad ◽  
...  
Keyword(s):  
Dark Energy ◽  
Observational Data ◽  
Bianchi Type ◽  
Type I ◽  
Bianchi Type I ◽  
Bulk Viscous
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