Parametrizations of dark energy models in the background of general non-canonical scalar field in D-dimensional fractal universe
Creators
- 1. Department of Mathematics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah (India)
- 2. Division of Human Support System, Faculty of Symbiotic Systems Science, Fukushima University (Japan)
Description
We have explored non-canonical scalar field model in the background of non-flat D-dimensional fractal Universe on the condition that the matter and scalar field are separately conserved. The potential V, scalar field ϕ, function f, densities, Hubble parameter and deceleration parameter can be expressed in terms of the redshift z and these depend on the equation of state parameter w. We have also investigated the cosmological analysis of four kinds of well known parametrization models. In graphically, we have analyzed the natures of potential, scalar field, function f, densities, the Hubble parameter and deceleration parameter. As a result, the best fitted values of the unknown parameters (w,w) of the parametrization models due to the joint data analysis (SNIa+BAO+CMB+Hubble) have been found. Furthermore, the minimum values of χ function have been obtained. Also we have plotted the graphs for different confidence levels 66%, 90% and 99% contours for (w, w) by fixing the other parameters.
Availability note (English)
Available from: http://dx.doi.org/10.1140/epjc/s10052-019-7172-yAdditional details
Identifiers
Publishing Information
- Journal Title
- European Physical Journal. C, Particles and Fields (Online)
- Journal Volume
- 79
- Journal Issue
- 8
- Journal Page Range
- p. 1-14
- ISSN
- 1434-6052
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 51020481
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BARYONS; COSMOLOGICAL MODELS; DATA ANALYSIS; FRACTALS; GENERAL RELATIVITY THEORY; GRAVITATION; HUBBLE EFFECT; LAGRANGIAN FIELD THEORY; LEAST SQUARE FIT; MANY-DIMENSIONAL CALCULATIONS; NONLUMINOUS MATTER; POTENTIALS; RELICT RADIATION; SCALAR FIELDS; SUPERNOVAE; UNIVERSE
- Descriptors DEC
- BINARY STARS; DATA PROCESSING; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ERUPTIVE VARIABLE STARS; FERMIONS; FIELD THEORIES; HADRONS; MATHEMATICAL MODELS; MATHEMATICAL SOLUTIONS; MATTER; MAXIMUM-LIKELIHOOD FIT; MICROWAVE RADIATION; NUMERICAL SOLUTION; PROCESSING; QUANTUM FIELD THEORY; RADIATIONS; RELATIVITY THEORY; STARS; VARIABLE STARS
Optional Information
- Notes
- AID: 722