scholarly journals Observational constraints on a unified dark matter and dark energy model based on generalized Chaplygin gas

2010 ◽  
Vol 81 (6) ◽  
Author(s):  
Chan-Gyung Park ◽  
Jai-chan Hwang ◽  
Jaehong Park ◽  
Hyerim Noh
Keyword(s):  
Dark Matter ◽  
Dark Energy ◽  
Dark Energy Model ◽  
Chaplygin Gas ◽  
Energy Model ◽  
Observational Constraints ◽  
Generalized Chaplygin Gas ◽  
Model Based

scholarly journals VARIABLE GENERALIZED CHAPLYGIN GAS AS A SCALAR FIELD DARK ENERGY MODEL

2019 ◽  
Vol 2 (1) ◽  
pp. 98-102
Author(s):  
MUSTAFA SALTI ◽  
MURAT KORUNUR ◽  
KENAN SOGUT ◽  
OKTAY AYDOĞDU
Keyword(s):  
Dark Energy ◽  
Scalar Field ◽  
Dark Energy Model ◽  
Chaplygin Gas ◽  
Energy Model ◽  
Generalized Chaplygin Gas

scholarly journals AGEGRAPHIC CHAPLYGIN GAS MODEL OF DARK ENERGY

2009 ◽  
Vol 18 (13) ◽  
pp. 2023-2034 ◽  
Author(s):  
A. SHEYKHI
Keyword(s):  
Dark Energy ◽  
Scalar Field ◽  
Energy Density ◽  
Dark Energy Model ◽  
Chaplygin Gas ◽  
Energy Model ◽  
Generalized Chaplygin Gas ◽  
Agegraphic Dark Energy

We establish a connection between the agegraphic models of dark energy and Chaplygin gas energy density in a nonflat universe. We reconstruct the potential of the agegraphic scalar field as well as the dynamics of the scalar field according to the evolution of the agegraphic dark energy. We also extend our study to the interacting agegraphic generalized Chaplygin gas dark energy model.

scholarly journals A dark energy model alternative to generalized Chaplygin gas

2017 ◽  
Vol 27 (01) ◽  
pp. 1750178 ◽  
Author(s):  
Hoavo Hova ◽  
Huanxiong Yang
Keyword(s):  
Dark Matter ◽  
Dark Energy ◽  
Dark Energy Model ◽  
Fluid Model ◽  
Chaplygin Gas ◽  
Fluid Models ◽  
Scale Invariant ◽  
Generalized Chaplygin Gas ◽  
Text Model

By proposing a new cosmic fluid model of [Formula: see text] as an alternative to the generalized Chaplygin gas, we reexamine the role of Chaplygin gaslike fluid models in understanding dark energy and dark matter. Instead of as a unified dark matter, the fluid is suggested to be a mixture of unclustered dark energy and pressureless dark matter. Within such a scenario, the sub-horizon fluctuations of matter are stable and scale invariant, similar to those in standard [Formula: see text] model.

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