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相关论文: Observational data fitting to constrain Variable M…

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Assuming the flat FRW universe in Einstein's gravity filled with New Variable Modified Chaplygin gas (NVMCG) dark energy and dark matter having negligible pressure. In this research work we analyze the viability on the basis of recent…

综合物理 · 物理学 2012-11-13 Jhumpa Bhadra , Ujjal Debnath

We have assumed the FRW model of the universe in Galileon gravity, which is filled with dark matter and Modified Chaplygin gas (MCG) type dark energy. We present the Hubble parameter in terms of some unknown parameters and observational…

综合物理 · 物理学 2015-06-19 Chayan Ranjit , Prabir Rudra , Ujjal Debnath

We have considered the FRW universe in loop quantum cosmology (LQC) model filled with the dark matter (perfect fluid with negligible pressure) and the modified Chaplygin gas (MCG) type dark energy. We present the Hubble parameter in terms…

综合物理 · 物理学 2015-06-05 Shuvendu Chakraborty , Ujjal Debnath , Chayan Ranjit

We have assumed FRW model of the universe in Einstein-Aether gravity filled with dark matter and Modified Chaplygin gas (MCG) type dark energy. We present the Hubble parameter in terms of some unknown parameters and observational parameters…

广义相对论与量子宇宙学 · 物理学 2013-10-09 Ujjal Debnath

FRW universe in RS II braneworld model filled with a combination of dark matter and dark energy in the form of modified Chaplygin gas (MCG) is considered. It is known that the equation of state (EoS) for MCG is a three-variable equation…

综合物理 · 物理学 2015-06-15 Chayan Ranjit , Prabir Rudra , Sujata Kundu

In this work, we have considered the flat FRW model of the universe in $(n+2)$-dimensions filled with the dark matter (perfect fluid with negligible pressure) and the modified Chaplygin gas (MCG) type dark energy. We present the Hubble…

综合物理 · 物理学 2015-09-09 Chayan Ranjit , Shuvendu Chakraborty , Ujjal Debnath

We have assumed the FRW universe in loop quantum cosmology (LQC) model filled with the dark matter and the Generalized Cosmic Chaplygin gas (GCCG) type dark energy where dark matter follows the linear equation of state. We present the…

综合物理 · 物理学 2014-09-25 Chayan Ranjit , Ujjal Debnath

This study examines accelerated cosmic expansion using the Viscous Modified Chaplygin Gas (VMMG) and Generalized Cosmic Chaplygin Gas (GCCM) within Horava-Lifshitz gravity. Our aim is to constrain essential cosmological parameters, such as…

宇宙学与河外天体物理 · 物理学 2024-08-12 Sayani Maity , Himanshu Chaudhary , Ujjal Debnath , S. K. Maurya , G. Mustafa

In the current study, we have reconstructed variable modified Chaplygin gas in the Barrow holographic dark energy framework motivated by many recent studies. We have validated the generalized second law of thermodynamics for the…

广义相对论与量子宇宙学 · 物理学 2025-12-02 Sanjeeda Sultana , Chayan Ranjit , Surajit Chattopadhyay

We present Cosmological models with modified Chaplygin gas (MCG) in the framework of Horava-Lifshitz (HL) theory of gravity both with and without detailed balance. The equation of state (EOS) for a MCG contains three unknown parameters…

宇宙学与河外天体物理 · 物理学 2015-06-05 B. C. Paul , P. Thakur

We have considered flat Friedmann-Robertson-Walker (FRW) model of the universe and reviewed the modified Chaplygin gas as the fluid source. Associated with the scalar field model, we have determined the Hubble parameter as a generating…

广义相对论与量子宇宙学 · 物理学 2021-12-02 Ujjal Debnath

In this work, we assume the FRLW Universe which is filled with dark matter along with dark energy in the framework of Horava-Lifshitz (HL) gravity. The dark energy is considered as the Linear (Model I) and CPL (Model II) parametrizations of…

广义相对论与量子宇宙学 · 物理学 2024-02-07 Himanshu Chaudhary , Niyaz Uddin Molla , Madhur Khurana , Ujjal Debnath , G. Mustafa

In this work, we explore the cosmological dynamics of a modified gravity framework based on the function $f(Q,B)=\delta Q^{2}+\beta B$, where $Q$ denotes the nonmetricity scalar and $B$ is the boundary term that relates $Q$ to the Ricci…

广义相对论与量子宇宙学 · 物理学 2025-07-22 Amit Samaddar , S. Surendra Singh

We investigate cosmological constraints on the Variable Chaplygin gas model parameters with latest observational data of the Fast Radio Bursts and compare the results with previous constraints obtained using SNe Ia (Pantheon+SHOES), Gamma…

宇宙学与河外天体物理 · 物理学 2024-04-25 Geetanjali Sethi , Udish Sharma , Nadia Makhijani

In this work, we have considered the flat FRW model of the universe in $(n+2)$-dimensions filled with the dark matter and the magnetic field. We present the Hubble parameter in terms of the observable parameters $\Omega_{m0}$ and $H_{0}$…

综合物理 · 物理学 2013-04-05 Chayan Ranjit , Shuvendu Chakraborty , Ujjal Debnath

We investigate cosmological scenarios of generalized Chaplygin gas in a universe governed by Horava-Lifshitz gravity. We consider both the detailed and non-detailed balance versions of the gravitational background, and we include the…

宇宙学与河外天体物理 · 物理学 2012-01-24 Amna Ali , Sourish Dutta , Emmanuel N. Saridakis , Anjan A. Sen

In this paper we study the evolution of the FRW universe filled with variable modified Chaplygin gas (VMCG). We begin with a thermodynamical treatment of VMCG described by the equation of state $P = A\rho-B\rho^{-\alpha}$, and obtain its…

广义相对论与量子宇宙学 · 物理学 2025-08-11 Samarjit Chakraborty , Sarbari Guha , D. Panigrahi

We investigate the linear growth function for the large scale structures of the universe considering modified Chaplygin gas as dark energy. Taking into account observational growth data for a given range of redshift from the Wiggle-Z…

宇宙学与河外天体物理 · 物理学 2015-06-16 B. C. Paul , P. Thakur

This paper investigates the accelerated cosmic expansion in the late Universe by examining two dark energy models, viscous modified Chaplygin gas (VsMCG) and variable modified Chaplygin gas (VMCG), within loop quantum cosmology alongside…

广义相对论与量子宇宙学 · 物理学 2024-08-12 Rownak Kundu , Ujjal Debnath , Himanshu Chaudhary , G. Mustafa

We examine observational constraints on the generalized Chaplygin gas (GCG) model for dark energy from the 9 Hubble parameter data points, the 115 SNLS Sne Ia data and the size of baryonic acoustic oscillation peak at redshift, $z=0.35$. At…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Puxun Wu , Hongwei Yu
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