中文
相关论文

相关论文: Observational Constraints of Modified Chaplygin Ga…

200 篇论文

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

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

FRW universe in Horava-Lifshitz (HL) gravity model filled with a combination of dark matter and dark energy in the form of variable modified Chaplygin gas (VMCG) is considered. The permitted values of the VMCG parameters are determined by…

广义相对论与量子宇宙学 · 物理学 2015-09-09 Chayan Ranjit , Prabir Rudra

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

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

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 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

We study Modified Chaplygin Gas (MCG) as a candidate for dark energy and predict the values of parameters of the gas for a physically viable cosmological model. The equation of state of MCG ($p=B \rho - \frac {A}{\rho^\alpha} $) involves…

宇宙学与河外天体物理 · 物理学 2013-02-27 P. Thakur , S. Ghose , B. C. Paul

In this Letter, a modified Chaplygin gas (MCG) model of unifying dark energy and dark matter with the exotic equation of state $p_{MCG}=B\rho_{MCG} -\frac A{\rho_{MCG}^\alpha}$ is constrained from recently observed data: the 182 Gold SNe…

宇宙学与河外天体物理 · 物理学 2010-05-07 Jianbo Lu , Lixin Xu , Jiechao Li , Baorong Chang , Yuanxing Gui , Hongya Liu

We study cosmological models with modified Chaplygin gas (in short, MCG) to determine observational constraints on its EoS parameters. The observational data of the background and the growth tests are employed. The background test data…

宇宙学与河外天体物理 · 物理学 2015-04-02 Bikash Chandra Paul , Prasenjit Thakur , Aroonkumar Beesham

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

Observational manifestations of accelerated expansion of the universe, in particular, recent data for Type Ia supernovae, baryon acoustic oscillations, for the Hubble parameter $H(z)$ and cosmic microwave background constraints are…

广义相对论与量子宇宙学 · 物理学 2016-08-02 G. S. Sharov

A modified Chaplygin gas model (MCG), $\rho_{MCG}/\rho_{MCG0}=[B_{s}+(1-B_{s})a^{-3(1+B)(1+\alpha)}]^{1/(1+\alpha)}$, as a unified dark matter model and dark energy model is constrained by using current available cosmic observational data…

宇宙学与河外天体物理 · 物理学 2012-04-26 Lixin Xu , Yuting Wang , Hyerim Noh

We investigate observational constraints on the generalized Chaplygin gas (GCG) model as the unification of dark matter and dark energy from the latest observational data: the Union SNe Ia data, the observational Hubble data, the SDSS…

宇宙学与河外天体物理 · 物理学 2014-11-20 Jianbo Lu , Yuanxing Gui , Lixin Xu

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

We use the Markov Chain Monte Carlo method to investigate a global constraints on the modified Chaplygin gas (MCG) model as the unification of dark matter and dark energy from the latest observational data: the Union2 dataset of type…

宇宙学与河外天体物理 · 物理学 2011-05-12 Jianbo Lu , Lixin Xu , Yabo Wu , Molin Liu

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
‹ 上一页 1 2 3 10 下一页 ›