English
Related papers

Related papers: Statefinder Diagnosis for Ricci Dark Energy

200 papers

We perform a Bayesian model selection analysis for interacting scenarios of dark matter and modified holographic Ricci dark energy (MHRDE) with linear interacting terms. We use a combination of some of the latest cosmological data such as…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-03 Antonella Cid , Carlos Rodriguez-Benites , Mauricio Cataldo , Gonzalo Casanova

In this paper we consider a universe filled with barotropic dark matter and Ricci dark energy in Lyra geometry with varying Lambda. We assume two different kinds of interactions between dark matter and dark energy. Then, by using numerical…

General Relativity and Quantum Cosmology · Physics 2015-05-12 M. Khurshudyan , J. Sadeghi , A. Pasqua , S. Chattopadhyay , R. Myrzakulov , H. Farahani

In this short letter, we presented the explicit forms of the statefinder parameters for the Friedmann-Robertson-Walker (FRW) Universe in the loop quantum cosmology (LQC) for Holographic dark energy and New-Agegraphic dark energy.…

General Physics · Physics 2013-08-01 Mubasher Jamil , D. Momeni , Ratbay Myrzakulov

I review the observational prospects to constrain the equation of state parameter of dark energy and I discuss the potential of future imaging and redshift surveys. Bayesian model selection is used to address the question of the level of…

Astrophysics · Physics 2007-05-23 Roberto Trotta

In this letter, we have considered generalized Ricci dark energy in the Horava-Lifshitz gravity. We have reconstructed the Hubble's parameter in terms of fractional densities. We have viewed the equation of state parameter in this…

General Relativity and Quantum Cosmology · Physics 2016-11-25 Surajit Chattopadhyay

In this research, we are interested in constraining the nonlinear interacting and noninteracting Tsallis holographic dark energy (THDE) with Ricci horizon cutoff by employing three observational datasets. To this aim, the THDE with Ricci…

General Relativity and Quantum Cosmology · Physics 2022-12-09 Z. Feizi Mangoudehi

In this paper, we intend to evaluate and analyze the statefinder parameters in $f(T)$ cosmology. Friedmann equation in $f(T)$ model is taken, and the statefinder parameters ${r,s}$ are calculated. We consider a model of $f(T)$ which…

General Physics · Physics 2012-11-13 Mubasher Jamil , Davood Momeni , Ratbay Myrzakulov , Prabir Rudra

The Dark Energy Spectroscopic Instrument (DESI) second data release shows a moderate preference for dark energy with a time-varying equation of state parameter, suggesting that the standard $\Lambda$CDM model may need to be revised. In…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-08 Zachary J. Hoelscher , Thomas W. Kephart , Robert J. Scherrer , Kelly Holley-Bockelmann

Equation of state parameter plays a significant role for guessing the real nature of dark energy. In the present paper polytropic equation of state $p=\omega\rho^n$ is chosen for some of the kinematical $\Lambda$-models viz., $\Lambda \sim…

Astrophysics · Physics 2009-02-11 Utpal Mukhopadhyay , Saibal Ray

In this paper, we study some relevant cosmological features of a Dark Energy (DE) model with Granda-Oliveiros cut-off, which is just a specific case of Nojiri-Odintsov holographic DE unifying phantom inflation with late-time acceleration,…

General Relativity and Quantum Cosmology · Physics 2019-01-23 Antonio Pasqua , Surajit Chattopadhyay , Aroonkumar Beesham

In this paper, we consider a recently proposed model of Dark Energy (DE) know as Modified Holographic Ricci DE (MHRDE) (which is function of the Hubble parameter and its first derivative with respect to the cosmic time $t$) in the light of…

General Physics · Physics 2017-05-31 Antonio Pasqua , Surajit Chattopadhyay , Iuliia Khomenko

FlameFinder is a deep metric learning (DML) framework designed to accurately detect flames, even when obscured by smoke, using thermal images from firefighter drones during wildfire monitoring. Traditional RGB cameras struggle in such…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Hossein Rajoli , Sahand Khoshdel , Fatemeh Afghah , Xiaolong Ma

In this paper, a holographic dark energy model, dubbed Ricci dark energy, is confronted with cosmological observational data from type Ia supernovae (SN Ia), baryon acoustic oscillations (BAO) and cosmic microwave background (CMB). By using…

Astrophysics · Physics 2014-11-18 Lixin Xu , Wenbo Li , Jianbo Lu , Baorong Chang

The present work reports study on the interacting Ricci dark energy in a modified gravity theory named $f(R,T)$ gravity. The specific model $f(R,T)=\mu R+\nu T$ (proposed by R. Myrzakulov, arXiv:1205.5266v2) is considered here. For this…

General Physics · Physics 2014-03-31 Surajit Chattopadhyay

We study the R\'enyi holographic dark energy (RHDE) model by using the future and the particle horizons as the infrared (IR) cut-off. With the initial condition from the literature, most of the cosmological parameters are computed. Some of…

General Relativity and Quantum Cosmology · Physics 2021-05-25 Suphakorn Chunlen , Phongsaphat Rangdee

In this work, we consider the power-law corrected and the logarithmic-corrected versions of the Holographic Dark Energy (HDE) model in a non-flat FRW Universe filled with a viscous Dark Energy (DE) interacting with Dark Matter (DM). We…

General Relativity and Quantum Cosmology · Physics 2025-09-09 Antonio Pasqua

We propose a novel dark-energy equation-of-state parametrization, with a single parameter $\eta$ that quantifies the deviation from $\Lambda$CDM cosmology. We first confront the scenario with various datasets, from Hubble function (OHD),…

General Relativity and Quantum Cosmology · Physics 2024-06-04 J. K. Singh , Preeti Singh , Emmanuel N. Saridakis , Shynaray Myrzakul , Harshna Balhara

Latent thermal energy storage (TES) devices could enable advances in many thermal management applications, including peak load shifting for reducing energy demand and cost of HVAC or providing supplemental heat rejection in transient…

Systems and Control · Electrical Eng. & Systems 2023-03-20 Michael Shanks , Uduak Inyang-Udoh , Neera Jain

Holographic Ricci dark energy evolving through its interaction with dark matter is a natural choice for the running vacuum energy model. We have analyzed the relative significance of two versions of this model in the light of SNIa, CMB, BAO…

General Relativity and Quantum Cosmology · Physics 2020-10-21 Paxy George , Titus K Mathew

There are many kinds of models which describe the dynamics of dark energy (DE). Among all we adopt an equation of state (EoS) which varies as a function of time. We adopt Markov Chain Monte Carlo method to constrain the five parameters of…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-15 R. Ichimasa , E. P. B. A. Thushari , M. Hashimoto