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相关论文: AIC and BIC for cosmological interacting scenarios

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The goal of this paper is to study new cosmological models where the dark energy is a varying Chaplygin gas. This specific dark energy model with non-linear EoS had been often discussed in modern cosmology. Contrary to previous studies, we…

广义相对论与量子宇宙学 · 物理学 2021-05-04 M. Khurshudyan , R. Myrzakulov

Dark Scattering (DS) is an interacting dark energy model characterised by pure momentum exchange between dark energy and dark matter. It is phenomenologically interesting because it is unconstrained by CMB data and can alleviate the $S_8$…

宇宙学与河外天体物理 · 物理学 2025-09-03 M. Tsedrik , S. Lee , K. Markovic , P. Carrilho , A. Pourtsidou , C. Moretti , B. Bose , E. Huff , A. Robertson , P. L. Taylor , J. Zuntz

We revise the conditions for the physical viability of a cosmological model in which dark matter has bulk viscosity and also interacts with dark energy. We have also included radiation and baryonic matter components; all matter components…

宇宙学与河外天体物理 · 物理学 2015-06-16 Arturo Avelino , Yoelsy Leyva , L. Arturo Urena-Lopez

In this study we combine the background and the growth rate data in order to study the ability of the two oscillating dark energy parameterizations, to fit the observational data. Using the likelihood and MCMC method we try to explore the…

广义相对论与量子宇宙学 · 物理学 2019-05-07 Mehdi Rezaei

We study a two-parameter extension of the cosmological standard model $\Lambda$CDM in which cold dark matter interacts with a new form of dark radiation. The two parameters correspond to the energy density in the dark radiation fluid…

宇宙学与河外天体物理 · 物理学 2016-03-14 Julien Lesgourgues , Gustavo Marques-Tavares , Martin Schmaltz

There is a possibility of interaction between dark energy and dark matter, and this interaction may also undergo a sign change during the evolution of the universe. In this paper, we utilize the latest observational data to constrain models…

宇宙学与河外天体物理 · 物理学 2025-10-20 Tian-Nuo Li , Guo-Hong Du , Yun-He Li , Peng-Ju Wu , Shang-Jie Jin , Jing-Fei Zhang , Xin Zhang

We compare supernovae and Baryon Acoustic Oscillations data to the predictions of a cosmological model of interacting dark matter and dark energy. This theoretical model can be derived from the effective field theory of Einstein-Cartan…

宇宙学与河外天体物理 · 物理学 2019-05-01 Damien Bégué , Clément Stahl , She-Sheng Xue

In this paper, we investigate the observational constraints on the scenario of vacuum energy interacting with cold dark matter. We consider eight typical interaction forms in such an interacting vacuum energy scenario. The observational…

宇宙学与河外天体物理 · 物理学 2019-06-26 Hai-Li Li , Lu Feng , Jing-Fei Zhang , Xin Zhang

In this work we revisit the question of whether Cosmology can be made compatible with scenarios with light sterile neutrinos, as invoked to explain the SBL anomalies, in the presence of self-interaction among sterile neutrinos mediated by…

宇宙学与河外天体物理 · 物理学 2018-11-07 Ningqiang Song , M. C. Gonzalez-Garcia , Jordi Salvado

In this paper, we examine two types of interacting holographic dark energy model using Pantheon supernova data, BAO BOSS DR12, CMB Planck 2015, fgas (gas mass fraction) and SZ/Xray (Sunyaev-Zeldovich effect and X-ray emission) data from…

广义相对论与量子宇宙学 · 物理学 2020-07-14 Ehsan Sadri , Martiros Khurshudyan , Ding-fang Zeng

We study observational signatures of non-gravitational interactions between the dark components of the cosmic fluid, which can be either due to creation of dark particles from the expanding vacuum or an effect of the clustering of a…

宇宙学与河外天体物理 · 物理学 2019-12-10 Micol Benetti , Welber Miranda , Humberto A. Borges , Cassio Pigozzo , Saulo Carneiro , Jailson S. Alcaniz

The coupled dark energy model provides a possible approach to mitigate the coincidence problem of cosmological standard model. Here, the coupling term is assumed as $\bar{Q}=3H\xi_x\bar{\rho}_x$, which is related to the interaction rate and…

宇宙学与河外天体物理 · 物理学 2016-10-11 Weiqiang Yang , Hang Li , Yabo Wu , Jianbo Lu

We extend the results of a previous paper where a model of interacting dark energy, with a cosmological term decaying linearly with the Hubble parameter, is tested against the observed mass power spectrum. In spite of the agreement with…

天体物理学 · 物理学 2008-12-30 H. A. Borges , S. Carneiro , J. C. Fabris

Models with non-gravitational interactions between the dark matter and dark energy components are an alternative to the standard cosmological scenario. These models are characterized by an interaction term, and a frequently used…

广义相对论与量子宇宙学 · 物理学 2020-12-07 R. von Marttens , H. A. Borges , S. Carneiro , J. S. Alcaniz , W. Zimdahl

We study the Barrow holographic dark energy (BHDE) model using the apparent horizon as the infrared (IR) cut-off and ensuring thermodynamic consistency. However, the results show that the BHDE model without any interaction does not yield…

广义相对论与量子宇宙学 · 物理学 2025-01-31 Suphakorn Chunlen , Kraiwut Dakam

In this note, we extend our previous work [Phys. Lett. B 644, 7 (2007), astro-ph/0609597], and compare eleven interacting dark energy models with different couplings to the observational $H(z)$ data. However, none of these models is better…

天体物理学 · 物理学 2008-11-26 Hao Wei , Shuang Nan Zhang

We make a comparison for thirteen dark energy (DE) models by using current cosmological observations, including type Ia supernova, baryon acoustic oscillations, and cosmic microwave background. To perform a systematic and comprehensive…

宇宙学与河外天体物理 · 物理学 2018-07-20 Sixiang Wen , Shuang Wang , Xiaolin Luo

We introduce a new criterion to determine the order of an autoregressive model fitted to time series data. It has the benefits of the two well-known model selection techniques, the Akaike information criterion and the Bayesian information…

统计理论 · 数学 2016-08-25 Jie Ding , Vahid Tarokh , Yuhong Yang

We study the dynamical behaviour of the interacting holographic dark energy model whose interaction term is $Q=3H(\lam_d\rho_d + \lam_c\rho_c)$, where $\rho_d$ and $\rho_c$ are the energy density of dark energy and CDM respectively. To…

天体物理学 · 物理学 2008-11-26 Khamphee Karwan

In this work, we consider the cosmological constraints on the interacting dark energy models. We generalize the models considered previously by Guo {\it et al.}, Costa and Alcaniz, and try to discuss two general types of models: type I…

广义相对论与量子宇宙学 · 物理学 2010-07-21 Hao Wei