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相关论文: Effects of neutrino mass hierarchies on dynamical …

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Considering the mass splittings of three active neutrinos, we investigate how the nature of dark energy affects the cosmological constraints on the total neutrino mass $\sum m_\nu$ using the latest cosmological observations. In this paper,…

宇宙学与河外天体物理 · 物理学 2020-12-02 Ming Zhang , Jing-Fei Zhang , Xin Zhang

Taking into account the mass splittings between three active neutrinos, we investigate impacts of dark energy on constraining the total neutrino mass $\sum m_{\nu}$ by using recent cosmological observations. We consider two typical dark…

宇宙学与河外天体物理 · 物理学 2016-10-25 Sai Wang , Yi-Fan Wang , Dong-Mei Xia , Xin Zhang

Combining cosmic microwave background (CMB) data from Planck satellite data, Baryon Acoustic Oscillations (BAO) measurements and Type Ia supernovae (SNe Ia) data, we obtain the bounds on total neutrino masses $M_\nu$ with the approximation…

宇宙学与河外天体物理 · 物理学 2020-10-19 Zhenjie Liu , Haitao Miao

We constrain two dynamical dark energy models that are parametrized by the logarithm form of $w(z)=w_{0}+w_{1}\left(\frac{\ln (2+z)}{1+z}-\ln 2\right)$ and the oscillating form of…

广义相对论与量子宇宙学 · 物理学 2023-11-28 Tian-Ying Yao , Rui-Yun Guo , Xin-Yue Zhao

We investigate how the properties of dark energy affect the cosmological measurements of neutrino mass and extra relativistic degrees of freedom. We limit ourselves to the most basic extensions of $\Lambda$ cold dark matter (CDM) model,…

宇宙学与河外天体物理 · 物理学 2017-05-24 Ming-Ming Zhao , Yun-He Li , Jing-Fei Zhang , Xin Zhang

In this paper, we make a comparison for the impacts of smooth dynamical dark energy, modified gravity, and interacting dark energy on the cosmological constraints on the total mass of active neutrinos. For definiteness, we consider the…

宇宙学与河外天体物理 · 物理学 2020-01-13 Ming-Ming Zhao , Rui-Yun Guo , Dong-Ze He , Jing-Fei Zhang , Xin Zhang

We investigate how dark energy properties impact the cosmological limits on the total mass of active neutrinos. We consider two typical, simple dark energy models (that have only one more additional parameter than $\Lambda$CDM), i.e., the…

宇宙学与河外天体物理 · 物理学 2016-05-04 Xin Zhang

We investigate how the dark energy properties impact the constraints on the total neutrino mass in interacting dark energy (IDE) models. In this study, we focus on two typical interacting dynamical dark energy models, i.e., the interacting…

宇宙学与河外天体物理 · 物理学 2019-08-13 Lu Feng , Hai-Li Li , Jing-Fei Zhang , Xin Zhang

Recently, DESI has released baryon acoustic oscillation (BAO) data, and DES has also published its five-year supernova (SN) data. These observations, combined with cosmic microwave background (CMB) data, support a dynamically evolving dark…

宇宙学与河外天体物理 · 物理学 2025-04-09 Guo-Hong Du , Peng-Ju Wu , Tian-Nuo Li , Xin Zhang

We investigate the constraints on total neutrino mass in the scenario of vacuum energy interacting with cold dark matter. We focus on two typical interaction forms, i.e., $Q=\beta H\rho_{\rm c}$ and $Q=\beta H\rho_{\Lambda}$. To avoid the…

宇宙学与河外天体物理 · 物理学 2018-08-30 Rui-Yun Guo , Jing-Fei Zhang , Xin Zhang

In this work, we investigate the constraints on the total neutrino mass in the scenario of vacuum energy interacting with cold dark matter (abbreviated as I$\Lambda$CDM) by using the latest cosmological observations. We consider four…

宇宙学与河外天体物理 · 物理学 2020-11-16 Hai-Li Li , Jing-Fei Zhang , Xin Zhang

The recent GW170817 measurement favors the simplest dark energy models, such as a single scalar field. Quintessence models can be classified in two classes, freezing and thawing, depending on whether the equation of state decreases towards…

宇宙学与河外天体物理 · 物理学 2018-03-14 Jean-Baptiste Durrive , Junpei Ooba , Kiyotomo Ichiki , Naoshi Sugiyama

Recent results from DESI combined with cosmic microwave background data give the tightest constraints on the sum of neutrino masses to date. However, these analyses approximate the neutrino mass hierarchy by three degenerate-mass (DM)…

宇宙学与河外天体物理 · 物理学 2025-04-11 Laura Herold , Marc Kamionkowski

Measurements of the linear power spectrum of galaxies have placed tight constraints on neutrino masses. We extend the framework of the halo model of cosmological nonlinear matter clustering to include the effect of massive neutrino infall…

天体物理学 · 物理学 2008-11-26 Kevork Abazajian , Eric R. Switzer , Scott Dodelson , Katrin Heitmann , Salman Habib

Cosmological observables show a dependence with the neutrino mass, which is partially degenerate with parameters of extended models of gravity. We study and explore this degeneracy in Horndeski generalized scalar-tensor theories of gravity.…

宇宙学与河外天体物理 · 物理学 2017-04-03 Nicola Bellomo , Emilio Bellini , Bin Hu , Raul Jimenez , Carlos Pena-Garay , Licia Verde

Recent DESI results indicate a strong preference for dynamical dark energy (DE) when baryon acoustic oscillation (BAO) measurements are combined with supernovae (SNe) and cosmic microwave background (CMB) data using the…

宇宙学与河外天体物理 · 物理学 2026-01-26 Shubham Barua , Shantanu Desai

Using several cosmological observations, i.e. the cosmic microwave background anisotropies (WMAP), the weak gravitational lensing (CFHTLS), the measurements of baryon acoustic oscillations (SDSS+WiggleZ), the most recent observational…

宇宙学与河外天体物理 · 物理学 2012-12-07 Xin Wang , Xiao-Lei Meng , Tong-Jie Zhang , HuanYuan Shan , Yan Gong , Charling Tao , Xuelei Chen , Y. F. Huang

Taking the neutrino oscillation data into consideration, a dimensionless parameter $\Delta = (m_3-m_1)/(m_3+m_1)$ is adopted to parameterize the three neutrino mass eigenstates and the normal (positive $\Delta$) or inverted (negative…

宇宙学与河外天体物理 · 物理学 2018-09-05 En-Kun Li , Hongchao Zhang , Minghui Du , Zhi-Huan Zhou , Lixin Xu

The constraints on the $\Lambda$CDM model from type Ia supernova (SNe Ia) data alone and BAO data alone are similar, so it is worthwhile to compare their constraints on the property of dark energy. We apply the SNLS3 compilation of 472 SNe…

宇宙学与河外天体物理 · 物理学 2013-04-09 Yungui Gong , Qing Gao , Zong-Hong Zhu

We study the correlations between parameters characterizing neutrino physics and the evolution of dark energy. Using a fluid approach, we show that time-varying dark energy models exhibit degeneracies with the cosmic neutrino background…

宇宙学与河外天体物理 · 物理学 2017-08-28 Christiane S. Lorenz , Erminia Calabrese , David Alonso
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