论文标题

一个新的耦合三型深色能模型及其对$ H_0 $张力的影响

A new coupled three-form dark energy model and implications for the $H_0$ tension

论文作者

Yao, Yan-Hong, Meng, Xin-He

论文摘要

我们提出了一个新的耦合三型深色能模型,以减轻本文中哈勃张力。首先,通过使用耦合的三型深色能模型进行动态分析,我们获得了四个固定点,包括一个代表辐射主导的宇宙的鞍点,一个代表物质主导宇宙的鞍点,以及两个代表两个饱和的De de Sitter Universes的吸引者。其次,通过面对具有宇宙微波背景(CMB),Baryonic声学振荡(BAO)(BAO),IA Supernovae(IA SuperNovae(SN IA)型(SN IA)观察,我们获得$ H_0 = 67.8.8 __的$ 1-67.8 _____-级别)km/s/mpc,用于耦合的三型深色能模型和$ h_0 = 67.6 _ { - 0.5}^{+0.5} $($1σ$级别)km/s/s/s/mpc的$λ$ $ cdm的$ cdm型号与最新级别的$ 4.3 $ 4.3 $ 4.3 $ cdmentive in_0 $ 4.3Scys in_0 $ 4.3Scys in_0 $ 4.3Scys in_0 $4.3σ $ H_0 $值$5.1σ$级别。

We propose a new coupled three-form dark energy model to relieve the Hubble tension in this paper. Firstly, by performing a dynamical analysis with the coupled three-form dark energy model, we obtain four fixed points, including a saddle point representing a radiation dominated Universe, a saddle point representing a matter dominated Universe, and two attractors representing two saturated de Sitter Universes. Secondly, by confronting the coupled three-form dark energy model and the $Λ$ cold dark matter model (the $Λ$CDM model) with cosmic microwave background (CMB), baryonic acoustic oscillations (BAO), Type Ia supernovae (SN Ia) observations, we obtain $H_0= 67.8_{-0.6}^{+0.7}$($1σ$ level) km/s/Mpc for the coupled three-form dark energy model and $H_0=67.6_{-0.5}^{+0.5}$($1σ$ level) km/s/Mpc for the $Λ$CDM model, the former is in strong tension with the latest local measured $H_0$ value at $4.3σ$ confidence level, while the latter is in strong tension with the latest local measured $H_0$ value at $5.1σ$ level.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源