论文标题

宇宙边界通量参数

Cosmological Boundary Flux Parameter

论文作者

Hernández-Jiménez, Rafael, Moreno, Claudia, Bellini, Mauricio, Ortiz, C.

论文摘要

{\ it {宇宙边界通量参数}}是一个新颖的建议,它试图解释宇宙学参数$λ$的起源,纯粹是通过几何性质来解释的。然后,我们将这种新方法与压缩流体一起实现了FLRW宇宙。我们提出了一个ANSATZ,其中$λ$与物质领域直接耦合;因此,仅引入一个附加参数:$λ$。同样,通过统计分析,使用观察性哈勃和IA型超新星的延迟数据,我们通过仿射不变的MCMC计算了自由参数的最佳拟合值。我们要强调的是,联合分析产生较小的$ h_ {0}^{\ rm cbfp} = 69.80 \ rm \,\,\,\,km \,s^{ - 1} \,mpc^{ - 1} $相反,相反,平面$ CDM $ CDM $ CDM $ CDM $ CDM $ CDM $ H__ cdm} = 70.53 \ rm \,\,km \,s^{ - 1} \,mpc^{ - 1} $。这里介绍的工作旨在为讨论宇宙加速的可能解释做出贡献,以及在现代宇宙学中解决其他重要问题。

The {\it{Cosmological Boundary Flux Parameter}} is a novel proposal that attempts to explain the origin of the cosmological parameter $Λ$ purely by geometric nature. Then we implement this new approach to a flat FLRW universe along with a barotropic fluid. We present an ansatz in which $Λ$ is straightforwardly coupled to the matter sector; therefore, only one additional parameter was introduced: $λ$. Also, through a statistical analysis, using late-time data of observational Hubble and type Ia Supernovae, we computed the joint best-fit value of the free parameters by means of the affine-invariant MCMC. We want to emphasise that the joint analysis produces a smaller $H_{0}^{\rm CBFP}=69.80\rm\,\, Km \,s^{-1}\,Mpc^{-1}$ in contrast to the flat $Λ$CDM result $H_{0}^{Λ\rm CDM}=70.53\rm\,\, Km \,s^{-1}\,Mpc^{-1}$. The work presented here seeks to contribute to the discussion of the possible explanation for the cosmos' acceleration, together with tackling other important questions in modern cosmology.

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