论文标题
测试与强力镜，IA型超新星和哈勃参数观测数据的巧合问题
Testing the coincidence problem with strong gravitational lens, Type Ia supernovae and Hubble parameter observational data
论文作者
论文摘要
在本文中，我们使用三种不同类型的观察数据，包括130个强力重力镜头（SGL）系统，IA型超新星（Sneia：Sneia：Sneia：Pantheon和Union2.1）和31个Hubble参数数据点（$ H（Z）$），从宇宙中心群中限制了现象学模型（$ρ_X\ varpropoppopopoppopopoptopto）。通过结合这三种数据（Union2.1+SGL+$ H（Z）$），我们以置信区间获得$2σ$，$ω__{x，0} = 0.69 \ pm0.34 $，$ω_x= -1.24 kms $^{ - 1} $ mpc $^{ - 1} $。根据我们的结果，我们发现$λ$ CDM模型仍然是目前与观察数据最吻合的模型，并且巧合问题并未缓解。此外，$ω_x$和$ω_m$在$ 0 <z <1.26 $中具有相同的数量级。最后，我们获得了过渡红移$ z_t = 0.645 $。如果过渡以$ z> 0.645 $发生，则有必要引入与暗物质相互作用的暗能量。
In this paper, we use three different kinds of observational data, including 130 strong gravitational lensing (SGL) systems, type Ia supernovae (SNeIa: Pantheon and Union2.1) and 31 Hubble parameter data points ($H(z)$) from cosmic chronometers to constrain the phenomenological model ($ρ_x\varproptoρ_m a^ξ$). By combining these three kinds of data (Union2.1+SGL+$H(z)$), we get the parameter value at the confidence interval of $2σ$, $Ω_{X,0} = 0.69\pm0.34$, $ω_x = -1.24\pm0.61$, $ξ= 3.8\pm3.9$ and $H_0 = 70.22\pm0.86$ kms$^{-1}$Mpc$^{-1}$. According to our results, we find that the $Λ$CDM model is still the model which is in best agreement with the observational data at present, and the coincidence problem is not alleviated. In addition, the $Ω_X$ and $Ω_m$ have the same order of magnitude in $0<z<1.26$. At last, we obtain the transition redshift $z_T=0.645$. If the transition occurs in $z>0.645$, it is necessary to introduce the dark energy interacting with dark matter.
