A decomposed generalised Chaplygin gas (gCg) with energy flux from dark energy to dark matter, represented by a negative value for the gas parameter $\alpha$, is shown to alleviate the tension between EDGES data and the cosmological standard model. Using EDGES data and employing a Bayesian statistical analysis, the agreement with the standard model is only marginal. However, if $\alpha$ is negative enough the gCg fits remarkably well the data, even in combination with SNe Ia datasets. On the other hand, when the CMB and BAO acoustic scales are included the preferred value for $\alpha$ is near zero, implying that a small deviation from $\Lambda$CDM is predicted.

中文翻译：

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使用标准蜡烛和标尺对EDGES 21厘米线观测值进行联合分析 $\Lambda$CDM和非绝热gCg模型

具有从暗能量到暗物质的能量通量的分解的广义Chaplygin气体（gCg），由气体参数的负值表示 $\alpha$被显示为减轻了EDGES数据和宇宙学标准模型之间的张力。使用EDGES数据并进行贝叶斯统计分析，与标准模型的协议仅是微不足道的。但是，如果$\alpha$如果gCg足够负，则即使与SNe Ia数据集结合也能很好地拟合数据。另一方面，当包括CMB和BAO声标时，$\alpha$ 接近零，这意味着与 $\Lambda$CDM是可以预测的。