论文标题
关于Baryons-Dark Energy弹性耦合的宇宙学特征
On cosmological signatures of baryons-dark energy elastic couplings
论文作者
论文摘要
我们考虑了一个场景，在没有任何能量转移的情况下，将深色能量和重子动态耦合。在这种情况下，背景宇宙学不受影响，在扰动水平上，耦合仅通过相应的黑能和重子出现。然后，我们探讨了这种情况的一些现象学后果及其在几个宇宙学观察力中的签名。特别是，我们显示了它抑制宇宙结构生长的能力。我们还使用宇宙学数据来限制模型的参数，并表明黑暗能量与宇宙学尺度上的重子的相互作用是有利的。
We consider a scenario where dark energy and baryons are dynamically coupled without any energy transfer. In this scenario, the background cosmology is unaffected and, at the perturbations level, the coupling only appears through the corresponding Euler equations of dark energy and baryons. We then explore some phenomenological consequences of this scenario and their signatures in several cosmological observables. In particular, we show its ability to suppress the growth of cosmic structures. We also constrain the parameters of the model with cosmological data and show that an interaction of dark energy with baryons on cosmological scales is mildly favoured.
