暗区相互作用的宇宙学模型
Cosmological model with interactions in the dark sector
摘要：
提出了一个由非相互作用重子物质和相互作用暗组分组成的当前宇宙的宇宙学模型。暗能量和暗物质通过它们的有效正压指数耦合，有效正压指数被认为是它们的能量密度之比的函数。研究了两种情况下，该比率是渐近稳定的，并考虑最佳拟合哈勃函数数据调整其参数。结果表明，减速参数，密度参数和光度距离有正确的行为，这是一个可行的宇宙目前的情况下预期。
英文摘要：
A cosmological model is proposed for the current Universe consisted of non-interacting baryonic matter and interacting dark components. The dark energy and dark matter are coupled through their effective barotropic indexes, which are considered as functions of the ratio between their energy densities. It is investigated two cases where the ratio is asymptotically stable and their parameters are adjusted by considering best fits to Hubble function data. It is shown that the deceleration parameter, the densities parameters, and the luminosity distance have the correct behavior which is expected for a viable present scenario of the Universe.
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