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首页> 外文期刊>International journal of modern physics, D. Gravitation, astrophysics, cosmology >Quintessence and tachyon dark energy in interaction with dark matter: Observational constraints and model selection
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Quintessence and tachyon dark energy in interaction with dark matter: Observational constraints and model selection

机译:Quintessence和Tachyon黑暗能量与暗物质的互动:观察限制和模型选择

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摘要

We derive two field theory models of interacting dark energy, one in which dark energy is associated with the quintessence and another in which it is associated with the tachyon. In both, instead of choosing arbitrarily the potential of scalar fields, these are specified implicitly by imposing that the dark energy fields must behave as the new agegraphic dark energy. The resulting models are compared with the Pantheon supernovae sample, CMB distance information from Planck 2015 data, baryonic acoustic oscillations (BAO) and Hubble parameter data. For comparison, the noninteracting case and the ACDM model also are considered. By use of the A IC and BIC criteria, we have obtained strong evidence in favor of the two interacting models, and the coupling constants are nonvanishing at more than 3 sigma confidence level.
机译:我们得出了两个域面理论模型的相互作用的暗能,其中暗能与柔和态相关的暗能量,另一个与Tachyon相关联。 在这两者中,通过强调暗能场必须表现为新的夜间夜间黑能量,而不是任意选择标量字段的潜力。 将产生的模型与Planck 2015数据,缩拱声振荡(BAO)和Hubble参数数据的Palkcon Supernovae样本,CMB距离信息进行比较。 为了比较,也考虑了非交互式案例和ACDM模型。 通过使用IC和BIC标准,我们已经获得了强有力的证据,有利于两个相互作用的模型,并且耦合常数在超过3个σ的置信水平上是非凡的。

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