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Cosmology in doubly coupled massive gravity: Constraints from SNIa, BAO and CMB

机译:双引力耦合的宇宙学:来自SNIa,BAO和CMB的约束

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摘要

Massive gravity in the presence of doubly coupled matter field via en effective composite metric yields an accelerated expansion of the universe. It has been recently shown that the model admits stable de Sitter attractor solutions and could be used as a dark energy model. In this work, we perform a first analysis of the constraints imposed by the SNIa, BAO and CMB data on the massive gravity model with the effective composite metric and show that all the background observations are mutually compatible at the one sigma level with the model.
机译:通过有效的复合度量,在存在双重耦合物质场的情况下的大重力产生了宇宙的加速膨胀。最近显示,该模型允许使用稳定的de Sitter吸引子解,并且可以用作暗能量模型。在这项工作中,我们使用有效的复合度量对由SNIa,BAO和CMB数据施加于大规模重力模型的约束进行了首次分析,并表明所有背景观测值在一个sigma级别上都与模型相互兼容。

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