2019/01/01 by Hongsheng Zhang, Ya-Peng Hu, Ya-peng Hu +1
Physics and Astronomy · #Baryon acoustic oscillations #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark matter #Isotropy #Massive gravity #Metric (unit) #Noncommutative and Quantum Gravity Theories #Relativity and Gravitational Theory #Universe #astro-ph.CO #gr-qc #hep-th
paper · pdf · doi:10.1016/j.dark.2018.100257
published as Phys.Dark Univ.23(2019),100257 · 21 pages, 3 figures, version accepted by Physics of the Dark Universe
openalex publication_date 2019/01/01 · openalex created_date 2019/01/25 · arxiv created 2019/01/27 · arxiv updated 2019/01/29 · openalex updated_date 2026/08/05
It is known that de Rham-Gabadadze-Tolley (dRGT) massive gravity does not permit a homogeneous and isotropic universe with flat or spherical spatial metrics. We demonstrate that a singular reference metric solves this problem in an economic and straightforward way. In the dRGT massive gravity with a singular reference metric, there are sound homogeneous and isotropic cosmological solutions. We investigate cosmologies with the static and dynamical singular reference metrics, respectively. The term like dark energy appears naturally and the universe accelerates itself in some late time evolution. The term simulating dark matter also naturally emerges. We make a preliminary constraint on the parameters in the dRGT massive gravity in frame of the present cosmological model by using the data of supernovae, cosmic microwave back ground radiations, and baryonic acoustic oscillations.