Black holes and stars in the minimal theory of massive gravity
Black holes and stars in the minimal theory of massive gravity
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DOI：
10.1103/physrevd.98.104031
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发表时间：
2018-08
影响因子：
5
通讯作者：
A. D. Felice;F. Larrouturou;S. Mukohyama;Michele Oliosi
中科院分区：
文献类型：
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作者：
A. D. Felice;F. Larrouturou;S. Mukohyama;Michele Oliosi
在这封信中，我们表明，任何解决方案的广义相对论（GR），可以呈现空间平坦的坐标变化也是一个解决方案的最小质量引力理论（MTMG）的自加速分支，有或没有物质。然后，我们第一次获得黑洞和星星的解决方案，在大规模的引力理论，同意在GR相应的解决方案，是免费的强耦合问题。这特别意味着，参数化后牛顿参数$\beta^{\rm PPN}$和$\gamma^{\rm PPN}$是统一的，因为在GR中。我们进一步展示了这些解决方案可以嵌入在宇宙学设置。虽然宇宙学尺度在以前的工作中已经被考虑过，但这是第一次对MTMG自加速分支的较短尺度下的现象学进行研究。
In this letter, we show that any solution of general relativity (GR) that can be rendered spatially flat by a coordinate change is also a solution of the self-accelerating branch of the minimal theory of massive gravity (MTMG), with or without matter. We then for the first time obtain black hole and star solutions in a theory of massive gravity that agree with the corresponding solutions in GR and that are free from strong coupling issues. This in particular implies that the parametrized post-Newtonian parameters $\beta^{\rm PPN}$ and $\gamma^{\rm PPN}$ are unity, as in GR. We further show how these solutions can be embedded in a cosmological setting. While cosmological scales have already been considered in previous works, this is the first study of the phenomenology at shorter scales of the self-accelerating branch of MTMG.