论文标题
使用曲率耦合的重力理论对MOND的非vacuum相对论扩展,它们在没有深色组件的情况下应用于宇宙的加速膨胀
Non-vacuum relativistic extensions of MOND using metric theories of gravity with curvature-matter couplings and their applications to the accelerated expansion of the Universe without dark components
论文作者
论文摘要
我们讨论了使用重力理论与曲率 - 曲线耦合的优势,以构建最简单版本的修改后的牛顿动力学(MOND)的相对论概括,其中Tully-fisher量表对各种天文学对象有效。我们表明,这些提案在巨大和无质量颗粒(光子)的轨迹的最弱扰动顺序上有效。这些构建体可以分为局部和非本地度量的重力理论,并具有曲率耦合。使用FLRW宇宙中最简单的两个局部结构作为粉尘,我们表明,不需要将暗物质和暗能量成分引入弗里德曼方程中,以说明当前时代加速宇宙的IA类型超新星观测。
We discuss the advantages of using metric theories of gravity with curvature-matter couplings in order to construct a relativistic generalisation of the simplest version of Modified Newtonian Dynamics (MOND), where Tully-Fisher scalings are valid for a wide variety of astrophysical objects. We show that these proposals are valid at the weakest perturbation order for trajectories of massive and massless particles (photons). These constructions can be divided into local and non-local metric theories of gravity with curvature-matter couplings. Using the simplest two local constructions in a FLRW universe for dust, we show that there is no need for the introduction of dark matter and dark energy components into the Friedmann equation in order to account for type Ia supernovae observations of an accelerated universe at the present epoch.