论文标题
非局部重力中有效暗物质的特征
Characteristics of Effective Dark Matter in Nonlocal Gravity
论文作者
论文摘要
非局部重力（NLG）是爱因斯坦重力理论的经典非局部概括，与培养基的非局部电动力学相似地构建。根据NLG的说法，实际上，天体物理学和宇宙学中的暗物质是普遍重力相互作用的非本地方面。我们在这里专注于NLG中有效暗物质的两个主要特征，即（a）NLG中有效的暗物质的密度始终是有限的，因此不含尖，并且（b）矮星系中的暗物质的有效暗物质比在标准粒子暗范式中通常所假设的效率较低。讨论了NLG与三个超扩散星系AGC 114905、242019和219533相关的天体物理意义。
Nonlocal gravity (NLG) is a classical nonlocal generalization of Einstein's theory of gravitation that has been constructed in close analogy with the nonlocal electrodynamics of media. According to NLG, what appears as dark matter in astrophysics and cosmology is in reality the nonlocal aspect of the universal gravitational interaction. We focus here on two main features of the effective dark matter in NLG, namely, (a) the density of effective dark matter in NLG is always finite and therefore cusp-free, and (b) there is less effective dark matter in dwarf galaxies than is generally assumed in the standard particle dark matter paradigm. The corresponding astrophysical implications of NLG in connection with three ultra-diffuse galaxies AGC 114905, 242019, and 219533 are discussed.
