TeVeS能在星系尺度上避开暗物质吗？
Can TeVeS avoid Dark Matter on galactic scales?
摘要：
本文对TeVeS中的引力透镜作了完全相对论性的分析。通过从CASTLES数据库中估算一组六个透镜的透镜质量，然后将它们与恒星质量进行比较，得到并分析了两者之间的差额。考虑TeVeS函数$mu(y)$的参数化范围，它控制重力的修改的强度，它被发现，在银河系尺度上的TeVeS需要额外的暗物质与常用的$mu(y)$。软依赖的宇宙学框架和TeVeS自由参数的结果进行了讨论。对于$mu(y)$的一种特殊形式，TeVeS被发现需要非常少的暗物质。然而，旋转曲线数据排除了这种选择。无法同时拟合单一形式的$mu(y)$的透镜和旋转曲线是对“无暗物质“TeVeS提案的挑战。
英文摘要：
A fully relativistic analysis of gravitational lensing in TeVeS is presented. By estimating the lensing masses for a set of six lenses from the CASTLES database, and then comparing them to the stellar mass, the deficit between the two is obtained and analysed. Considering a parametrised range for the TeVeS function $mu(y)$, which controls the strength of the modification to gravity, it is found that on galactic scales TeVeS requires additional dark matter with the commonly used $mu(y)$. A soft dependence of the results on the cosmological framework and the TeVeS free parameters is discussed. For one particular form of $mu(y)$, TeVeS is found to require very little dark matter. This choice is however ruled out by rotation curve data. The inability to simultaneously fit lensing and rotation curves for a single form of $mu(y)$ is a challenge to a "no dark matter" TeVeS proposal.
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