面对小加速度下弱引力透镜数据的以太标量张量理论
Aether scalar tensor theory confronted with weak lensing data at small accelerations
AI总结：
本研究针对AeST模型仅在有限银心半径内复现MOND结果的问题，通过求解其运动方程并与弱引力透镜观测数据对比，发现数据未支持该模型在探测半径内相对MOND的预测偏差。
摘要：
近期提出的以太标量张量（AeST）模型既复现了粒子暗物质在宇宙学尺度上的成功，也复现了修正牛顿动力学（MOND）在星系尺度上的成功。但AeST模型仅在某一最大银心半径范围内复现MOND的结果。由于已知MOND在这些尺度上与观测结果拟合得很好，这就引发了AeST模型是否与数据存在矛盾的问题。我们利用近期的弱引力透镜数据分析，检验了AeST模型是否与观测结果冲突。我们求解了AeST模型的运动方程，分析了解的行为，并将结果与观测数据进行了对比。AeST模型在弱引力透镜探测的半径范围内表现出一些与MOND的偏差。数据并未明确显示出这些预测的偏差。
英文摘要：
The recently proposed aether scalar tensor (AeST) model reproduces both the successes of particle dark matter on cosmological scales and those of modified Newtonian dynamics (MOND) on galactic scales. But the AeST model reproduces MOND only up to a certain maximum galactocentric radius. Since MOND is known to fit very well to observations at these scales, this raises the question of whether the AeST model comes into tension with data. We tested whether or not the AeST model is in conflict with observations using a recent analysis of data for weak gravitational lensing. We solved the equations of motion of the AeST model, analyzed the solutions' behavior, and compared the results to observational data. The AeST model shows some deviations from MOND at the radii probed by weak gravitational lensing. The data show no clear indication of these predicted deviations.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
