Moffat提出的修正重力模型（MOG）的观测约束：使用麦哲伦系统
Observational Constraints on the Modified Gravity Model (MOG) Proposed by Moffat: Using the Magellanic System
摘要：
在修正的重力模型的框架内，研究了麦哲伦流（MS）动力学的一个简单模型。我们假设星系是由重子物质组成的背景下的暗物质的情况。我们在这里使用的模型被命名为Moffat（2005）提出的修正重力（MOG）。为了检验在MOG理论下MS的整体性质的兼容性，MS的观测径向速度剖面与使用$χ^2$拟合方法的数值结果进行了比较。为了获得最佳的模型参数，进行了极大似然分析。我们还将该模型的结果与冷暗物质（CDM）晕模型和Bekenstein（2004）提出的另一种引力模型TeVeS进行了比较。我们表明，通过选择适当的值的自由参数，MOG理论似乎是合理的解释MS以及CDM和TeVeS模型的动力学。
英文摘要：
A simple model for the dynamics of the Magellanic Stream (MS), in the framework of modified gravity models is investigated. We assume that the galaxy is made up of baryonic matter out of context of dark matter scenario. The model we used here is named Modified Gravity (MOG) proposed by Moffat (2005). In order to examine the compatibility of the overall properties of the MS under the MOG theory, the observational radial velocity profile of the MS is compared with the numerical results using the $χ^2$ fit method. In order to obtain the best model parameters, a maximum likelihood analysis is performed. We also compare the results of this model with the Cold Dark Matter (CDM) halo model and the other alternative gravity model that proposed by Bekenstein (2004), so called TeVeS. We show that by selecting the appropriate values for the free parameters, the MOG theory seems to be plausible to explain the dynamics of the MS as well as the CDM and the TeVeS models.
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