非最小耦合标量场对相互作用星系动力学的影响
The influence of non-minimally coupled scalar fields on the dynamics of interacting galaxies
摘要：
我们研究酒吧在星系盘的形成作为一个潜在的影响下，这是从牛顿极限的标量-张量引力理论的两个螺旋星系碰撞的后果。我们发现，动力学效应依赖于参数（$α$，$λ$）的理论。特别是，我们观察到，酒吧是较短的较弱的潮汐扰动，这反过来又对应于我们的数值实验中使用的$λ$较小的值。
英文摘要：
We study bar formation in galactic disks as a consequence of the collision of two spiral galaxies under the influence of a potential which is obtained from the Newtonian limit of a scalar--tensor theory of gravity. We found that dynamical effects depend on parameters ($α$, $λ$) of the theory. In particular, we observe that the bar is shorter for weaker tidal perturbations, which in turn corresponds to smaller values of $λ$ used in our numerical experiments.
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