星系自转速度背后的一个新常数
A new constant behind the rotational velocity of galaxies
摘要:
本文研究了星系在标量-高斯-邦纳引力作用下的动力学演化与MOND范式的关系。这一研究有助于解释新的引力常量的存在。暗物质的稳定性强烈依赖于物质的能量密度。我们对计算星系的最大自转速度很感兴趣.我们证明了旋转星系可以用一个新的参数来描述,这个参数既依赖于标量场的最小值,也依赖于这个场的有效质量。根据观测数据,我们证明了这个参数是一个常数。
英文摘要:
The present work is devoted to study the dynamical evolution of the galaxies in scalar-GaussBonnet gravity in relationship with the MOND paradigm. This study is useful for giving meaning to the presence of a new gravitational constant. The stability of dark matter is strongly dependent on matter energy density. We interested in calculating the maximum rotational velocity of galaxies. We show that rotating galaxies can be described by a new parameter which depends on both on the minimum value of scalar fields and the effective mass of this field. According to the observation data, we have shown that this parameter is a constant.
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