We analyse the mechanisms ruling galactic disc heating through the dynamics of space velocities U, V and W, extracted from the Geneva-Copenhagen catalogue. To do this, we use a model based on non-extensive statistical mechanics, where we derive the probability distribution functions that quantify the non-Gaussian effects. Furthermore, we find that the deviation q –1 at a given stellar age follows a non-random behaviour. As a result, the q-index behaviour indicates that the vertical component W, perpendicular to the Galactic plane, does not “heat up” at random, which is in disagreement with previous works that attributed the evolution of W to randomness. Finally, our results bring a new perspective to this matter and open the way for studying Galactic kinematic components through the eyes of more robust statistical models that consider non-Gaussian effects.

The authors would like to dedicate this paper to all the victims of the COVID-19 pandemic around the world.

我们通过从日内瓦-哥本哈根目录中提取的空间速度U，V和W的动力学来分析控制银河系盘加热的机制。为此，我们使用基于非广泛统计机制的模型，在此模型中，我们得出了量化非高斯效应的概率分布函数。此外，我们发现在给定的恒星年龄下偏差q –1遵循非随机行为。结果，q指数行为表明垂直于银河平面的垂直分量W不会随机“变热”，这与先前归因于W演化的工作不同。随机性。最后，我们的结果为该问题提供了新的视角，并通过考虑非高斯效应的更健壮的统计模型为研究银河运动学成分开辟了道路。

作者希望将本文献给全球COVID-19大流行的所有受害者。