论文标题
卫星星系以银河系的方式拖放田间星星
Satellite galaxies' drag on field stars in the Milky Way
论文作者
论文摘要
使用GAIA EDR3数据，已经研究了银河系星星周围卫星星系周围的速度分散。我们已经安装了针对卫星银河系距离的速度分散体，发现速度分散体的梯度与卫星星系的质量有关。随着刻录顺序近似，在卫星星系的质量与由于其重力阻力引起的速度分散梯度之间拟合了线性相关。尽管我们的结果是观察性的定性结果，但它可以显示出更好的关系，并在将来观察到更多的观察结果。
With Gaia EDR3 data, velocity dispersion of Milky Way field stars around satellite galaxies have been investigated. We have fitted velocity dispersion against distance to satellite galaxy and found the gradient of velocity dispersion is related to the mass of satellite galaxy. With order-of-magnitude approximations, a linear correlation has been fitted between the mass of satellite galaxy and gradient of velocity dispersion caused by its gravitational drag. Though our result is an observational qualitative result, it shows better relation could be obtained with more observations in the future.
