The anisotropic distribution of the satellites in Milky-Way-like galaxy systems

The satellite systems of Milky-Way-like galaxies provide a useful means of understanding the galaxy formation process. It has been suggested that the currently observed anisotropic distribution of the satellites in the Milky Way is inconsistent with the concordant Λ CDM cosmology model on the galactic scale if they are random samples of dark matter sub-halos isotropically distributed around the central galaxy. In this talk, I will discuss our ongoing research aimed at understanding the origin of the plane of satellites and its relation to the cosmological model. This includes investigating the spatial distribution and time evolution of satellite galaxies in high-resolution hydrodynamical simulations, as well as exploring the possible rotational support of the plane of satellites. Our results will provide insights into the mechanisms behind the formation of satellite systems in Milky Way-like galaxies and their implications for the large-scale structure.