Orbits of 152 globular clusters of the MilkyWay galaxy constructed from Gaia DR2

We present orbits and their properties for 152 globular clusters of the Milky Way galaxy obtained using average Gaia DR2 proper motions and other astrometric data from the list of Vasiliev. For orbital integration we have applied the axisymmetric model of the Galactic potential based on the Navarro-Frenk- White dark halo, and modified by Bajkova & Bobylev utilizing circular velocities of Galactic objects in a wide region of Galactocentric distances (up to 200 kpc) from the Bhattacharjee et al. catalog. Based on the analysis of the obtained orbits, we have modified the composition of the subsystems of globular clusters presented in Massari et al.

Automated summary

This study presented orbits and properties of 152 globular clusters in the Milky Way galaxy using Gaia DR2 proper motions and other astrometric data. The orbits were analyzed based on an axisymmetric model of the Galactic potential and modifications were made to the composition of the globular cluster subsystems.