Orbits of 152 Globular Clusters of the Milky Way Galaxy Constructed from the Gaia DR2 data

Abstract

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 (2019). For orbit integrating we have used the axisymmetric model of the Galactic potential based on the Navarro-Frenk-White dark halo, and modified by Bajkova and Bobylev (2016) using circular velocities of Galactic objects in wide region of Galactocentric distances (up to 200 kpc) from Bhattacharjee et.al. (2014) 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. (2019).

18 pages, 3 figures, 2 tables, accepted to RAA. arXiv admin note: text overlap with arXiv:2007.02350

References in corpus (2)

• Evidence for Two Early Accretion Events That Built the Milky Way Stellar Halo
• Milky Way Subsystems from Globular Clusters Kinematics Using Gaia DR2 and HST Data

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