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

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arxiv 2008.13624 v3 pith:RY6DFZDY submitted 2020-08-28 astro-ph.GA

A.T. Bajkova , V.V. Bobylev This is my paper · ORCID
classification astro-ph.GA
keywords clustersglobularorbitsdatagaiagalacticgalaxymilky
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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).

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Neighbors, Not Kin: Kinematic evidence for tidal tails from NGC 7492 along the Sagittarius stream

    astro-ph.GA 2026-07 accept novelty 6.0 of 10

    GIRAFFE radial velocities and metallicities confirm NGC 7492 tidal tails extending ≥1.8 deg, kinematically and chemically distinct from the overlapping Sagittarius stream.

  2. The complex stellar system M 22: constraining the chemical enrichment from AGB stars using magnesium isotope ratios

    astro-ph.GA 2026-07 conditional novelty 6.0 of 10

    First Mg isotope measurements at [Fe/H]≈-2 in a globular cluster show no difference tied to s-process enrichment, favoring ~2.75 M_sun AGB polluters and a 280–480 Myr age gap.

  3. The complex stellar system M 22: confirming abundance variations with high precision differential measurements

    astro-ph.GA 2026-07 conditional novelty 6.0 of 10

    High-precision differential abundances confirm M 22 hosts a >0.24 dex iron spread and ~0.65 dex s-process spread, and reveal new internal abundance variations within each population.

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