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Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz

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Volume 23, Issue 3-4


On Cluster Rotation in the Galactic Tidal Field

Leonid P. Ossipkov
  • Department of Space Technologies and Applied Astrodynamics, Saint Petersburg State University, 35 Universitetskij pr., Staryj Peterhof, St. Petersburg 198504, Russian Federation
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Published Online: 2017-02-18 | DOI: https://doi.org/10.1515/astro-2017-0191


The dynamics of a rotating star cluster moving along a circular orbit in the axisymmetrical steady Galaxy is considered. The generalized tensor virial theorem allows to estimate its rotation speed. Conditions for direct and retrograde rotation in the galactic plane are found.

Keywords: stellar dynamics; methods: analytical; globular clusters: general; open clusters and associations: general


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About the article

Received: 2014-11-13

Accepted: 2014-11-24

Published Online: 2017-02-18

Published in Print: 2014-12-01

Citation Information: Open Astronomy, Volume 23, Issue 3-4, Pages 272–278, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2017-0191.

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© 2014 Leonid P. Ossipkov, published by De Gruyter Open. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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