Six New Galactic Orbits of Globular Clusters in a Milky-Way-Like Galaxy

Details Six New Galactic Orbits of Globular Clusters in a Milky-Way-Like Galaxy Six New Galactic Orbits of Globular Clusters in a Milky-Way-Like Galaxy

2007-10-29

arxiv.org/abs/0710.5526v1

Astronomy and Astrophysics

Astrophysics

29 pages, 11 figures. Accepted for publication in ApJ

Scientific paper

10.1086/524982

Absolute proper motions for six new globular clusters have recently been determined. This motivated us to obtain the Galactic orbits of these six clusters both in an axisymmetric Galactic potential and in a barred potential, such as the one of our Galaxy. Orbits are also obtained for a Galactic potential that includes spiral arms. The orbital characteristics are compared and discussed for these three cases. Tidal radii and destruction rates are also computed and discussed.

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