Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 426, Issue 1, Pages 128-139Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2966.2012.21698.x
Keywords
methods: numerical; Galaxy: kinematics and dynamics; solar neighbourhood; Galaxy: structure; galaxies: kinematics and dynamics
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Funding
- STFC
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The usefulness of angleaction variables in galaxy dynamics is well known, but their use is limited due to the difficulty of their calculation in realistic galaxy potentials. Here we present a method for estimating angleaction variables in a realistic Milky Way axisymmetric potential by locally fitting a Stackel potential over the region an orbit probes. The quality of the method is assessed by comparison with other known methods for estimating angleaction variables of a range of disc and halo-type orbits. We conclude by projecting the GenevaCopenhagen survey into angleaction space.
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