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Journal article

Actions for axisymmetric potentials

Abstract:

We give an algorithm for the economical calculation of angles and actions for stars in axisymmetric potentials. We test the algorithm by integrating orbits in a realistic model of the Galactic potential, and find that, even for orbits characteristic of thick-disc stars, the errors in the actions are typically smaller than 2 percent. We describe a scheme for obtaining actions by interpolation on tabulated values that significantly accelerates the process of calculating observables quantities, ...

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Publication status:
Published

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Journal:
Monthly Notices of the Royal Astronomical Society More from this journal
Volume:
426
Issue:
2
Pages:
1324-1327
Publication date:
2012-07-20
DOI:
ISSN:
0035-8711
Keywords:
Pubs id:
pubs:344396
UUID:
uuid:6c1cd78b-9a4a-48af-bdf3-ca58ce3e44a6
Local pid:
pubs:344396
Source identifiers:
344396
Deposit date:
2013-11-16

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